diff --git a/.gitignore b/.gitignore
index 08cd31f..087ef9a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -73,3 +73,6 @@ video/
 # Server logs
 server.log
 *.log
+
+# Auth database
+data/
diff --git a/Dockerfile.rag b/Dockerfile.rag
index afca770..9a5f4af 100644
--- a/Dockerfile.rag
+++ b/Dockerfile.rag
@@ -6,4 +6,6 @@ RUN pip install --no-cache-dir --timeout 300 \
     lightrag-hku>=1.4.0 \
     openai>=1.0.0 \
     python-dotenv>=1.0.0 \
-    sentence-transformers>=3.0.0
+    sentence-transformers>=3.0.0 \
+    bcrypt>=4.0.0 \
+    "python-jose[cryptography]"
diff --git a/backend/auth/__init__.py b/backend/auth/__init__.py
new file mode 100644
index 0000000..f5ba767
--- /dev/null
+++ b/backend/auth/__init__.py
@@ -0,0 +1,6 @@
+"""Authentication and multi-tenant access control."""
+
+from backend.auth.deps import get_current_user, require_admin
+from backend.auth.models import UserContext
+
+__all__ = ["UserContext", "get_current_user", "require_admin"]
diff --git a/backend/auth/database.py b/backend/auth/database.py
new file mode 100644
index 0000000..431e1a9
--- /dev/null
+++ b/backend/auth/database.py
@@ -0,0 +1,407 @@
+"""SQLite persistence for organizations, users, projects."""
+
+import os
+import sqlite3
+from contextlib import contextmanager
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Any, Dict, List, Optional, Tuple
+
+from backend.auth.security import hash_password
+
+DB_PATH = Path("data/transcriba.db")
+
+_SCHEMA = """
+CREATE TABLE IF NOT EXISTS organizations (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    slug TEXT NOT NULL UNIQUE,
+    name TEXT NOT NULL,
+    created_at TEXT NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS users (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    org_id INTEGER NOT NULL,
+    username TEXT NOT NULL,
+    password_hash TEXT NOT NULL,
+    role TEXT NOT NULL DEFAULT 'user',
+    is_active INTEGER NOT NULL DEFAULT 1,
+    created_at TEXT NOT NULL,
+    UNIQUE(org_id, username),
+    FOREIGN KEY (org_id) REFERENCES organizations(id)
+);
+
+CREATE TABLE IF NOT EXISTS projects (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    org_id INTEGER NOT NULL,
+    slug TEXT NOT NULL,
+    name TEXT NOT NULL,
+    created_at TEXT NOT NULL,
+    UNIQUE(org_id, slug),
+    FOREIGN KEY (org_id) REFERENCES organizations(id)
+);
+
+CREATE TABLE IF NOT EXISTS user_projects (
+    user_id INTEGER NOT NULL,
+    project_id INTEGER NOT NULL,
+    PRIMARY KEY (user_id, project_id),
+    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
+    FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE
+);
+"""
+
+
+def _utcnow() -> str:
+    return datetime.now(timezone.utc).isoformat()
+
+
+def get_db_path(config: Optional[dict] = None) -> Path:
+    env_path = os.getenv("AUTH_DATABASE_PATH")
+    if env_path:
+        return Path(env_path)
+    if config:
+        custom = config.get("auth", {}).get("database_path")
+        if custom:
+            return Path(custom)
+    DB_PATH.parent.mkdir(parents=True, exist_ok=True)
+    return DB_PATH
+
+
+@contextmanager
+def get_connection(config: Optional[dict] = None):
+    db_path = get_db_path(config)
+    db_path.parent.mkdir(parents=True, exist_ok=True)
+    conn = sqlite3.connect(db_path, check_same_thread=False)
+    conn.row_factory = sqlite3.Row
+    conn.execute("PRAGMA foreign_keys = ON")
+    conn.execute("PRAGMA journal_mode = WAL")
+    try:
+        yield conn
+        conn.commit()
+    except Exception:
+        conn.rollback()
+        raise
+    finally:
+        conn.close()
+
+
+def init_db(config: Optional[dict] = None) -> None:
+    with get_connection(config) as conn:
+        conn.executescript(_SCHEMA)
+    migrate_schema(config)
+
+
+def migrate_schema(config: Optional[dict] = None) -> None:
+    """Добавляет owner_user_id для личных проектов пользователей."""
+    with get_connection(config) as conn:
+        cols = {row[1] for row in conn.execute("PRAGMA table_info(projects)").fetchall()}
+        if "owner_user_id" not in cols:
+            conn.execute(
+                "ALTER TABLE projects ADD COLUMN owner_user_id INTEGER REFERENCES users(id)"
+            )
+            print("[Auth] Migration: projects.owner_user_id added")
+
+
+def count_users(config: Optional[dict] = None) -> int:
+    with get_connection(config) as conn:
+        row = conn.execute("SELECT COUNT(*) AS c FROM users").fetchone()
+        return int(row["c"])
+
+
+def get_org_by_slug(slug: str, config: Optional[dict] = None) -> Optional[Dict[str, Any]]:
+    with get_connection(config) as conn:
+        row = conn.execute(
+            "SELECT id, slug, name, created_at FROM organizations WHERE slug = ?",
+            (slug,),
+        ).fetchone()
+        return dict(row) if row else None
+
+
+def create_organization(slug: str, name: str, config: Optional[dict] = None) -> Dict[str, Any]:
+    with get_connection(config) as conn:
+        cur = conn.execute(
+            "INSERT INTO organizations (slug, name, created_at) VALUES (?, ?, ?)",
+            (slug, name, _utcnow()),
+        )
+        org_id = cur.lastrowid
+        row = conn.execute(
+            "SELECT id, slug, name, created_at FROM organizations WHERE id = ?",
+            (org_id,),
+        ).fetchone()
+        return dict(row)
+
+
+def create_user(
+    org_id: int,
+    username: str,
+    password: str,
+    role: str = "user",
+    config: Optional[dict] = None,
+) -> Dict[str, Any]:
+    with get_connection(config) as conn:
+        cur = conn.execute(
+            """
+            INSERT INTO users (org_id, username, password_hash, role, is_active, created_at)
+            VALUES (?, ?, ?, ?, 1, ?)
+            """,
+            (org_id, username, hash_password(password), role, _utcnow()),
+        )
+        user_id = cur.lastrowid
+        row = conn.execute(
+            "SELECT id, org_id, username, role, is_active, created_at FROM users WHERE id = ?",
+            (user_id,),
+        ).fetchone()
+        return dict(row)
+
+
+def get_user_by_username(org_id: int, username: str, config: Optional[dict] = None) -> Optional[Dict[str, Any]]:
+    with get_connection(config) as conn:
+        row = conn.execute(
+            """
+            SELECT u.id, u.org_id, u.username, u.password_hash, u.role, u.is_active,
+                   o.slug AS org_slug, o.name AS org_name
+            FROM users u
+            JOIN organizations o ON o.id = u.org_id
+            WHERE u.org_id = ? AND u.username = ?
+            """,
+            (org_id, username),
+        ).fetchone()
+        return dict(row) if row else None
+
+
+def get_user_by_id(user_id: int, config: Optional[dict] = None) -> Optional[Dict[str, Any]]:
+    with get_connection(config) as conn:
+        row = conn.execute(
+            """
+            SELECT u.id, u.org_id, u.username, u.password_hash, u.role, u.is_active,
+                   o.slug AS org_slug, o.name AS org_name
+            FROM users u
+            JOIN organizations o ON o.id = u.org_id
+            WHERE u.id = ?
+            """,
+            (user_id,),
+        ).fetchone()
+        return dict(row) if row else None
+
+
+def list_users(org_id: int, config: Optional[dict] = None) -> List[Dict[str, Any]]:
+    with get_connection(config) as conn:
+        rows = conn.execute(
+            """
+            SELECT id, org_id, username, role, is_active, created_at
+            FROM users WHERE org_id = ? ORDER BY username
+            """,
+            (org_id,),
+        ).fetchall()
+        users = [dict(r) for r in rows]
+        for user in users:
+            user["projects"] = get_user_project_slugs(user["id"], config=config, conn=conn)
+        return users
+
+
+def get_user_project_slugs(
+    user_id: int,
+    config: Optional[dict] = None,
+    conn: Optional[sqlite3.Connection] = None,
+) -> List[str]:
+    """Org-wide projects assigned to user by admin (not personal)."""
+    query = """
+        SELECT p.slug FROM projects p
+        JOIN user_projects up ON up.project_id = p.id
+        WHERE up.user_id = ? AND p.owner_user_id IS NULL
+        ORDER BY p.slug
+    """
+
+    def _fetch(connection: sqlite3.Connection) -> List[str]:
+        rows = connection.execute(query, (user_id,)).fetchall()
+        return [row["slug"] for row in rows]
+
+    if conn is not None:
+        return _fetch(conn)
+
+    with get_connection(config) as connection:
+        return _fetch(connection)
+
+
+def get_owned_project_slugs(
+    user_id: int,
+    config: Optional[dict] = None,
+) -> List[str]:
+    with get_connection(config) as conn:
+        rows = conn.execute(
+            """
+            SELECT slug FROM projects
+            WHERE owner_user_id = ?
+            ORDER BY slug
+            """,
+            (user_id,),
+        ).fetchall()
+        return [row["slug"] for row in rows]
+
+
+def _row_to_project(row: sqlite3.Row) -> Dict[str, Any]:
+    data = dict(row)
+    data["scope"] = "personal" if data.get("owner_user_id") else "org"
+    return data
+
+
+def create_project(
+    org_id: int,
+    slug: str,
+    name: str,
+    owner_user_id: Optional[int] = None,
+    config: Optional[dict] = None,
+) -> Dict[str, Any]:
+    slug = slug.strip().lower()
+    with get_connection(config) as conn:
+        cur = conn.execute(
+            """
+            INSERT INTO projects (org_id, slug, name, owner_user_id, created_at)
+            VALUES (?, ?, ?, ?, ?)
+            """,
+            (org_id, slug, name, owner_user_id, _utcnow()),
+        )
+        project_id = cur.lastrowid
+        row = conn.execute(
+            """
+            SELECT id, org_id, slug, name, owner_user_id, created_at
+            FROM projects WHERE id = ?
+            """,
+            (project_id,),
+        ).fetchone()
+        return _row_to_project(row)
+
+
+def list_projects(org_id: int, config: Optional[dict] = None) -> List[Dict[str, Any]]:
+    with get_connection(config) as conn:
+        rows = conn.execute(
+            """
+            SELECT id, org_id, slug, name, owner_user_id, created_at
+            FROM projects WHERE org_id = ? ORDER BY slug
+            """,
+            (org_id,),
+        ).fetchall()
+        return [_row_to_project(r) for r in rows]
+
+
+def list_org_projects(org_id: int, config: Optional[dict] = None) -> List[Dict[str, Any]]:
+    """Только общие проекты организации (без личных)."""
+    with get_connection(config) as conn:
+        rows = conn.execute(
+            """
+            SELECT id, org_id, slug, name, owner_user_id, created_at
+            FROM projects WHERE org_id = ? AND owner_user_id IS NULL
+            ORDER BY slug
+            """,
+            (org_id,),
+        ).fetchall()
+        return [_row_to_project(r) for r in rows]
+
+
+def set_user_projects(user_id: int, project_ids: List[int], config: Optional[dict] = None) -> None:
+    with get_connection(config) as conn:
+        conn.execute("DELETE FROM user_projects WHERE user_id = ?", (user_id,))
+        for project_id in project_ids:
+            conn.execute(
+                "INSERT INTO user_projects (user_id, project_id) VALUES (?, ?)",
+                (user_id, project_id),
+            )
+
+
+def get_project_by_slug(org_id: int, slug: str, config: Optional[dict] = None) -> Optional[Dict[str, Any]]:
+    with get_connection(config) as conn:
+        row = conn.execute(
+            """
+            SELECT id, org_id, slug, name, owner_user_id, created_at
+            FROM projects WHERE org_id = ? AND slug = ?
+            """,
+            (org_id, slug.strip().lower()),
+        ).fetchone()
+        return _row_to_project(row) if row else None
+
+
+def delete_project(project_id: int, config: Optional[dict] = None) -> None:
+    with get_connection(config) as conn:
+        conn.execute("DELETE FROM user_projects WHERE project_id = ?", (project_id,))
+        conn.execute("DELETE FROM projects WHERE id = ?", (project_id,))
+
+
+def bootstrap_from_config(config: dict) -> None:
+    init_db(config)
+    if count_users(config) > 0:
+        return
+
+    auth_cfg = config.get("auth", {})
+    bootstrap = auth_cfg.get("bootstrap", {})
+    org_slug = bootstrap.get("org_slug", "merakom")
+    org_name = bootstrap.get("org_name", "МЕРАКОМ")
+    admin_username = bootstrap.get("admin_username", "admin")
+    admin_password = (
+        os.getenv("AUTH_ADMIN_PASSWORD")
+        or bootstrap.get("admin_password")
+        or auth_cfg.get("admin_password", "admin123")
+    )
+
+    org = get_org_by_slug(org_slug, config)
+    if not org:
+        org = create_organization(org_slug, org_name, config)
+
+    create_user(org["id"], admin_username, admin_password, role="admin", config=config)
+
+    default_projects = bootstrap.get("default_projects") or [
+        {"slug": "2026", "name": "2026"},
+        {"slug": "gp-merakom", "name": "ГП МЕРАКОМ"},
+    ]
+    for proj in default_projects:
+        slug = str(proj.get("slug", "")).strip().lower()
+        name = str(proj.get("name", slug))
+        if slug and not get_project_by_slug(org["id"], slug, config):
+            create_project(org["id"], slug, name, owner_user_id=None, config=config)
+
+    print(f"[Auth] Bootstrap: org={org_slug}, admin={admin_username}")
+
+
+def migrate_legacy_data(org_slug: str) -> None:
+    """Move flat processed/* into org-scoped layout (one-time)."""
+    from backend.paths import MEETINGS_DIRNAME, RAG_CACHE_DIRNAME, PROCESSED_ROOT, write_folder_project_meta
+    from src.rag.parser import parse_project_from_filename
+    import shutil
+
+    legacy_rag = PROCESSED_ROOT / "lightrag_caches"
+    legacy_rag_test = PROCESSED_ROOT / "lightrag_caches_test"
+    org_root = PROCESSED_ROOT / org_slug
+    target_meetings = org_root / MEETINGS_DIRNAME
+    target_rag = org_root / RAG_CACHE_DIRNAME
+    target_meetings.mkdir(parents=True, exist_ok=True)
+    target_rag.mkdir(parents=True, exist_ok=True)
+
+    skip = {org_slug, "lightrag_caches", "lightrag_caches_test", MEETINGS_DIRNAME, RAG_CACHE_DIRNAME}
+    if PROCESSED_ROOT.exists():
+        for item in PROCESSED_ROOT.iterdir():
+            if not item.is_dir() or item.name in skip:
+                continue
+            dest = target_meetings / item.name
+            if not dest.exists():
+                shutil.move(str(item), str(dest))
+                print(f"[Auth] Migrated meeting folder: {item.name} -> {dest}")
+
+    for folder in target_meetings.iterdir():
+        if not folder.is_dir():
+            continue
+        meta_path = folder / ".project.json"
+        if not meta_path.exists():
+            project_slug = parse_project_from_filename(folder.name)
+            write_folder_project_meta(folder, project_slug)
+            print(f"[Auth] Assigned project {project_slug} -> {folder.name}")
+
+    if legacy_rag.exists() and legacy_rag != target_rag:
+        for item in legacy_rag.iterdir():
+            dest = target_rag / item.name
+            if item.is_dir() and not dest.exists():
+                shutil.move(str(item), str(dest))
+        if not any(legacy_rag.iterdir()):
+            legacy_rag.rmdir()
+        print(f"[Auth] Migrated RAG cache -> {target_rag}")
+
+    if legacy_rag_test.exists():
+        shutil.rmtree(legacy_rag_test, ignore_errors=True)
diff --git a/backend/auth/deps.py b/backend/auth/deps.py
new file mode 100644
index 0000000..f700018
--- /dev/null
+++ b/backend/auth/deps.py
@@ -0,0 +1,70 @@
+"""FastAPI auth dependencies."""
+
+from typing import Optional
+
+from fastapi import Depends, HTTPException, Query, status
+from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
+
+from backend.auth.models import UserContext
+from backend.auth.security import safe_decode_token
+from backend.auth.service import get_user_context
+from src.config import load_config
+
+bearer_scheme = HTTPBearer(auto_error=False)
+
+
+def _resolve_token(
+    credentials: Optional[HTTPAuthorizationCredentials],
+    token: Optional[str],
+) -> Optional[str]:
+    if credentials and credentials.scheme.lower() == "bearer":
+        return credentials.credentials
+    if token:
+        return token
+    return None
+
+
+async def get_current_user(
+    credentials: Optional[HTTPAuthorizationCredentials] = Depends(bearer_scheme),
+    token: Optional[str] = Query(None, alias="token"),
+) -> UserContext:
+    raw_token = _resolve_token(credentials, token)
+    if not raw_token:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Требуется авторизация",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+
+    config = load_config()
+    payload = safe_decode_token(raw_token, config)
+    if not payload:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Недействительный или просроченный токен",
+        )
+
+    user_id = int(payload.get("sub", 0))
+    ctx = get_user_context(user_id)
+    if not ctx:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Пользователь не найден или деактивирован",
+        )
+    return ctx
+
+
+async def require_admin(user: UserContext = Depends(get_current_user)) -> UserContext:
+    if not user.is_admin:
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Требуются права администратора")
+    return user
+
+
+def get_user_from_token(token: Optional[str]) -> Optional[UserContext]:
+    if not token:
+        return None
+    config = load_config()
+    payload = safe_decode_token(token, config)
+    if not payload:
+        return None
+    return get_user_context(int(payload.get("sub", 0)))
diff --git a/backend/auth/models.py b/backend/auth/models.py
new file mode 100644
index 0000000..154325b
--- /dev/null
+++ b/backend/auth/models.py
@@ -0,0 +1,53 @@
+"""Auth data models."""
+
+from dataclasses import dataclass, field
+from typing import List, Optional
+
+ROLES = ("admin", "director", "user")
+
+
+@dataclass
+class UserContext:
+    user_id: int
+    username: str
+    role: str
+    org_id: int
+    org_slug: str
+    org_name: str
+    project_slugs: List[str] = field(default_factory=list)  # назначенные org-проекты
+    owned_project_slugs: List[str] = field(default_factory=list)  # личные проекты
+
+    @property
+    def accessible_project_slugs(self) -> set[str]:
+        if self.has_all_projects_access:
+            return set()
+        return set(self.project_slugs) | set(self.owned_project_slugs)
+
+    @property
+    def is_admin(self) -> bool:
+        return self.role == "admin"
+
+    @property
+    def is_director(self) -> bool:
+        return self.role == "director"
+
+    @property
+    def has_all_projects_access(self) -> bool:
+        """Admin and director see all org projects and global RAG search."""
+        return self.role in ("admin", "director")
+
+    def can_access_project(self, project_slug: Optional[str]) -> bool:
+        if not project_slug:
+            return True
+        if self.has_all_projects_access:
+            return True
+        return project_slug in self.accessible_project_slugs
+
+    def filter_projects(self, projects: List[str]) -> List[str]:
+        if self.has_all_projects_access:
+            return projects
+        allowed = self.accessible_project_slugs
+        return [p for p in projects if p in allowed]
+
+    def can_global_search(self) -> bool:
+        return self.has_all_projects_access
diff --git a/backend/auth/routes.py b/backend/auth/routes.py
new file mode 100644
index 0000000..aeca3f7
--- /dev/null
+++ b/backend/auth/routes.py
@@ -0,0 +1,146 @@
+"""Auth HTTP routes."""
+
+from typing import List, Optional
+
+from fastapi import APIRouter, Depends, HTTPException
+from pydantic import BaseModel, Field
+
+from backend.auth.deps import get_current_user, require_admin
+from backend.auth.models import ROLES, UserContext
+from backend.auth import database as db
+from backend.auth.service import (
+    authenticate,
+    create_org_user,
+    create_personal_project,
+    delete_personal_project,
+    get_user_context,
+    list_accessible_projects,
+    update_user_projects,
+    user_to_dict,
+)
+from src.config import load_config
+
+router = APIRouter(prefix="/api/auth", tags=["auth"])
+admin_router = APIRouter(prefix="/api/admin", tags=["admin"])
+
+
+class LoginRequest(BaseModel):
+    org_slug: str = Field(default="merakom")
+    username: str
+    password: str
+
+
+class CreateUserRequest(BaseModel):
+    username: str
+    password: str
+    role: str = "user"
+    projects: List[str] = Field(default_factory=list)
+
+
+class CreateProjectRequest(BaseModel):
+    slug: str
+    name: str
+
+
+class UpdateUserProjectsRequest(BaseModel):
+    projects: List[str] = Field(default_factory=list)
+
+
+@router.post("/login")
+async def login(payload: LoginRequest):
+    result = authenticate(payload.org_slug, payload.username, payload.password)
+    if not result:
+        raise HTTPException(status_code=401, detail="Неверная организация, логин или пароль")
+    return result
+
+
+@router.get("/me")
+async def me(user: UserContext = Depends(get_current_user)):
+    return user_to_dict(user)
+
+
+@router.get("/projects")
+async def my_projects(user: UserContext = Depends(get_current_user)):
+    return {"projects": list_accessible_projects(user)}
+
+
+@router.post("/projects")
+async def create_my_project(payload: CreateProjectRequest, user: UserContext = Depends(get_current_user)):
+    try:
+        project = create_personal_project(user, payload.slug, payload.name)
+        return {"project": project}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e)) from e
+    except Exception as e:
+        if "UNIQUE" in str(e):
+            raise HTTPException(status_code=409, detail="Проект уже существует") from e
+        raise HTTPException(status_code=400, detail=str(e)) from e
+
+
+@router.delete("/projects/{slug}")
+async def delete_my_project(slug: str, user: UserContext = Depends(get_current_user)):
+    try:
+        delete_personal_project(user, slug)
+        return {"deleted": slug}
+    except PermissionError as e:
+        raise HTTPException(status_code=403, detail=str(e)) from e
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e)) from e
+
+
+@admin_router.get("/users")
+async def admin_list_users(admin: UserContext = Depends(require_admin)):
+    config = load_config()
+    rows = db.list_users(admin.org_id, config)
+    users = []
+    for row in rows:
+        ctx = get_user_context(row["id"])
+        if ctx:
+            users.append(user_to_dict(ctx))
+    return {"users": users}
+
+
+@admin_router.post("/users")
+async def admin_create_user(payload: CreateUserRequest, admin: UserContext = Depends(require_admin)):
+    if payload.role not in ROLES:
+        raise HTTPException(status_code=400, detail=f"role must be one of: {', '.join(ROLES)}")
+    try:
+        user = create_org_user(admin, payload.username, payload.password, payload.role, payload.projects)
+        return {"user": user}
+    except Exception as e:
+        if "UNIQUE" in str(e):
+            raise HTTPException(status_code=409, detail="Пользователь уже существует") from e
+        raise HTTPException(status_code=400, detail=str(e)) from e
+
+
+@admin_router.put("/users/{user_id}/projects")
+async def admin_set_user_projects(
+    user_id: int,
+    payload: UpdateUserProjectsRequest,
+    admin: UserContext = Depends(require_admin),
+):
+    try:
+        user = update_user_projects(admin, user_id, payload.projects)
+        return {"user": user}
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e)) from e
+
+
+@admin_router.get("/projects")
+async def admin_list_projects(admin: UserContext = Depends(require_admin)):
+    config = load_config()
+    return {"projects": db.list_projects(admin.org_id, config)}
+
+
+@admin_router.post("/projects")
+async def admin_create_project(payload: CreateProjectRequest, admin: UserContext = Depends(require_admin)):
+    slug = payload.slug.strip().lower()
+    if not slug:
+        raise HTTPException(status_code=400, detail="slug обязателен")
+    try:
+        project = db.create_project(admin.org_id, slug, payload.name, owner_user_id=None, config=load_config())
+        return {"project": project}
+    except Exception as e:
+        if "UNIQUE" in str(e):
+            raise HTTPException(status_code=409, detail="Проект уже существует") from e
+        raise HTTPException(status_code=400, detail=str(e)) from e
diff --git a/backend/auth/security.py b/backend/auth/security.py
new file mode 100644
index 0000000..dd6f2dd
--- /dev/null
+++ b/backend/auth/security.py
@@ -0,0 +1,71 @@
+"""Password hashing and JWT tokens."""
+
+import os
+from datetime import datetime, timedelta, timezone
+from typing import Any, Dict, Optional
+
+import bcrypt
+from jose import JWTError, jwt
+
+ALGORITHM = "HS256"
+
+
+def get_jwt_secret(config: Optional[dict] = None) -> str:
+    env_secret = os.getenv("JWT_SECRET")
+    if env_secret:
+        return env_secret
+    if config:
+        auth_cfg = config.get("auth", {})
+        secret = auth_cfg.get("jwt_secret")
+        if secret:
+            return secret
+    return "dev-insecure-change-me"
+
+
+def get_jwt_expire_hours(config: Optional[dict] = None) -> int:
+    if config:
+        return int(config.get("auth", {}).get("jwt_expire_hours", 168))
+    return 168
+
+
+def hash_password(password: str) -> str:
+    return bcrypt.hashpw(password.encode("utf-8"), bcrypt.gensalt()).decode("utf-8")
+
+
+def verify_password(plain: str, hashed: str) -> bool:
+    try:
+        return bcrypt.checkpw(plain.encode("utf-8"), hashed.encode("utf-8"))
+    except ValueError:
+        return False
+
+
+def create_access_token(
+    user_id: int,
+    org_id: int,
+    role: str,
+    username: str,
+    org_slug: str,
+    config: Optional[dict] = None,
+) -> str:
+    expire_hours = get_jwt_expire_hours(config)
+    expire = datetime.now(timezone.utc) + timedelta(hours=expire_hours)
+    payload = {
+        "sub": str(user_id),
+        "org_id": org_id,
+        "org_slug": org_slug,
+        "role": role,
+        "username": username,
+        "exp": expire,
+    }
+    return jwt.encode(payload, get_jwt_secret(config), algorithm=ALGORITHM)
+
+
+def decode_access_token(token: str, config: Optional[dict] = None) -> Dict[str, Any]:
+    return jwt.decode(token, get_jwt_secret(config), algorithms=[ALGORITHM])
+
+
+def safe_decode_token(token: str, config: Optional[dict] = None) -> Optional[Dict[str, Any]]:
+    try:
+        return decode_access_token(token, config)
+    except JWTError:
+        return None
diff --git a/backend/auth/service.py b/backend/auth/service.py
new file mode 100644
index 0000000..90899a2
--- /dev/null
+++ b/backend/auth/service.py
@@ -0,0 +1,180 @@
+"""Auth business logic."""
+
+import re
+from typing import Any, Dict, List, Optional
+
+from backend.auth import database as db
+from backend.auth.models import UserContext
+from backend.auth.security import create_access_token, verify_password
+from src.config import load_config
+
+
+def normalize_project_slug(slug: str) -> str:
+    value = slug.strip().lower()
+    value = re.sub(r"[^\w\-]", "-", value)
+    value = re.sub(r"-+", "-", value).strip("-_")
+    if not value:
+        raise ValueError("Некорректный slug проекта")
+    return value
+
+
+def _build_user_context(row: Dict[str, Any], config: Optional[dict] = None) -> UserContext:
+    user_id = row["id"]
+    return UserContext(
+        user_id=user_id,
+        username=row["username"],
+        role=row["role"],
+        org_id=row["org_id"],
+        org_slug=row["org_slug"],
+        org_name=row["org_name"],
+        project_slugs=db.get_user_project_slugs(user_id, config=config),
+        owned_project_slugs=db.get_owned_project_slugs(user_id, config=config),
+    )
+
+
+def _enrich_project(project: Dict[str, Any], ctx: UserContext) -> Dict[str, Any]:
+    item = dict(project)
+    item["is_owner"] = project.get("owner_user_id") == ctx.user_id
+    item["scope"] = project.get("scope") or ("personal" if project.get("owner_user_id") else "org")
+    return item
+
+
+def authenticate(org_slug: str, username: str, password: str) -> Optional[Dict[str, Any]]:
+    config = load_config()
+    org = db.get_org_by_slug(org_slug.strip().lower(), config)
+    if not org:
+        return None
+
+    user = db.get_user_by_username(org["id"], username.strip(), config)
+    if not user or not user.get("is_active"):
+        return None
+    if not verify_password(password, user["password_hash"]):
+        return None
+
+    ctx = _build_user_context(user, config)
+    token = create_access_token(
+        user_id=ctx.user_id,
+        org_id=ctx.org_id,
+        role=ctx.role,
+        username=ctx.username,
+        org_slug=ctx.org_slug,
+        config=config,
+    )
+    return {
+        "access_token": token,
+        "token_type": "bearer",
+        "user": user_to_dict(ctx),
+    }
+
+
+def get_user_context(user_id: int) -> Optional[UserContext]:
+    config = load_config()
+    row = db.get_user_by_id(user_id, config)
+    if not row or not row.get("is_active"):
+        return None
+    return _build_user_context(row, config)
+
+
+def user_to_dict(ctx: UserContext) -> Dict[str, Any]:
+    return {
+        "id": ctx.user_id,
+        "username": ctx.username,
+        "role": ctx.role,
+        "org_id": ctx.org_id,
+        "org_slug": ctx.org_slug,
+        "org_name": ctx.org_name,
+        "shared_projects": ctx.project_slugs,
+        "owned_projects": ctx.owned_project_slugs,
+        "projects": list(ctx.accessible_project_slugs) if not ctx.has_all_projects_access else [],
+        "is_admin": ctx.is_admin,
+        "is_director": ctx.is_director,
+        "all_projects_access": ctx.has_all_projects_access,
+    }
+
+
+def list_accessible_projects(ctx: UserContext) -> List[Dict[str, Any]]:
+    config = load_config()
+    all_projects = db.list_projects(ctx.org_id, config)
+    if ctx.has_all_projects_access:
+        return [_enrich_project(p, ctx) for p in all_projects]
+
+    result = []
+    assigned = set(ctx.project_slugs)
+    owned = set(ctx.owned_project_slugs)
+    for project in all_projects:
+        slug = project["slug"]
+        if project.get("owner_user_id") == ctx.user_id or slug in owned:
+            result.append(_enrich_project(project, ctx))
+        elif not project.get("owner_user_id") and slug in assigned:
+            result.append(_enrich_project(project, ctx))
+    return sorted(result, key=lambda p: (p["scope"] != "personal", p["slug"]))
+
+
+def ensure_project_access(ctx: UserContext, project_slug: str) -> None:
+    slug = project_slug.strip().lower()
+    if not ctx.can_access_project(slug):
+        raise PermissionError(f"Нет доступа к проекту: {slug}")
+
+
+def create_personal_project(ctx: UserContext, slug: str, name: str) -> Dict[str, Any]:
+    config = load_config()
+    normalized = normalize_project_slug(slug)
+    display_name = name.strip() or normalized
+    if db.get_project_by_slug(ctx.org_id, normalized, config):
+        raise ValueError("Проект с таким slug уже существует")
+    project = db.create_project(
+        ctx.org_id,
+        normalized,
+        display_name,
+        owner_user_id=ctx.user_id,
+        config=config,
+    )
+    return _enrich_project(project, ctx)
+
+
+def delete_personal_project(ctx: UserContext, slug: str) -> None:
+    config = load_config()
+    normalized = normalize_project_slug(slug)
+    project = db.get_project_by_slug(ctx.org_id, normalized, config)
+    if not project:
+        raise ValueError("Проект не найден")
+    if ctx.is_admin:
+        db.delete_project(project["id"], config)
+        return
+    if project.get("owner_user_id") != ctx.user_id:
+        raise PermissionError("Можно удалять только свои личные проекты")
+    db.delete_project(project["id"], config)
+
+
+def create_org_user(
+    ctx: UserContext,
+    username: str,
+    password: str,
+    role: str,
+    project_slugs: List[str],
+) -> Dict[str, Any]:
+    config = load_config()
+    user = db.create_user(ctx.org_id, username, password, role=role, config=config)
+    if role == "user" and project_slugs:
+        projects = db.list_org_projects(ctx.org_id, config)
+        slug_to_id = {p["slug"]: p["id"] for p in projects}
+        project_ids = [slug_to_id[s] for s in project_slugs if s in slug_to_id]
+        db.set_user_projects(user["id"], project_ids, config)
+    user_row = db.get_user_by_id(user["id"], config)
+    return user_to_dict(_build_user_context(user_row, config))
+
+
+def update_user_projects(ctx: UserContext, user_id: int, project_slugs: List[str]) -> Dict[str, Any]:
+    config = load_config()
+    target = db.get_user_by_id(user_id, config)
+    if not target or target["org_id"] != ctx.org_id:
+        raise ValueError("Пользователь не найден")
+    if target["role"] in ("admin", "director"):
+        return user_to_dict(_build_user_context(target, config))
+
+    projects = db.list_org_projects(ctx.org_id, config)
+    slug_to_id = {p["slug"]: p["id"] for p in projects}
+    project_ids = [slug_to_id[s] for s in project_slugs if s in slug_to_id]
+    db.set_user_projects(user_id, project_ids, config)
+    updated = db.get_user_by_id(user_id, config)
+    return user_to_dict(_build_user_context(updated, config))
diff --git a/backend/main.py b/backend/main.py
index bd30eb7..477d67e 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -1,88 +1,91 @@
 """FastAPI backend для сервиса транскрибации."""
 
 import json
-import os
 import sys
 from contextlib import asynccontextmanager
 from pathlib import Path
-from typing import Any, Dict, List, Optional
+from typing import List, Optional
 
-from fastapi import FastAPI, File, UploadFile, WebSocket, WebSocketDisconnect
+from fastapi import Depends, FastAPI, File, Form, HTTPException, UploadFile, WebSocket, WebSocketDisconnect
 from fastapi.middleware.cors import CORSMiddleware
-from fastapi.responses import FileResponse, PlainTextResponse, HTMLResponse
+from fastapi.responses import FileResponse, HTMLResponse
 from fastapi.staticfiles import StaticFiles
 
+from backend.auth.deps import get_current_user, get_user_from_token, require_admin
+from backend.auth.models import UserContext
+from backend.auth.routes import admin_router, router as auth_router
+from backend.auth import database as auth_db
+from backend.auth.service import ensure_project_access, list_accessible_projects
+from backend.paths import org_meetings_dir, org_rag_index_dir, resolve_meeting_path
 from backend.queue import (
-    UPLOAD_DIR,
-    PROCESSED_DIR,
-    save_upload,
+    delete_folder,
     get_all_tasks,
+    get_download_path,
+    get_processed_tree,
     get_queue_info,
     get_task_status,
-    get_processed_tree,
     read_file_content,
+    save_upload,
     set_progress_callback,
     start_workers,
     stop_workers,
 )
 
-# Добавляем корень проекта в путь, чтобы импортировать src.rag
 sys.path.insert(0, str(Path(__file__).parent.parent))
 from src.config import load_config, resolve_opencode_credentials
-from src.rag.indexer import get_project_names
-from src.rag.parser import parse_project_from_filename
-from src.rag.query import rag_chat, retrieve_context
+from src.rag.formatter import format_global_document
+from src.rag.indexer import get_project_names, index_meeting
+from src.rag.query import rag_chat
+
+STATIC_DIR = Path(__file__).parent / "static"
+
 
-# WebSocket менеджер
 class ConnectionManager:
     def __init__(self):
-        self.active_connections: List[WebSocket] = []
-    
-    async def connect(self, websocket: WebSocket):
+        self.active_connections: list[tuple[WebSocket, Optional[UserContext]]] = []
+
+    async def connect(self, websocket: WebSocket, user: Optional[UserContext] = None):
         await websocket.accept()
-        self.active_connections.append(websocket)
-    
+        self.active_connections.append((websocket, user))
+
     def disconnect(self, websocket: WebSocket):
-        if websocket in self.active_connections:
-            self.active_connections.remove(websocket)
-    
+        self.active_connections = [(ws, u) for ws, u in self.active_connections if ws is not websocket]
+
+    def set_user(self, websocket: WebSocket, user: UserContext):
+        self.active_connections = [(ws, user if ws is websocket else u) for ws, u in self.active_connections]
+
     async def broadcast(self, message: dict):
-        for conn in self.active_connections:
+        for conn, _user in self.active_connections:
             try:
                 await conn.send_json(message)
             except Exception:
                 pass
 
-manager = ConnectionManager()
 
-# Устанавливаем callback для отправки прогресса через WebSocket
+manager = ConnectionManager()
 set_progress_callback(manager.broadcast)
 
 
 @asynccontextmanager
 async def lifespan(app: FastAPI):
-    """Управление жизненным циклом приложения."""
     config = load_config()
+    auth_db.init_db(config)
+    auth_db.bootstrap_from_config(config)
+    org_slug = config.get("auth", {}).get("bootstrap", {}).get("org_slug", "merakom")
+    auth_db.migrate_legacy_data(org_slug)
+
     queue_cfg = config.get("queue", {})
     transcribe_workers = int(queue_cfg.get("transcribe_workers", 2))
     postprocess_workers = int(queue_cfg.get("postprocess_workers", 1))
     print("🚀 Запуск рабочих процессов...")
-    start_workers(
-        transcribe_workers=transcribe_workers,
-        postprocess_workers=postprocess_workers,
-    )
+    start_workers(transcribe_workers=transcribe_workers, postprocess_workers=postprocess_workers)
     yield
     print("🛑 Остановка рабочих процессов...")
     stop_workers()
 
 
-app = FastAPI(
-    title="Transcription Service",
-    version="1.0.0",
-    lifespan=lifespan,
-)
+app = FastAPI(title="Transcription Service", version="2.0.0", lifespan=lifespan)
 
-# CORS
 app.add_middleware(
     CORSMiddleware,
     allow_origins=["*"],
@@ -91,84 +94,132 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
+app.include_router(auth_router)
+app.include_router(admin_router)
+
+
+def _org_index_dir(user: UserContext) -> Path:
+    return org_rag_index_dir(user.org_slug)
+
+
+async def _list_rag_project_slugs(user: UserContext) -> List[str]:
+    projects = await get_project_names(_org_index_dir(user))
+    return user.filter_projects(projects)
+
+
+async def _rag_chat_for_user(user: UserContext, question: str, history: list, project_name: Optional[str], mode: str):
+    if project_name:
+        ensure_project_access(user, project_name)
+    elif not user.can_global_search():
+        raise HTTPException(status_code=403, detail="Глобальный поиск доступен только администратору")
+
+    config = load_config()
+    rag_cfg = config.get("rag", {})
+    api_key, base_url = resolve_opencode_credentials(config)
+    return await rag_chat(
+        question=question,
+        working_dir_base=_org_index_dir(user),
+        history=history,
+        api_key=api_key,
+        project_name=project_name,
+        base_url=base_url,
+        chat_model=rag_cfg.get("chat_model", "deepseek-v4-flash-free"),
+        mode=mode,
+        index_model=rag_cfg.get("index_model", "mimo-v2.5-free"),
+    )
 
-# === API Endpoints ===
 
 @app.get("/", response_class=HTMLResponse)
 async def root():
-    """Главная страница."""
-    index_path = Path(__file__).parent / "static" / "index.html"
+    index_path = STATIC_DIR / "index.html"
     if index_path.exists():
         return index_path.read_text(encoding="utf-8")
-    return "<h1>Transcription Service</h1><p>Frontend not built</p>"
+    return "<h1>Transcription Service</h1>"
+
+
+@app.get("/login", response_class=HTMLResponse)
+async def login_page():
+    login_path = STATIC_DIR / "login.html"
+    if login_path.exists():
+        return login_path.read_text(encoding="utf-8")
+    return "<h1>Login page missing</h1>"
 
 
 @app.post("/upload")
-async def upload_file(file: UploadFile = File(...)):
-    """Загружает файл и добавляет в очередь обработки."""
+async def upload_file(
+    file: UploadFile = File(...),
+    project: str = Form(...),
+    user: UserContext = Depends(get_current_user),
+):
     content = await file.read()
-    task_id, _ = await save_upload(content, file.filename or "upload.bin")
+    try:
+        task_id, _ = await save_upload(content, file.filename or "upload.bin", user, project)
+    except PermissionError as e:
+        raise HTTPException(status_code=403, detail=str(e)) from e
 
     return {
         "task_id": task_id,
         "file": file.filename,
+        "project": project,
         "status": "queued",
         "message": "Файл добавлен в очередь обработки",
-        "queue": get_queue_info(),
+        "queue": get_queue_info(user),
     }
 
 
 @app.post("/upload-batch")
-async def upload_batch(files: List[UploadFile] = File(...)):
-    """Загружает несколько файлов пакетно — все ставятся в очередь."""
+async def upload_batch(
+    files: List[UploadFile] = File(...),
+    project: str = Form(...),
+    user: UserContext = Depends(get_current_user),
+):
     if not files:
         return {"error": "Не переданы файлы", "uploaded": 0, "tasks": []}
 
     results = []
     for file in files:
         content = await file.read()
-        task_id, _ = await save_upload(content, file.filename or "upload.bin")
-        results.append({
-            "task_id": task_id,
-            "file": file.filename,
-            "status": "queued",
-        })
+        try:
+            task_id, _ = await save_upload(content, file.filename or "upload.bin", user, project)
+        except PermissionError as e:
+            raise HTTPException(status_code=403, detail=str(e)) from e
+        results.append({"task_id": task_id, "file": file.filename, "project": project, "status": "queued"})
 
     return {
         "uploaded": len(results),
         "tasks": results,
-        "queue": get_queue_info(),
+        "queue": get_queue_info(user),
         "message": f"{len(results)} файл(ов) добавлено в очередь",
     }
 
 
 @app.websocket("/ws")
 async def websocket_endpoint(websocket: WebSocket):
-    """WebSocket для получения прогресса обработки."""
-    await manager.connect(websocket)
+    token = websocket.query_params.get("token")
+    user = get_user_from_token(token)
+    if not user:
+        await websocket.close(code=4401)
+        return
+
+    await manager.connect(websocket, user)
     try:
         while True:
-            # Ждём сообщения от клиента (ping/keepalive)
             data = await websocket.receive_text()
             msg = json.loads(data)
-            
+
             if msg.get("action") == "get_tasks":
-                tasks = get_all_tasks()
                 await websocket.send_json({
                     "type": "tasks_list",
-                    "tasks": tasks,
-                    "queue": get_queue_info(),
+                    "tasks": get_all_tasks(user),
+                    "queue": get_queue_info(user),
                 })
             elif msg.get("action") == "get_tree":
-                tree = get_processed_tree()
                 await websocket.send_json({
                     "type": "file_tree",
-                    "tree": tree,
+                    "tree": get_processed_tree(user),
                 })
-            elif msg.get("action") == "rag_query":
-                await _handle_rag_query(websocket, msg)
-            elif msg.get("action") == "rag_query_global":
-                await _handle_rag_query(websocket, msg)
+            elif msg.get("action") in ("rag_query", "rag_query_global"):
+                await _handle_rag_query_ws(websocket, msg, user)
     except WebSocketDisconnect:
         manager.disconnect(websocket)
     except Exception:
@@ -176,202 +227,126 @@ async def websocket_endpoint(websocket: WebSocket):
 
 
 @app.get("/api/tasks")
-async def api_tasks():
-    """Возвращает список всех задач."""
-    return {"tasks": get_all_tasks(), "queue": get_queue_info()}
+async def api_tasks(user: UserContext = Depends(get_current_user)):
+    return {"tasks": get_all_tasks(user), "queue": get_queue_info(user)}
 
 
 @app.get("/api/tasks/{task_id}")
-async def api_task(task_id: str):
-    """Возвращает статус конкретной задачи."""
-    status = get_task_status(task_id)
+async def api_task(task_id: str, user: UserContext = Depends(get_current_user)):
+    status = get_task_status(task_id, user)
     if not status:
         return {"error": "Task not found"}
     return status
 
 
 @app.get("/api/files")
-async def api_files():
-    """Возвращает дерево обработанных файлов."""
-    return {"tree": get_processed_tree()}
+async def api_files(user: UserContext = Depends(get_current_user)):
+    return {"tree": get_processed_tree(user)}
 
 
 @app.get("/api/files/content")
-async def api_file_content(path: str):
-    """Возвращает содержимое файла."""
+async def api_file_content(path: str, user: UserContext = Depends(get_current_user)):
     try:
-        content = read_file_content(path)
+        content = read_file_content(user, path)
         return {"content": content, "path": path}
+    except PermissionError as e:
+        raise HTTPException(status_code=403, detail=str(e)) from e
     except Exception as e:
         return {"error": str(e)}
 
 
 @app.get("/api/files/download")
-async def api_download(path: str):
-    """Скачивает файл."""
-    file_path = PROCESSED_DIR / path
-    if not file_path.exists():
-        return {"error": "File not found"}
-    return FileResponse(file_path, filename=file_path.name)
-
-
-import shutil
-
-@app.delete("/api/folders/{folder_name}")
-async def api_delete_folder(folder_name: str):
-    """Удаляет папку с обработанными файлами."""
-    folder_path = PROCESSED_DIR / folder_name
-    if not folder_path.exists():
-        return {"error": "Folder not found"}
+async def api_download(path: str, user: UserContext = Depends(get_current_user)):
     try:
-        shutil.rmtree(folder_path)
-        return {"deleted": folder_name}
+        file_path = get_download_path(user, path)
+        return FileResponse(file_path, filename=file_path.name)
+    except PermissionError as e:
+        raise HTTPException(status_code=403, detail=str(e)) from e
     except Exception as e:
         return {"error": str(e)}
 
 
-# === RAG / Chat API ===
+@app.delete("/api/folders/{folder_name:path}")
+async def api_delete_folder(folder_name: str, user: UserContext = Depends(get_current_user)):
+    try:
+        delete_folder(user, folder_name)
+        return {"deleted": folder_name}
+    except PermissionError as e:
+        raise HTTPException(status_code=403, detail=str(e)) from e
+    except Exception as e:
+        return {"error": str(e)}
+
 
 @app.get("/api/rag/projects")
-async def api_rag_projects():
-    """Возвращает список проектов с RAG-индексами."""
+async def api_rag_projects(user: UserContext = Depends(get_current_user)):
     try:
-        config = load_config()
-        rag_cfg = config.get("rag", {})
-        index_dir = Path(rag_cfg.get("project_index_dir", "./processed/lightrag_caches"))
-        projects = await get_project_names(index_dir)
-        return {"projects": projects}
+        db_projects = {p["slug"] for p in list_accessible_projects(user)}
+        indexed = await _list_rag_project_slugs(user)
+        merged = sorted(db_projects | set(indexed))
+        if not user.is_admin:
+            merged = user.filter_projects(merged)
+        return {"projects": merged}
     except Exception as e:
         return {"error": str(e), "projects": []}
 
 
 @app.post("/api/rag/query")
-async def api_rag_query(payload: dict):
-    """Запрос к чат-боту по конкретному проекту."""
+async def api_rag_query(payload: dict, user: UserContext = Depends(get_current_user)):
     try:
-        config = load_config()
-        rag_cfg = config.get("rag", {})
-        index_dir = Path(rag_cfg.get("project_index_dir", "./processed/lightrag_caches"))
-        api_key, base_url = resolve_opencode_credentials(config)
-        chat_model = rag_cfg.get("chat_model", "deepseek-v4-flash-free")
-        index_model = rag_cfg.get("index_model", "mimo-v2.5-free")
-        mode = payload.get("mode", "hybrid")
-
-        result = await rag_chat(
-            question=payload.get("question", ""),
-            working_dir_base=index_dir,
-            history=payload.get("history", []),
-            api_key=api_key,
-            project_name=payload.get("project"),
-            base_url=base_url,
-            chat_model=chat_model,
-            mode=mode,
-            index_model=index_model,
+        result = await _rag_chat_for_user(
+            user,
+            payload.get("question", ""),
+            payload.get("history", []),
+            payload.get("project"),
+            payload.get("mode", "hybrid"),
         )
-        return {
-            "answer": result["answer"],
-            "context": result["context"],
-            "project": result["project"],
-        }
+        return {"answer": result["answer"], "context": result["context"], "project": result["project"]}
+    except HTTPException:
+        raise
+    except PermissionError as e:
+        raise HTTPException(status_code=403, detail=str(e)) from e
     except Exception as e:
         return {"error": str(e)}
 
 
 @app.post("/api/rag/query-global")
-async def api_rag_query_global(payload: dict):
-    """Глобальный запрос ко всем проектам."""
+async def api_rag_query_global(payload: dict, user: UserContext = Depends(get_current_user)):
     try:
-        config = load_config()
-        rag_cfg = config.get("rag", {})
-        index_dir = Path(rag_cfg.get("project_index_dir", "./processed/lightrag_caches"))
-        api_key, base_url = resolve_opencode_credentials(config)
-        chat_model = rag_cfg.get("chat_model", "deepseek-v4-flash-free")
-        index_model = rag_cfg.get("index_model", "mimo-v2.5-free")
-        mode = payload.get("mode", "hybrid")
-
-        result = await rag_chat(
-            question=payload.get("question", ""),
-            working_dir_base=index_dir,
-            history=payload.get("history", []),
-            api_key=api_key,
-            project_name=None,
-            base_url=base_url,
-            chat_model=chat_model,
-            mode=mode,
-            index_model=index_model,
+        result = await _rag_chat_for_user(
+            user,
+            payload.get("question", ""),
+            payload.get("history", []),
+            None,
+            payload.get("mode", "hybrid"),
         )
-        return {
-            "answer": result["answer"],
-            "context": result["context"],
-            "project": None,
-        }
+        return {"answer": result["answer"], "context": result["context"], "project": None}
+    except HTTPException:
+        raise
     except Exception as e:
         return {"error": str(e)}
 
 
-@app.get("/api/rag/tasks")
-async def api_rag_tasks(project: Optional[str] = None):
-    """Возвращает action items из RAG."""
+@app.post("/api/rag/index/{folder_name:path}")
+async def api_rag_index_folder(folder_name: str, user: UserContext = Depends(get_current_user)):
     try:
-        config = load_config()
-        rag_cfg = config.get("rag", {})
-        index_dir = Path(rag_cfg.get("project_index_dir", "./processed/lightrag_caches"))
-        api_key, base_url = resolve_opencode_credentials(config)
-        chat_model = rag_cfg.get("chat_model", "deepseek-v4-flash-free")
-        index_model = rag_cfg.get("index_model", "mimo-v2.5-free")
-
-        question = "Перечисли все action items, задачи и ответственных из протоколов."
-        if project:
-            question = f"Перечисли все action items, задачи и ответственных по проекту {project}."
-
-        result = await rag_chat(
-            question=question,
-            working_dir_base=index_dir,
-            history=[],
-            api_key=api_key,
-            project_name=project,
-            base_url=base_url,
-            chat_model=chat_model,
-            mode="hybrid",
-            index_model=index_model,
-        )
-        return {
-            "tasks": result["answer"],
-            "project": project,
-        }
-    except Exception as e:
-        return {"error": str(e)}
-
-
-@app.post("/api/rag/index/{folder_name}")
-async def api_rag_index_folder(folder_name: str):
-    """Принудительная переиндексация папки с обработанным совещанием."""
-    try:
-        folder_path = PROCESSED_DIR / folder_name
+        folder_path = resolve_meeting_path(user.org_slug, folder_name)
         if not folder_path.exists():
             return {"error": "Folder not found"}
 
-        # Ищем .txt файл с протоколом
+        from backend.queue import _folder_project_slug
+        project = _folder_project_slug(folder_path.name, org_meetings_dir(user.org_slug))
+        if not project:
+            return {"error": "Project metadata not found"}
+        ensure_project_access(user, project)
+
         txt_files = list(folder_path.glob("*.txt"))
         if not txt_files:
             return {"error": "No .txt protocol found in folder"}
 
-        txt_path = txt_files[0]
-        doc_text = txt_path.read_text(encoding="utf-8")
-
-        # Определяем проект из имени папки
-        project = parse_project_from_filename(folder_name)
-
+        doc_text = txt_files[0].read_text(encoding="utf-8")
         config = load_config()
         rag_cfg = config.get("rag", {})
-        index_dir = Path(rag_cfg.get("project_index_dir", "./processed/lightrag_caches"))
-        index_model = rag_cfg.get("index_model", "mimo-v2.5-free")
         api_key, base_url = resolve_opencode_credentials(config)
-
-        from src.rag.indexer import index_meeting
-        from src.rag.formatter import format_global_document
-
-        # Для переиндексации используем простую заглушку метаданных
         metadata = {"project": project, "section": "Общие вопросы", "topic": "Переиндексация"}
         global_doc_text = format_global_document(doc_text, metadata)
 
@@ -379,54 +354,47 @@ async def api_rag_index_folder(folder_name: str):
             doc_text=doc_text,
             global_doc_text=global_doc_text,
             project_name=project,
-            working_dir_base=index_dir,
-            model=index_model,
+            working_dir_base=_org_index_dir(user),
+            model=rag_cfg.get("index_model", "mimo-v2.5-free"),
             api_key=api_key,
             base_url=base_url,
         )
-
         return {"indexed": folder_name, "project": project}
+    except PermissionError as e:
+        raise HTTPException(status_code=403, detail=str(e)) from e
     except Exception as e:
         return {"error": str(e)}
 
 
-# === WebSocket Chat Actions ===
-
-async def _handle_rag_query(websocket: WebSocket, msg: dict):
-    """Обрабатывает rag_query через WebSocket."""
+async def _handle_rag_query_ws(websocket: WebSocket, msg: dict, user: UserContext):
     try:
-        config = load_config()
-        rag_cfg = config.get("rag", {})
-        index_dir = Path(rag_cfg.get("project_index_dir", "./processed/lightrag_caches"))
-        api_key, base_url = resolve_opencode_credentials(config)
-        chat_model = rag_cfg.get("chat_model", "deepseek-v4-flash-free")
-        index_model = rag_cfg.get("index_model", "mimo-v2.5-free")
-        mode = msg.get("mode", "hybrid")
-
-        result = await rag_chat(
-            question=msg.get("question", ""),
-            working_dir_base=index_dir,
-            history=msg.get("history", []),
-            api_key=api_key,
-            project_name=msg.get("project"),
-            base_url=base_url,
-            chat_model=chat_model,
-            mode=mode,
-            index_model=index_model,
+        project = msg.get("project")
+        if msg.get("action") == "rag_query_global":
+            project = None
+        result = await _rag_chat_for_user(
+            user,
+            msg.get("question", ""),
+            msg.get("history", []),
+            project,
+            msg.get("mode", "hybrid"),
         )
-
         await websocket.send_json({
             "type": "rag_response",
             "answer": result["answer"],
             "context": result["context"],
             "project": result["project"],
         })
+    except HTTPException as e:
+        await websocket.send_json({"type": "rag_error", "error": e.detail})
+    except PermissionError as e:
+        await websocket.send_json({"type": "rag_error", "error": str(e)})
     except Exception as e:
-        await websocket.send_json({
-            "type": "rag_error",
-            "error": str(e),
-        })
+        await websocket.send_json({"type": "rag_error", "error": str(e)})
 
 
-# Статические файлы
-app.mount("/static", StaticFiles(directory="backend/static"), name="static")
+@app.get("/api/health")
+async def health():
+    return {"status": "ok"}
+
+
+app.mount("/static", StaticFiles(directory=str(STATIC_DIR)), name="static")
diff --git a/backend/paths.py b/backend/paths.py
new file mode 100644
index 0000000..3b3b04a
--- /dev/null
+++ b/backend/paths.py
@@ -0,0 +1,49 @@
+"""Org-scoped filesystem paths."""
+
+import json
+from datetime import datetime
+from pathlib import Path
+
+DATA_ROOT = Path("data")
+UPLOAD_ROOT = Path("uploads")
+PROCESSED_ROOT = Path("processed")
+RAG_CACHE_DIRNAME = "lightrag_caches"
+MEETINGS_DIRNAME = "meetings"
+
+
+def org_upload_dir(org_slug: str, user_id: int) -> Path:
+    path = UPLOAD_ROOT / org_slug / str(user_id)
+    path.mkdir(parents=True, exist_ok=True)
+    return path
+
+
+def org_meetings_dir(org_slug: str) -> Path:
+    path = PROCESSED_ROOT / org_slug / MEETINGS_DIRNAME
+    path.mkdir(parents=True, exist_ok=True)
+    return path
+
+
+def org_rag_index_dir(org_slug: str) -> Path:
+    path = PROCESSED_ROOT / org_slug / RAG_CACHE_DIRNAME
+    path.mkdir(parents=True, exist_ok=True)
+    return path
+
+
+def resolve_meeting_path(org_slug: str, rel_path: str) -> Path:
+    """Resolve relative path under org meetings dir; reject traversal."""
+    base = org_meetings_dir(org_slug).resolve()
+    full = (base / rel_path).resolve()
+    if not str(full).startswith(str(base)):
+        raise ValueError("Invalid path")
+    return full
+
+
+def write_folder_project_meta(folder_path: Path, project_slug: str) -> None:
+    meta = {
+        "project_slug": project_slug.strip().lower(),
+        "created_at": datetime.now().isoformat(),
+    }
+    (folder_path / ".project.json").write_text(
+        json.dumps(meta, ensure_ascii=False),
+        encoding="utf-8",
+    )
diff --git a/backend/queue.py b/backend/queue.py
index 3817890..9c970ca 100644
--- a/backend/queue.py
+++ b/backend/queue.py
@@ -1,4 +1,4 @@
-"""Фоновая очередь: транскрибация и post-processing (summary/RAG) разделены."""
+"""Фоновая очередь: транскрибация и post-processing с org/project изоляцией."""
 
 import asyncio
 import json
@@ -11,6 +11,9 @@ from typing import Any, Callable, Dict, List, Optional
 
 sys.path.insert(0, str(Path(__file__).parent.parent))
 
+from backend.auth.models import UserContext
+from backend.auth.service import ensure_project_access
+from backend.paths import org_meetings_dir, org_rag_index_dir, org_upload_dir, resolve_meeting_path, write_folder_project_meta
 from src.audio_utils import prepare_audio_input
 from src.config import load_config, resolve_opencode_credentials
 from src.document import build_document
@@ -22,13 +25,7 @@ from src.rag.formatter import (
     format_summary_markdown,
 )
 from src.rag.indexer import index_meeting
-from src.rag.parser import classify_meeting, generate_meeting_brief, parse_project_from_filename
-
-
-UPLOAD_DIR = Path("uploads")
-PROCESSED_DIR = Path("processed")
-UPLOAD_DIR.mkdir(exist_ok=True)
-PROCESSED_DIR.mkdir(exist_ok=True)
+from src.rag.parser import classify_meeting, generate_meeting_brief
 
 tasks: Dict[str, Dict[str, Any]] = {}
 _progress_callback: Optional[Callable] = None
@@ -42,6 +39,33 @@ def set_progress_callback(callback: Callable):
     _progress_callback = callback
 
 
+def _task_visible(task: Dict[str, Any], user: UserContext) -> bool:
+    if task.get("org_slug") != user.org_slug:
+        return False
+    if user.has_all_projects_access:
+        return True
+    return task.get("user_id") == user.user_id
+
+
+def _filter_tasks_for_user(user: UserContext) -> List[Dict[str, Any]]:
+    return [t for t in tasks.values() if _task_visible(t, user)]
+
+
+def _filter_queue_info(user: UserContext) -> Dict[str, Any]:
+    visible = _filter_tasks_for_user(user)
+    queued = sum(1 for t in visible if t.get("status") == "queued")
+    processing = sum(1 for t in visible if t.get("status") == "processing")
+    postprocessing = sum(1 for t in visible if t.get("status") == "postprocessing")
+    return {
+        "queued": queued,
+        "processing": processing,
+        "postprocessing": postprocessing,
+        "pending_transcribe": _transcribe_queue.qsize(),
+        "pending_postprocess": _postprocess_queue.qsize(),
+        "pending_in_queue": _transcribe_queue.qsize(),
+    }
+
+
 async def _send_progress(task_id: str, progress: int, message: str, status: str, result=None, error=None):
     if _progress_callback:
         try:
@@ -52,6 +76,7 @@ async def _send_progress(task_id: str, progress: int, message: str, status: str,
                 "message": message,
                 "status": status,
                 "file": task_info.get("file", ""),
+                "project": task_info.get("project_slug", ""),
                 "queue_position": task_info.get("queue_position"),
                 "result": result,
                 "error": error,
@@ -64,7 +89,7 @@ def _cleanup_upload(file_path: Path):
     if not file_path.exists():
         return
     parent = file_path.parent
-    if parent != UPLOAD_DIR and parent.name.startswith("task_"):
+    if parent.name.startswith("task_"):
         shutil.rmtree(parent, ignore_errors=True)
     else:
         file_path.unlink(missing_ok=True)
@@ -85,8 +110,12 @@ def _default_metadata(project: str, segments: List[Dict[str, Any]]) -> Dict[str,
 
 
 async def process_transcription(file_path: Path, task_id: str):
-    """Этап 1: WhisperX + docx/md. После — в очередь summary/RAG."""
-    display_name = tasks.get(task_id, {}).get("file", file_path.name)
+    task = tasks.get(task_id, {})
+    display_name = task.get("file", file_path.name)
+    org_slug = task["org_slug"]
+    project_slug = task["project_slug"]
+    meetings_dir = org_meetings_dir(org_slug)
+
     tasks[task_id].update({
         "status": "processing",
         "progress": 0,
@@ -113,8 +142,9 @@ async def process_transcription(file_path: Path, task_id: str):
         stem = Path(display_name).stem
         timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
         folder_name = f"{stem}_{timestamp}"
-        output_dir = PROCESSED_DIR / folder_name
+        output_dir = meetings_dir / folder_name
         await asyncio.to_thread(output_dir.mkdir, parents=True, exist_ok=True)
+        await asyncio.to_thread(write_folder_project_meta, output_dir, project_slug)
 
         docx_path = output_dir / f"{stem}.docx"
         md_path = output_dir / f"{stem}.md"
@@ -130,22 +160,26 @@ async def process_transcription(file_path: Path, task_id: str):
 
         await asyncio.to_thread(_cleanup_upload, file_path)
 
+        rel_dir = str(output_dir.relative_to(meetings_dir))
         post_position = _postprocess_queue.qsize() + 1
+        result_data = {
+            "docx": str(docx_path),
+            "md": str(md_path),
+            "dir": str(output_dir),
+            "rel_dir": rel_dir,
+            "project": project_slug,
+        }
         tasks[task_id].update({
             "status": "postprocessing",
             "progress": 70,
             "message": f"Транскрибация готова. Summary/RAG в очереди (№{post_position})",
-            "result": {
-                "docx": str(docx_path),
-                "md": str(md_path),
-                "dir": str(output_dir),
-            },
+            "result": result_data,
         })
         await _send_progress(
             task_id, 70,
             f"Транскрибация готова. Summary/RAG в очереди (№{post_position})",
             "postprocessing",
-            result=tasks[task_id]["result"],
+            result=result_data,
         )
 
         await _postprocess_queue.put({
@@ -154,10 +188,10 @@ async def process_transcription(file_path: Path, task_id: str):
             "output_dir": str(output_dir),
             "stem": stem,
             "segments_path": str(segments_path),
-            "docx_path": str(docx_path),
-            "md_path": str(md_path),
+            "org_slug": org_slug,
+            "project_slug": project_slug,
         })
-        print(f"[Transcribe] Задача {task_id} передана в post-processing")
+        print(f"[Transcribe] {task_id} -> post-processing (project={project_slug})")
 
     except Exception as e:
         error_msg = str(e)
@@ -172,11 +206,12 @@ async def process_transcription(file_path: Path, task_id: str):
 
 
 async def process_postprocessing(job: Dict[str, Any]):
-    """Этап 2: summary, txt, RAG — не блокирует следующую транскрибацию."""
     task_id = job["task_id"]
     display_name = job["display_name"]
     stem = job["stem"]
     output_dir = Path(job["output_dir"])
+    org_slug = job["org_slug"]
+    project = job["project_slug"]
 
     summary_path = output_dir / f"{stem}_summary.md"
     txt_path = output_dir / f"{stem}.txt"
@@ -188,13 +223,13 @@ async def process_postprocessing(job: Dict[str, Any]):
     await _send_progress(task_id, 75, "Summary и индексация...", "postprocessing")
 
     result_data = dict(tasks[task_id].get("result") or {})
+    meetings_dir = org_meetings_dir(org_slug)
 
     try:
         segments = json.loads(Path(job["segments_path"]).read_text(encoding="utf-8"))
         config = load_config()
         rag_cfg = config.get("rag", {})
         api_key, base_url = resolve_opencode_credentials(config)
-        project = parse_project_from_filename(display_name)
         meeting_text = build_meeting_text_only(segments)
         metadata = _default_metadata(project, segments)
 
@@ -229,11 +264,7 @@ async def process_postprocessing(job: Dict[str, Any]):
                         chunk_size=summary_chunk_size,
                     )
                     summary_md = format_summary_markdown(metadata, brief, display_name)
-                    await asyncio.to_thread(
-                        summary_path.write_text,
-                        summary_md,
-                        encoding="utf-8",
-                    )
+                    await asyncio.to_thread(summary_path.write_text, summary_md, encoding="utf-8")
                     result_data["summary"] = str(summary_path)
 
                 doc_text = format_meeting_document(segments, metadata, display_name)
@@ -241,10 +272,11 @@ async def process_postprocessing(job: Dict[str, Any]):
                 result_data["txt"] = str(txt_path)
                 result_data["metadata"] = metadata
                 result_data["project"] = project
+                result_data["rel_dir"] = str(output_dir.relative_to(meetings_dir))
 
                 if rag_cfg.get("enabled", False) and rag_cfg.get("auto_index", True):
                     await _send_progress(task_id, 92, "Индексация в базу знаний...", "postprocessing")
-                    index_dir = Path(rag_cfg.get("project_index_dir", "./processed/lightrag_caches"))
+                    index_dir = org_rag_index_dir(org_slug)
                     global_doc_text = format_global_document(doc_text, metadata)
                     await index_meeting(
                         doc_text=doc_text,
@@ -265,6 +297,7 @@ async def process_postprocessing(job: Dict[str, Any]):
             doc_text = format_meeting_document(segments, metadata, display_name)
             await asyncio.to_thread(txt_path.write_text, doc_text, encoding="utf-8")
             result_data["txt"] = str(txt_path)
+            result_data["rel_dir"] = str(output_dir.relative_to(meetings_dir))
 
         await _send_progress(task_id, 100, "Обработка завершена", "completed", result=result_data)
         tasks[task_id].update({
@@ -291,7 +324,6 @@ async def _transcribe_worker_loop(worker_id: int):
     while True:
         try:
             task_id, file_path = await _transcribe_queue.get()
-            print(f"[Transcribe Worker {worker_id}] задача {task_id}")
             await process_transcription(file_path, task_id)
             _transcribe_queue.task_done()
         except asyncio.CancelledError:
@@ -305,7 +337,6 @@ async def _postprocess_worker_loop(worker_id: int):
     while True:
         try:
             job = await _postprocess_queue.get()
-            print(f"[Postprocess Worker {worker_id}] задача {job.get('task_id')}")
             await process_postprocessing(job)
             _postprocess_queue.task_done()
         except asyncio.CancelledError:
@@ -315,7 +346,6 @@ async def _postprocess_worker_loop(worker_id: int):
 
 
 def start_workers(transcribe_workers: int = 2, postprocess_workers: int = 1):
-    """Запускает пулы воркеров транскрибации и post-processing."""
     global _workers
     _workers.clear()
     for i in range(transcribe_workers):
@@ -330,10 +360,17 @@ def stop_workers():
         w.cancel()
 
 
-async def save_upload(content: bytes, filename: str) -> tuple[str, Path]:
+async def save_upload(
+    content: bytes,
+    filename: str,
+    user: UserContext,
+    project_slug: str,
+) -> tuple[str, Path]:
+    ensure_project_access(user, project_slug)
+    slug = project_slug.strip().lower()
     safe_name = Path(filename).name or "upload.bin"
     task_id = f"task_{datetime.now().strftime('%Y%m%d_%H%M%S')}_{uuid.uuid4().hex[:8]}"
-    task_dir = UPLOAD_DIR / task_id
+    task_dir = org_upload_dir(user.org_slug, user.user_id) / task_id
     task_dir.mkdir(parents=True, exist_ok=True)
     file_path = task_dir / safe_name
 
@@ -346,6 +383,10 @@ async def save_upload(content: bytes, filename: str) -> tuple[str, Path]:
         "progress": 0,
         "message": f"В очереди транскрибации (№{queue_position})",
         "file": safe_name,
+        "project_slug": slug,
+        "org_slug": user.org_slug,
+        "user_id": user.user_id,
+        "username": user.username,
         "queue_position": queue_position,
         "result": None,
         "error": None,
@@ -357,7 +398,9 @@ async def save_upload(content: bytes, filename: str) -> tuple[str, Path]:
     return task_id, file_path
 
 
-def get_queue_info() -> Dict[str, Any]:
+def get_queue_info(user: Optional[UserContext] = None) -> Dict[str, Any]:
+    if user:
+        return _filter_queue_info(user)
     queued = sum(1 for t in tasks.values() if t.get("status") == "queued")
     processing = sum(1 for t in tasks.values() if t.get("status") == "processing")
     postprocessing = sum(1 for t in tasks.values() if t.get("status") == "postprocessing")
@@ -371,11 +414,18 @@ def get_queue_info() -> Dict[str, Any]:
     }
 
 
-def get_task_status(task_id: str) -> Optional[Dict[str, Any]]:
-    return tasks.get(task_id)
+def get_task_status(task_id: str, user: Optional[UserContext] = None) -> Optional[Dict[str, Any]]:
+    task = tasks.get(task_id)
+    if not task:
+        return None
+    if user and not _task_visible(task, user):
+        return None
+    return task
 
 
-def get_all_tasks() -> List[Dict[str, Any]]:
+def get_all_tasks(user: Optional[UserContext] = None) -> List[Dict[str, Any]]:
+    if user:
+        return _filter_tasks_for_user(user)
     return list(tasks.values())
 
 
@@ -392,39 +442,84 @@ def _file_sort_key(file_info: Dict[str, Any]) -> tuple:
     return (4, name)
 
 
-def get_processed_tree() -> List[Dict[str, Any]]:
+def _folder_project_slug(folder_name: str, meetings_dir: Path) -> Optional[str]:
+    meta_path = meetings_dir / folder_name / ".project.json"
+    if meta_path.exists():
+        try:
+            data = json.loads(meta_path.read_text(encoding="utf-8"))
+            return data.get("project_slug")
+        except Exception:
+            pass
+    return None
+
+
+def get_processed_tree(user: UserContext) -> List[Dict[str, Any]]:
     tree = []
-    if not PROCESSED_DIR.exists():
+    meetings_dir = org_meetings_dir(user.org_slug)
+    if not meetings_dir.exists():
         return tree
 
-    skip_names = {"lightrag_caches", "lightrag_caches_test"}
     skip_suffixes = ("_segments.json",)
 
-    for item in sorted(PROCESSED_DIR.iterdir()):
-        if not item.is_dir() or item.name in skip_names:
+    for item in sorted(meetings_dir.iterdir()):
+        if not item.is_dir():
             continue
+        project_slug = _folder_project_slug(item.name, meetings_dir)
+        if project_slug and not user.can_access_project(project_slug):
+            continue
+
         files = []
         for f in sorted(item.iterdir(), key=lambda p: _file_sort_key({"name": p.name})):
-            if f.is_file() and not f.name.endswith(skip_suffixes):
+            if f.is_file() and not f.name.endswith(skip_suffixes) and f.name != ".project.json":
                 files.append({
                     "name": f.name,
-                    "path": str(f.relative_to(PROCESSED_DIR)),
+                    "path": str(f.relative_to(meetings_dir)),
                     "size": f.stat().st_size,
                     "ext": f.suffix.lower(),
                     "kind": "summary" if "_summary" in f.name else "protocol",
                 })
         tree.append({
             "name": item.name,
-            "path": str(item.relative_to(PROCESSED_DIR)),
+            "path": str(item.relative_to(meetings_dir)),
+            "project": project_slug,
             "files": files,
             "created": datetime.fromtimestamp(item.stat().st_ctime).isoformat(),
         })
     return tree
 
 
-def read_file_content(rel_path: str) -> str:
-    full_path = PROCESSED_DIR / rel_path
+def read_file_content(user: UserContext, rel_path: str) -> str:
+    full_path = resolve_meeting_path(user.org_slug, rel_path)
     if not full_path.exists() or not full_path.is_file():
         raise FileNotFoundError(f"Файл не найден: {rel_path}")
+
+    folder = full_path.parent.name
+    meetings_dir = org_meetings_dir(user.org_slug)
+    project_slug = _folder_project_slug(folder, meetings_dir)
+    if project_slug and not user.can_access_project(project_slug):
+        raise PermissionError("Нет доступа к этому файлу")
+
     with open(full_path, "r", encoding="utf-8") as f:
         return f.read()
+
+
+def get_download_path(user: UserContext, rel_path: str) -> Path:
+    full_path = resolve_meeting_path(user.org_slug, rel_path)
+    if not full_path.exists() or not full_path.is_file():
+        raise FileNotFoundError(f"Файл не найден: {rel_path}")
+    folder = full_path.parent.name
+    meetings_dir = org_meetings_dir(user.org_slug)
+    project_slug = _folder_project_slug(folder, meetings_dir)
+    if project_slug and not user.can_access_project(project_slug):
+        raise PermissionError("Нет доступа к этому файлу")
+    return full_path
+
+
+def delete_folder(user: UserContext, folder_rel: str) -> None:
+    folder_path = resolve_meeting_path(user.org_slug, folder_rel)
+    if not folder_path.is_dir():
+        raise FileNotFoundError("Folder not found")
+    project_slug = _folder_project_slug(folder_path.name, org_meetings_dir(user.org_slug))
+    if project_slug and not user.can_access_project(project_slug):
+        raise PermissionError("Нет доступа к этой папке")
+    shutil.rmtree(folder_path)
diff --git a/backend/static/app.js b/backend/static/app.js
index 3a5fe1a..47553ec 100644
--- a/backend/static/app.js
+++ b/backend/static/app.js
@@ -10,21 +10,158 @@ class TranscriptionApp {
         this.renderTimeout = null;
         this.chatHistory = [];
         this.chatProjects = [];
+        this.uploadProjects = [];
         this.isChatThinking = false;
+        this.user = null;
         this.init();
     }
 
     init() {
-        this.connectWebSocket();
-        this.setupUpload();
-        this.setupChat();
-        this.loadChatHistory();
+        if (!Auth.requireAuth()) return;
+        this.user = Auth.getUser();
+        this.setupUserBar();
+        this.loadProjects().then(() => {
+            this.connectWebSocket();
+            this.setupProjectsWorkspace();
+            this.setupUpload();
+            this.setupChat();
+            this.setupAdmin();
+            this.loadChatHistory();
+        });
+    }
+
+    setupUserBar() {
+        const info = document.getElementById('userInfo');
+        const logoutBtn = document.getElementById('logoutBtn');
+        if (info && this.user) {
+            const roleLabel = {
+                admin: 'администратор',
+                director: 'директор',
+                user: 'пользователь',
+            }[this.user.role] || this.user.role;
+            info.textContent = `${this.user.username} · ${this.user.org_name} · ${roleLabel}`;
+        }
+        logoutBtn?.addEventListener('click', () => Auth.logout());
+    }
+
+    downloadUrl(path) {
+        const token = encodeURIComponent(Auth.getToken() || '');
+        return `/api/files/download?path=${encodeURIComponent(path)}&token=${token}`;
+    }
+
+    async loadProjects() {
+        try {
+            const response = await Auth.apiFetch('/api/auth/projects');
+            const result = await response.json();
+            this.uploadProjects = result.projects || [];
+            this.renderMyProjectsList();
+            this.populateProjectSelect('uploadProjectSelect', this.uploadProjects, false);
+            await this.loadChatProjects();
+        } catch (e) {
+            console.error('Failed to load projects:', e);
+            this.showToast('Не удалось загрузить проекты', 'error');
+        }
+    }
+
+    populateProjectSelect(selectId, projects, includeGlobal) {
+        const select = document.getElementById(selectId);
+        if (!select) return;
+        select.innerHTML = '';
+        if (includeGlobal && this.user?.all_projects_access) {
+            const allOpt = document.createElement('option');
+            allOpt.value = '';
+            allOpt.textContent = 'Все проекты';
+            select.appendChild(allOpt);
+        }
+        projects.forEach(p => {
+            const opt = document.createElement('option');
+            opt.value = p.slug || p;
+            const scope = p.scope === 'personal' ? ' · мой' : (p.scope === 'org' ? ' · общий' : '');
+            opt.textContent = `${p.name || p.slug || p}${scope}`;
+            select.appendChild(opt);
+        });
+        if (!select.options.length) {
+            const opt = document.createElement('option');
+            opt.value = '';
+            opt.textContent = 'Нет доступных проектов';
+            select.appendChild(opt);
+        }
+    }
+
+    renderMyProjectsList() {
+        const container = document.getElementById('myProjectsList');
+        if (!container) return;
+
+        const projects = this.uploadProjects || [];
+        if (!projects.length) {
+            container.innerHTML = '<p class="empty-state">Нет проектов. Создайте первый проект ниже.</p>';
+            return;
+        }
+
+        container.innerHTML = projects.map(p => {
+            const badge = p.scope === 'personal'
+                ? '<span class="project-badge personal">мой</span>'
+                : '<span class="project-badge org">общий</span>';
+            const deleteBtn = p.is_owner
+                ? `<button type="button" class="project-delete" data-slug="${this.escapeHtml(p.slug)}" title="Удалить">✕</button>`
+                : '';
+            return `
+                <div class="project-card">
+                    <div class="project-card-main">
+                        <strong>${this.escapeHtml(p.name || p.slug)}</strong>
+                        ${badge}
+                    </div>
+                    <span class="project-slug">${this.escapeHtml(p.slug)}</span>
+                    ${deleteBtn}
+                </div>
+            `;
+        }).join('');
+
+        container.querySelectorAll('.project-delete').forEach(btn => {
+            btn.addEventListener('click', () => this.deleteMyProject(btn.dataset.slug));
+        });
+    }
+
+    setupProjectsWorkspace() {
+        document.getElementById('createMyProjectForm')?.addEventListener('submit', async (e) => {
+            e.preventDefault();
+            const slug = document.getElementById('myProjectSlug').value.trim();
+            const name = document.getElementById('myProjectName').value.trim();
+            try {
+                const response = await Auth.apiFetch('/api/auth/projects', {
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify({ slug, name }),
+                });
+                const data = await response.json();
+                if (!response.ok) throw new Error(data.detail || 'Ошибка создания проекта');
+                this.showToast(`Проект «${data.project.name}» создан`, 'success');
+                e.target.reset();
+                await this.loadProjects();
+            } catch (err) {
+                this.showToast(err.message, 'error');
+            }
+        });
+    }
+
+    async deleteMyProject(slug) {
+        if (!confirm(`Удалить проект «${slug}»?\n\nИндекс RAG и файлы не удаляются автоматически.`)) return;
+        try {
+            const response = await Auth.apiFetch(`/api/auth/projects/${encodeURIComponent(slug)}`, {
+                method: 'DELETE',
+            });
+            const data = await response.json();
+            if (!response.ok) throw new Error(data.detail || 'Ошибка удаления');
+            this.showToast(`Проект «${slug}» удалён`, 'success');
+            await this.loadProjects();
+        } catch (err) {
+            this.showToast(err.message, 'error');
+        }
     }
 
     // ===== WebSocket =====
     connectWebSocket() {
-        const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
-        this.ws = new WebSocket(`${protocol}//${window.location.host}/ws`);
+        this.ws = new WebSocket(Auth.wsUrl('/ws'));
 
         this.ws.onopen = () => {
             console.log('WebSocket connected');
@@ -38,7 +175,12 @@ class TranscriptionApp {
             this.handleWebSocketMessage(data);
         };
 
-        this.ws.onclose = () => {
+        this.ws.onclose = (event) => {
+            if (event.code === 4401) {
+                Auth.clearSession();
+                window.location.href = '/login';
+                return;
+            }
             console.log('WebSocket disconnected, reconnecting in 3s...');
             setTimeout(() => this.connectWebSocket(), 3000);
         };
@@ -126,7 +268,14 @@ class TranscriptionApp {
     async handleFiles(files) {
         if (!files.length) return;
 
+        const project = document.getElementById('uploadProjectSelect')?.value;
+        if (!project) {
+            this.showToast('Выберите проект перед загрузкой', 'error');
+            return;
+        }
+
         const formData = new FormData();
+        formData.append('project', project);
         for (const file of files) {
             formData.append('files', file);
         }
@@ -134,7 +283,7 @@ class TranscriptionApp {
         try {
             this.showToast(`Загрузка ${files.length} файл(а)...`, 'info');
 
-            const response = await fetch('/upload-batch', {
+            const response = await Auth.apiFetch('/upload-batch', {
                 method: 'POST',
                 body: formData,
             });
@@ -273,7 +422,7 @@ class TranscriptionApp {
             const isDocx = file.ext === '.docx';
             const isTxt = file.ext === '.txt';
             const icon = isSummary ? '📋' : isMd ? '📝' : isDocx ? '📄' : isTxt ? '📃' : '📎';
-            const downloadUrl = `/api/files/download?path=${encodeURIComponent(file.path)}`;
+            const downloadUrl = this.downloadUrl(file.path);
             const cssClass = isSummary ? 'file-item file-summary' : 'file-item';
 
             if (isDocx) {
@@ -363,7 +512,7 @@ class TranscriptionApp {
 
     async deleteFolder(folderName, folderElement) {
         try {
-            const response = await fetch(`/api/folders/${encodeURIComponent(folderName)}`, {
+            const response = await Auth.apiFetch(`/api/folders/${encodeURIComponent(folderName)}`, {
                 method: 'DELETE',
             });
             const result = await response.json();
@@ -390,7 +539,7 @@ class TranscriptionApp {
 
         if (ext === '.md' || ext === '.txt') {
             try {
-                const response = await fetch(`/api/files/content?path=${encodeURIComponent(path)}`);
+                const response = await Auth.apiFetch(`/api/files/content?path=${encodeURIComponent(path)}`);
                 const result = await response.json();
 
                 if (result.error) {
@@ -406,7 +555,7 @@ class TranscriptionApp {
                     <div class="md-content">
                         <div class="md-header">
                             <span class="md-title">${this.escapeHtml(path)}</span>
-                            <a href="/api/files/download?path=${encodeURIComponent(path)}" 
+                            <a href="${this.downloadUrl(path)}" 
                                class="btn-download" download>⬇️ Скачать</a>
                         </div>
                         <div class="md-body">${bodyHtml}</div>
@@ -493,20 +642,20 @@ class TranscriptionApp {
 
     async loadChatProjects() {
         try {
-            const response = await fetch('/api/rag/projects');
+            const response = await Auth.apiFetch('/api/rag/projects');
             const result = await response.json();
-            const select = document.getElementById('chatProjectSelect');
-            select.innerHTML = '<option value="">Все проекты</option>';
-            if (result.projects) {
-                result.projects.forEach(p => {
-                    const opt = document.createElement('option');
-                    opt.value = p;
-                    opt.textContent = p;
-                    select.appendChild(opt);
-                });
+            const projects = (result.projects || []).map(p => (
+                typeof p === 'string' ? { slug: p, name: p } : p
+            ));
+            this.populateProjectSelect('chatProjectSelect', projects, true);
+            const hint = document.getElementById('chatHint');
+            if (hint) {
+                hint.textContent = this.user?.all_projects_access
+                    ? 'Выберите проект или «Все проекты» для поиска по организации.'
+                    : 'Выберите проект, к которому у вас есть доступ.';
             }
         } catch (e) {
-            console.error('Failed to load projects:', e);
+            console.error('Failed to load chat projects:', e);
         }
     }
 
@@ -520,6 +669,11 @@ class TranscriptionApp {
         const select = document.getElementById('chatProjectSelect');
         const project = select.value;
 
+        if (!project && !this.user?.all_projects_access) {
+            this.showToast('Выберите проект для поиска', 'error');
+            return;
+        }
+
         input.value = '';
         this.addChatBubble('user', question);
         this.setChatThinking(true);
@@ -629,6 +783,131 @@ class TranscriptionApp {
             this.chatHistory = [];
         }
     }
+
+    setupAdmin() {
+        if (!this.user?.is_admin) return;
+        const section = document.getElementById('adminSection');
+        if (section) section.hidden = false;
+        this.refreshAdminData();
+
+        document.getElementById('createUserForm')?.addEventListener('submit', async (e) => {
+            e.preventDefault();
+            const role = document.getElementById('newUserRole').value;
+            const projects = role === 'user'
+                ? document.getElementById('newUserProjects').value.split(',').map(s => s.trim()).filter(Boolean)
+                : [];
+            try {
+                const response = await Auth.apiFetch('/api/admin/users', {
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify({
+                        username: document.getElementById('newUsername').value.trim(),
+                        password: document.getElementById('newPassword').value,
+                        role: document.getElementById('newUserRole').value,
+                        projects,
+                    }),
+                });
+                const data = await response.json();
+                if (!response.ok) throw new Error(data.detail || 'Ошибка создания');
+                this.showToast(`Пользователь ${data.user.username} создан`, 'success');
+                e.target.reset();
+                this.toggleProjectsField();
+                this.refreshAdminData();
+            } catch (err) {
+                this.showToast(err.message, 'error');
+            }
+        });
+
+        document.getElementById('newUserRole')?.addEventListener('change', () => this.toggleProjectsField());
+        this.toggleProjectsField();
+
+        document.getElementById('createProjectForm')?.addEventListener('submit', async (e) => {
+            e.preventDefault();
+            try {
+                const response = await Auth.apiFetch('/api/admin/projects', {
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify({
+                        slug: document.getElementById('newProjectSlug').value.trim(),
+                        name: document.getElementById('newProjectName').value.trim(),
+                    }),
+                });
+                const data = await response.json();
+                if (!response.ok) throw new Error(data.detail || 'Ошибка');
+                this.showToast(`Проект ${data.project.slug} добавлен`, 'success');
+                e.target.reset();
+                await this.loadProjects();
+                this.refreshAdminData();
+            } catch (err) {
+                this.showToast(err.message, 'error');
+            }
+        });
+    }
+
+    toggleProjectsField() {
+        const role = document.getElementById('newUserRole')?.value;
+        const projectsInput = document.getElementById('newUserProjects');
+        const hint = document.getElementById('newUserProjectsHint');
+        const isUser = role === 'user';
+        if (projectsInput) {
+            projectsInput.disabled = !isUser;
+            projectsInput.placeholder = isUser
+                ? 'Проекты через запятую (2026, gp-merakom)'
+                : 'Не требуется — доступ ко всем проектам организации';
+        }
+        if (hint) {
+            hint.textContent = role === 'director'
+                ? 'Директор: все проекты, глобальный поиск, без панели администрирования.'
+                : role === 'admin'
+                    ? 'Администратор: полный доступ + управление пользователями.'
+                    : 'Укажите slug общих проектов org, назначенных администратором.';
+        }
+    }
+
+    async refreshAdminData() {
+        if (!this.user?.is_admin) return;
+        try {
+            const [usersRes, projectsRes] = await Promise.all([
+                Auth.apiFetch('/api/admin/users'),
+                Auth.apiFetch('/api/admin/projects'),
+            ]);
+            const usersData = await usersRes.json();
+            const projectsData = await projectsRes.json();
+
+            const usersEl = document.getElementById('adminUsersList');
+            if (usersEl) {
+                usersEl.innerHTML = (usersData.users || []).map(u => {
+                    const shared = (u.shared_projects || u.projects || []).join(', ');
+                    const owned = (u.owned_projects || []).join(', ');
+                    const parts = [];
+                    if (owned) parts.push(`личные: ${owned}`);
+                    if (shared) parts.push(`общие: ${shared}`);
+                    if (u.all_projects_access) parts.push('все проекты');
+                    const projectsLabel = parts.join(' · ') || '—';
+                    const roleLabel = { admin: 'admin', director: 'director', user: 'user' }[u.role] || u.role;
+                    return `
+                    <div class="admin-list-item">
+                        <strong>${this.escapeHtml(u.username)}</strong>
+                        <span>${roleLabel}</span>
+                        <span>${this.escapeHtml(projectsLabel)}</span>
+                    </div>
+                `}).join('');
+            }
+
+            const projectsEl = document.getElementById('adminProjectsList');
+            if (projectsEl) {
+                projectsEl.innerHTML = (projectsData.projects || []).map(p => `
+                    <div class="admin-list-item">
+                        <strong>${this.escapeHtml(p.slug)}</strong>
+                        <span>${this.escapeHtml(p.name)}</span>
+                        <span>${p.scope === 'personal' ? 'личный' : 'org'}</span>
+                    </div>
+                `).join('');
+            }
+        } catch (e) {
+            console.error('Admin refresh failed:', e);
+        }
+    }
 }
 
 // Initialize
diff --git a/backend/static/auth.js b/backend/static/auth.js
new file mode 100644
index 0000000..536d3f0
--- /dev/null
+++ b/backend/static/auth.js
@@ -0,0 +1,106 @@
+/**
+ * Shared auth helpers for Transcriba frontend.
+ */
+
+const Auth = {
+    TOKEN_KEY: 'transcriba_token',
+    USER_KEY: 'transcriba_user',
+
+    getToken() {
+        return localStorage.getItem(this.TOKEN_KEY);
+    },
+
+    setSession(token, user) {
+        localStorage.setItem(this.TOKEN_KEY, token);
+        localStorage.setItem(this.USER_KEY, JSON.stringify(user));
+    },
+
+    getUser() {
+        try {
+            const raw = localStorage.getItem(this.USER_KEY);
+            return raw ? JSON.parse(raw) : null;
+        } catch {
+            return null;
+        }
+    },
+
+    clearSession() {
+        localStorage.removeItem(this.TOKEN_KEY);
+        localStorage.removeItem(this.USER_KEY);
+        localStorage.removeItem('transcriba_chat_history');
+    },
+
+    requireAuth() {
+        if (!this.getToken()) {
+            window.location.href = '/login';
+            return false;
+        }
+        return true;
+    },
+
+    authHeaders(extra = {}) {
+        const headers = { ...extra };
+        const token = this.getToken();
+        if (token) headers['Authorization'] = `Bearer ${token}`;
+        return headers;
+    },
+
+    async apiFetch(url, options = {}) {
+        const headers = this.authHeaders(options.headers || {});
+        const response = await fetch(url, { ...options, headers });
+        if (response.status === 401) {
+            this.clearSession();
+            window.location.href = '/login';
+            throw new Error('Требуется авторизация');
+        }
+        return response;
+    },
+
+    async login(orgSlug, username, password) {
+        const response = await fetch('/api/auth/login', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ org_slug: orgSlug, username, password }),
+        });
+        const data = await response.json();
+        if (!response.ok) {
+            throw new Error(data.detail || 'Ошибка входа');
+        }
+        this.setSession(data.access_token, data.user);
+        return data.user;
+    },
+
+    logout() {
+        this.clearSession();
+        window.location.href = '/login';
+    },
+
+    wsUrl(path = '/ws') {
+        const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
+        const token = encodeURIComponent(this.getToken() || '');
+        return `${protocol}//${window.location.host}${path}?token=${token}`;
+    },
+};
+
+if (document.getElementById('loginForm')) {
+    document.getElementById('loginForm').addEventListener('submit', async (e) => {
+        e.preventDefault();
+        const btn = document.getElementById('loginBtn');
+        const errEl = document.getElementById('loginError');
+        errEl.hidden = true;
+        btn.disabled = true;
+        try {
+            await Auth.login(
+                document.getElementById('orgSlug').value.trim(),
+                document.getElementById('username').value.trim(),
+                document.getElementById('password').value
+            );
+            window.location.href = '/';
+        } catch (error) {
+            errEl.textContent = error.message;
+            errEl.hidden = false;
+        } finally {
+            btn.disabled = false;
+        }
+    });
+}
diff --git a/backend/static/index.html b/backend/static/index.html
index 5cbab4c..32a6d0e 100644
--- a/backend/static/index.html
+++ b/backend/static/index.html
@@ -6,20 +6,48 @@
     <title>Транскрибация совещаний</title>
     <link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>🎙️</text></svg>">
     <link rel="stylesheet" href="/static/styles.css">
-    <!-- Markdown renderer -->
     <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
     <script src="https://cdn.jsdelivr.net/npm/dompurify@3.2.4/dist/purify.min.js"></script>
+    <script src="/static/auth.js"></script>
 </head>
 <body>
     <div class="container">
         <header>
-            <h1>🎙️ Транскрибация совещаний</h1>
-            <p class="subtitle">Загрузите аудио или видео файл для получения протокола</p>
+            <div class="header-top">
+                <div>
+                    <h1>🎙️ Транскрибация совещаний</h1>
+                    <p class="subtitle">Загрузите аудио или видео файл для получения протокола</p>
+                </div>
+                <div class="user-bar" id="userBar">
+                    <span id="userInfo"></span>
+                    <button type="button" id="logoutBtn" class="btn-secondary">Выйти</button>
+                </div>
+            </div>
         </header>
 
         <main>
-            <!-- Upload Section -->
+            <section class="workspace-section" id="workspaceSection">
+                <div class="workspace-header">
+                    <h2>📂 Мои проекты</h2>
+                    <p class="workspace-hint">Создайте личный проект и работайте в нём: загрузка, протоколы, RAG-поиск.</p>
+                </div>
+                <div class="projects-panel">
+                    <div id="myProjectsList" class="projects-list"></div>
+                    <form id="createMyProjectForm" class="project-create-form">
+                        <input type="text" id="myProjectSlug" placeholder="slug (например: gp-2026)" required>
+                        <input type="text" id="myProjectName" placeholder="Название проекта" required>
+                        <button type="submit">Создать проект</button>
+                    </form>
+                </div>
+            </section>
+
             <section class="upload-section" id="uploadSection">
+                <div class="upload-controls">
+                    <label>
+                        Проект
+                        <select id="uploadProjectSelect" required></select>
+                    </label>
+                </div>
                 <div class="drop-zone" id="dropZone">
                     <div class="drop-zone-content">
                         <svg class="upload-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
@@ -33,7 +61,6 @@
                     <input type="file" id="fileInput" multiple accept=".mp4,.webm,.avi,.mkv,.mov,.wav,.mp3,.m4a,.ogg,.flac" hidden>
                 </div>
 
-                <!-- Queue Status -->
                 <div class="queue-status" id="queueStatus">
                     <div class="queue-status-header">
                         <h3>Очередь обработки</h3>
@@ -45,7 +72,6 @@
                 </div>
             </section>
 
-            <!-- Results Section -->
             <section class="results-section">
                 <div class="panel-left">
                     <h2>📁 Файлы</h2>
@@ -64,21 +90,18 @@
                 </div>
             </section>
 
-            <!-- Chat Section -->
             <section class="chat-section" id="chatSection">
                 <div class="chat-header">
                     <h2>🤖 Чат с базой знаний</h2>
                     <div class="chat-controls">
-                        <select id="chatProjectSelect">
-                            <option value="">Все проекты</option>
-                        </select>
+                        <select id="chatProjectSelect"></select>
                         <button id="chatClearBtn" title="Очистить историю">🗑️</button>
                     </div>
                 </div>
                 <div class="chat-messages" id="chatMessages">
                     <div class="chat-welcome">
                         <p>Здравствуйте! Я помогу найти информацию в протоколах совещаний.</p>
-                        <p class="chat-hint">Выберите проект или оставьте «Все проекты» для глобального поиска.</p>
+                        <p class="chat-hint" id="chatHint">Выберите проект для поиска.</p>
                     </div>
                 </div>
                 <div class="chat-input-row">
@@ -86,12 +109,41 @@
                     <button id="chatSendBtn">Отправить</button>
                 </div>
             </section>
+
+            <section class="admin-section" id="adminSection" hidden>
+                <h2>⚙️ Администрирование</h2>
+                <div class="admin-grid">
+                    <div class="admin-card">
+                        <h3>Пользователи</h3>
+                        <div id="adminUsersList" class="admin-list"></div>
+                        <form id="createUserForm" class="admin-form">
+                            <input type="text" id="newUsername" placeholder="Логин" required>
+                            <input type="password" id="newPassword" placeholder="Пароль" required>
+                            <select id="newUserRole">
+                                <option value="user">user — выбранные проекты</option>
+                                <option value="director">director — все проекты и поиск</option>
+                                <option value="admin">admin — полный доступ</option>
+                            </select>
+                            <input type="text" id="newUserProjects" placeholder="Общие org-проекты через запятую">
+                            <p class="admin-hint" id="newUserProjectsHint"></p>
+                            <button type="submit">Создать</button>
+                        </form>
+                    </div>
+                    <div class="admin-card">
+                        <h3>Проекты организации</h3>
+                        <div id="adminProjectsList" class="admin-list"></div>
+                        <form id="createProjectForm" class="admin-form">
+                            <input type="text" id="newProjectSlug" placeholder="slug (2026)" required>
+                            <input type="text" id="newProjectName" placeholder="Название" required>
+                            <button type="submit">Добавить проект</button>
+                        </form>
+                    </div>
+                </div>
+            </section>
         </main>
     </div>
 
-    <!-- Toast notifications -->
     <div class="toast-container" id="toastContainer"></div>
-
     <script src="/static/app.js"></script>
 </body>
 </html>
diff --git a/backend/static/login.html b/backend/static/login.html
new file mode 100644
index 0000000..a364c0e
--- /dev/null
+++ b/backend/static/login.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html lang="ru">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Вход — Транскрибация</title>
+    <link rel="stylesheet" href="/static/styles.css">
+</head>
+<body class="login-page">
+    <div class="login-card">
+        <h1>🎙️ Transcriba</h1>
+        <p class="login-subtitle">Вход в рабочее пространство организации</p>
+        <form id="loginForm">
+            <label>
+                Организация
+                <input type="text" id="orgSlug" value="merakom" autocomplete="organization" required>
+            </label>
+            <label>
+                Логин
+                <input type="text" id="username" autocomplete="username" required>
+            </label>
+            <label>
+                Пароль
+                <input type="password" id="password" autocomplete="current-password" required>
+            </label>
+            <button type="submit" id="loginBtn">Войти</button>
+            <p class="login-error" id="loginError" hidden></p>
+        </form>
+    </div>
+    <script src="/static/auth.js"></script>
+</body>
+</html>
diff --git a/backend/static/styles.css b/backend/static/styles.css
index d960682..d499cc2 100644
--- a/backend/static/styles.css
+++ b/backend/static/styles.css
@@ -750,3 +750,289 @@ header h1 {
         gap: 10px;
     }
 }
+
+/* ===== Auth / Login ===== */
+.login-page {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    min-height: 100vh;
+    padding: 20px;
+}
+
+.login-card {
+    width: 100%;
+    max-width: 420px;
+    background: var(--bg-secondary);
+    border: 1px solid var(--border);
+    border-radius: var(--radius);
+    padding: 32px;
+    box-shadow: var(--shadow);
+}
+
+.login-card h1 {
+    margin-bottom: 8px;
+}
+
+.login-subtitle {
+    color: var(--text-secondary);
+    margin-bottom: 24px;
+}
+
+.login-card label {
+    display: block;
+    margin-bottom: 14px;
+    color: var(--text-secondary);
+    font-size: 0.9rem;
+}
+
+.login-card input {
+    width: 100%;
+    margin-top: 6px;
+    padding: 10px 12px;
+    border-radius: var(--radius);
+    border: 1px solid var(--border);
+    background: var(--bg-hover);
+    color: var(--text-primary);
+}
+
+.login-card button {
+    width: 100%;
+    margin-top: 8px;
+    padding: 12px;
+    border: none;
+    border-radius: var(--radius);
+    background: var(--accent);
+    color: white;
+    cursor: pointer;
+}
+
+.login-error {
+    color: var(--error);
+    margin-top: 12px;
+}
+
+.header-top {
+    display: flex;
+    justify-content: space-between;
+    align-items: flex-start;
+    gap: 16px;
+}
+
+.user-bar {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+    color: var(--text-secondary);
+    font-size: 0.9rem;
+}
+
+.btn-secondary {
+    background: var(--bg-hover);
+    color: var(--text-primary);
+    border: 1px solid var(--border);
+    border-radius: var(--radius);
+    padding: 8px 14px;
+    cursor: pointer;
+}
+
+.upload-controls {
+    margin-bottom: 12px;
+}
+
+.upload-controls label {
+    display: flex;
+    flex-direction: column;
+    gap: 6px;
+    color: var(--text-secondary);
+    max-width: 320px;
+}
+
+.upload-controls select {
+    padding: 8px 10px;
+    border-radius: var(--radius);
+    border: 1px solid var(--border);
+    background: var(--bg-hover);
+    color: var(--text-primary);
+}
+
+.workspace-section {
+    margin-bottom: 24px;
+    padding: 20px;
+    background: var(--bg-secondary);
+    border: 1px solid var(--border);
+    border-radius: var(--radius);
+}
+
+.workspace-header h2 {
+    margin-bottom: 6px;
+}
+
+.workspace-hint {
+    color: var(--text-secondary);
+    font-size: 0.9rem;
+    margin-bottom: 16px;
+}
+
+.projects-panel {
+    display: flex;
+    flex-direction: column;
+    gap: 16px;
+}
+
+.projects-list {
+    display: grid;
+    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
+    gap: 10px;
+}
+
+.project-card {
+    display: flex;
+    flex-direction: column;
+    gap: 4px;
+    padding: 12px;
+    background: var(--bg-tertiary);
+    border: 1px solid var(--border);
+    border-radius: var(--radius);
+    position: relative;
+}
+
+.project-card-main {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+}
+
+.project-slug {
+    font-size: 0.8rem;
+    color: var(--text-secondary);
+}
+
+.project-badge {
+    font-size: 0.7rem;
+    padding: 2px 6px;
+    border-radius: 999px;
+}
+
+.project-badge.personal {
+    background: rgba(74, 158, 255, 0.15);
+    color: var(--accent);
+}
+
+.project-badge.org {
+    background: rgba(74, 222, 128, 0.12);
+    color: var(--success);
+}
+
+.project-delete {
+    position: absolute;
+    top: 8px;
+    right: 8px;
+    background: none;
+    border: none;
+    color: var(--text-secondary);
+    cursor: pointer;
+}
+
+.project-create-form {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 10px;
+    align-items: center;
+}
+
+.project-create-form input {
+    padding: 8px 10px;
+    border-radius: var(--radius);
+    border: 1px solid var(--border);
+    background: var(--bg-hover);
+    color: var(--text-primary);
+    min-width: 180px;
+}
+
+.project-create-form button {
+    padding: 8px 16px;
+    border: none;
+    border-radius: var(--radius);
+    background: var(--accent);
+    color: white;
+    cursor: pointer;
+}
+
+.admin-section {
+    margin-top: 24px;
+    padding: 20px;
+    background: var(--bg-secondary);
+    border: 1px solid var(--border);
+    border-radius: var(--radius);
+}
+
+.admin-grid {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    gap: 16px;
+    margin-top: 16px;
+}
+
+.admin-card {
+    background: var(--bg-tertiary);
+    border: 1px solid var(--border);
+    border-radius: var(--radius);
+    padding: 16px;
+}
+
+.admin-list {
+    margin: 12px 0;
+    max-height: 220px;
+    overflow-y: auto;
+}
+
+.admin-list-item {
+    display: grid;
+    grid-template-columns: 1fr auto auto;
+    gap: 8px;
+    padding: 8px 0;
+    border-bottom: 1px solid var(--border);
+    font-size: 0.9rem;
+}
+
+.admin-form {
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+}
+
+.admin-form input,
+.admin-form select {
+    padding: 8px 10px;
+    border-radius: var(--radius);
+    border: 1px solid var(--border);
+    background: var(--bg-hover);
+    color: var(--text-primary);
+}
+
+.admin-form button {
+    align-self: flex-start;
+    padding: 8px 14px;
+    border: none;
+    border-radius: var(--radius);
+    background: var(--accent);
+    color: white;
+    cursor: pointer;
+}
+
+.admin-hint {
+    font-size: 0.85rem;
+    color: var(--text-secondary);
+    margin: 0;
+}
+
+@media (max-width: 768px) {
+    .admin-grid {
+        grid-template-columns: 1fr;
+    }
+
+    .header-top {
+        flex-direction: column;
+    }
+}
diff --git a/config.yaml b/config.yaml
index bb3a7a1..a38ae9f 100644
--- a/config.yaml
+++ b/config.yaml
@@ -71,6 +71,22 @@ queue:
   transcribe_workers: 2
   postprocess_workers: 1
 
+# Авторизация и multi-tenant (org + projects)
+auth:
+  jwt_secret: ""  # Обязательно задайте JWT_SECRET в .env для production
+  jwt_expire_hours: 168
+  database_path: ./data/transcriba.db
+  bootstrap:
+    org_slug: merakom
+    org_name: "МЕРАКОМ"
+    admin_username: admin
+    admin_password: "admin123"  # Смените после первого входа; или AUTH_ADMIN_PASSWORD в .env
+    default_projects:
+      - slug: "2026"
+        name: "2026"
+      - slug: "gp-merakom"
+        name: "ГП МЕРАКОМ"
+
 # Пути
 paths:
   output_dir: ./output
diff --git a/docker-compose.yml b/docker-compose.yml
index 8b5bd17..0fce2dc 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -16,7 +16,8 @@ services:
       - OPENCODE_URL=${OPENCODE_URL:-https://opencode.ai/zen/v1}
       - HF_HOME=/root/.cache/huggingface
       - NLTK_DATA=/root/nltk_data
-      - TRANSFORMERS_OFFLINE=0
+      - JWT_SECRET=${JWT_SECRET:-change-me-in-production}
+      - AUTH_ADMIN_PASSWORD=${AUTH_ADMIN_PASSWORD:-admin123}
     volumes:
       - uploads:/app/uploads
       - processed:/app/processed
@@ -27,11 +28,12 @@ services:
       - ./scripts:/app/scripts:ro
       - ./models/huggingface:/root/.cache/huggingface
       - ./models/nltk_data:/root/nltk_data:ro
+      - data:/app/data
     restart: unless-stopped
     entrypoint: ["uvicorn"]
     command: ["backend.main:app", "--host", "0.0.0.0", "--port", "8000"]
     healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:8000/api/files"]
+      test: ["CMD", "curl", "-f", "http://localhost:8000/api/health"]
       interval: 30s
       timeout: 10s
       retries: 3
@@ -41,3 +43,4 @@ volumes:
   uploads:
   processed:
   tmp:
+  data:
diff --git a/requirements.txt b/requirements.txt
index fcc189f..0d04d28 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,10 @@ python-docx
 pyyaml
 whisperx
 
+# Auth
+bcrypt>=4.0.0
+python-jose[cryptography]
+
 # RAG / LightRAG
 lightrag-hku>=1.4.0
 openai>=1.0.0
diff --git a/tests/test_auth.py b/tests/test_auth.py
new file mode 100644
index 0000000..6e15608
--- /dev/null
+++ b/tests/test_auth.py
@@ -0,0 +1,170 @@
+"""Tests for multi-tenant auth (without WhisperX dependency)."""
+
+import os
+import tempfile
+import unittest
+from pathlib import Path
+
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+
+from backend.auth.database import bootstrap_from_config, init_db
+from backend.auth.routes import admin_router, router as auth_router
+
+
+def _build_test_app() -> FastAPI:
+    app = FastAPI()
+    app.include_router(auth_router)
+    app.include_router(admin_router)
+    return app
+
+
+class AuthTestCase(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls._tmpdir = tempfile.TemporaryDirectory()
+        cls.db_path = Path(cls._tmpdir.name) / "test.db"
+        os.environ["JWT_SECRET"] = "test-secret-key"
+        os.environ["AUTH_ADMIN_PASSWORD"] = "admin123"
+        os.environ["AUTH_DATABASE_PATH"] = str(cls.db_path)
+
+        config = {
+            "auth": {
+                "database_path": str(cls.db_path),
+                "bootstrap": {
+                    "org_slug": "merakom",
+                    "org_name": "Test Org",
+                    "admin_username": "admin",
+                    "default_projects": [
+                        {"slug": "2026", "name": "2026"},
+                        {"slug": "gp-merakom", "name": "GP"},
+                    ],
+                },
+            }
+        }
+        init_db(config)
+        bootstrap_from_config(config)
+        cls.client = TestClient(_build_test_app())
+
+    @classmethod
+    def tearDownClass(cls):
+        cls._tmpdir.cleanup()
+        os.environ.pop("AUTH_DATABASE_PATH", None)
+
+    def test_login_admin(self):
+        response = self.client.post(
+            "/api/auth/login",
+            json={"org_slug": "merakom", "username": "admin", "password": "admin123"},
+        )
+        self.assertEqual(response.status_code, 200)
+        data = response.json()
+        self.assertIn("access_token", data)
+        self.assertTrue(data["user"]["is_admin"])
+
+    def test_create_user_and_project_acl(self):
+        admin_login = self.client.post(
+            "/api/auth/login",
+            json={"org_slug": "merakom", "username": "admin", "password": "admin123"},
+        ).json()
+        headers = {"Authorization": f"Bearer {admin_login['access_token']}"}
+
+        create_user = self.client.post(
+            "/api/admin/users",
+            headers=headers,
+            json={
+                "username": "worker",
+                "password": "worker123",
+                "role": "user",
+                "projects": ["2026"],
+            },
+        )
+        self.assertEqual(create_user.status_code, 200)
+
+        user_login = self.client.post(
+            "/api/auth/login",
+            json={"org_slug": "merakom", "username": "worker", "password": "worker123"},
+        ).json()
+        user_headers = {"Authorization": f"Bearer {user_login['access_token']}"}
+
+        projects = self.client.get("/api/auth/projects", headers=user_headers).json()
+        slugs = {p["slug"] for p in projects["projects"]}
+        self.assertEqual(slugs, {"2026"})
+
+    def test_director_has_all_projects_and_no_admin(self):
+        admin_login = self.client.post(
+            "/api/auth/login",
+            json={"org_slug": "merakom", "username": "admin", "password": "admin123"},
+        ).json()
+        headers = {"Authorization": f"Bearer {admin_login['access_token']}"}
+
+        create_director = self.client.post(
+            "/api/admin/users",
+            headers=headers,
+            json={
+                "username": "director1",
+                "password": "dir123",
+                "role": "director",
+                "projects": [],
+            },
+        )
+        self.assertEqual(create_director.status_code, 200)
+        self.assertTrue(create_director.json()["user"]["all_projects_access"])
+        self.assertFalse(create_director.json()["user"]["is_admin"])
+
+        director_login = self.client.post(
+            "/api/auth/login",
+            json={"org_slug": "merakom", "username": "director1", "password": "dir123"},
+        ).json()
+        d_headers = {"Authorization": f"Bearer {director_login['access_token']}"}
+
+        projects = self.client.get("/api/auth/projects", headers=d_headers).json()
+        slugs = {p["slug"] for p in projects["projects"]}
+        self.assertEqual(slugs, {"2026", "gp-merakom"})
+
+        global_query = self.client.post(
+            "/api/rag/query-global",
+            headers=d_headers,
+            json={"question": "test"},
+        )
+        self.assertNotEqual(global_query.status_code, 403)
+
+    def test_user_creates_personal_project(self):
+        admin_login = self.client.post(
+            "/api/auth/login",
+            json={"org_slug": "merakom", "username": "admin", "password": "admin123"},
+        ).json()
+        headers = {"Authorization": f"Bearer {admin_login['access_token']}"}
+
+        self.client.post(
+            "/api/admin/users",
+            headers=headers,
+            json={
+                "username": "builder",
+                "password": "build123",
+                "role": "user",
+                "projects": [],
+            },
+        )
+
+        user_login = self.client.post(
+            "/api/auth/login",
+            json={"org_slug": "merakom", "username": "builder", "password": "build123"},
+        ).json()
+        user_headers = {"Authorization": f"Bearer {user_login['access_token']}"}
+
+        created = self.client.post(
+            "/api/auth/projects",
+            headers=user_headers,
+            json={"slug": "my-gp", "name": "Мой ГП"},
+        )
+        self.assertEqual(created.status_code, 200)
+        self.assertEqual(created.json()["project"]["scope"], "personal")
+        self.assertTrue(created.json()["project"]["is_owner"])
+
+        projects = self.client.get("/api/auth/projects", headers=user_headers).json()
+        slugs = {p["slug"] for p in projects["projects"]}
+        self.assertEqual(slugs, {"my-gp"})
+
+
+if __name__ == "__main__":
+    unittest.main()