Initial commit: Phase 1 – Projektstruktur, DB-Schema, Core-API

- FastAPI-Backend mit vollständiger ABS v2.x API-Kompatibilität
- SQLAlchemy-Models: User, Library, LibraryItem, BookFile, Chapter,
  Podcast, PodcastEpisode, MediaProgress, Bookmark, PlaybackSession
- Auth: JWT-Login (/login, /logout, /api/authorize)
- Library + Items Endpoints inkl. camelCase ABS-Response-Format
- HLS-Streaming via FFmpeg (POST /api/items/:id/play, Session-Sync)
- Me/Progress Endpoints + Lesezeichen
- User-Management + Server-Settings (Admin)
- Library-Scanner (MP3/WAV Discovery, Hintergrund-Task)
- File Watcher (watchdog, 30s Debounce)
- Matching-Skelett (MusicBrainz, OpenLibrary, Google Books – Phase 5)
- Docker-Setup: backend (Python 3.12+FFmpeg), frontend (React/Vite),
  nginx Reverse-Proxy auf Port 3000
- setup.sh: Installiert Docker auf Debian/Ubuntu, richtet .env ein

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/schemas/user.py

@@ -0,0 +1,72 @@
+from pydantic import BaseModel, ConfigDict
+from pydantic.alias_generators import to_camel
+from datetime import datetime
+from typing import Any
+
+
+class ServerSettingsOut(BaseModel):
+    model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
+
+    id: str = "server-settings"
+    token_secret: str = ""
+    items_per_page: int = 10
+    metadata_provider: str = "google"
+    store_covers_with_item: bool = False
+    ratio_cover_book_name: bool = False
+    cover_aspect_ratio: int = 1
+    disable_opds: bool = False
+    log_level: int = 2
+    scanner_parse_same_author_name: bool = False
+    auth_active_users: list = []
+    auth_local_users: list = []
+
+
+class UserSettings(BaseModel):
+    model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
+
+    muted_badge_notifications: bool = False
+    show_remaining_time: bool = False
+    display_remaining_time: bool = False
+    library_filters: dict = {}
+    playback_rate: float = 1.0
+    bookmarks_list_collapsed: bool = False
+    sleep_timer_duration: int = 900
+    sleep_timer_podcast_chapters: bool = False
+    language: str = "de"
+
+
+class UserOut(BaseModel):
+    model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
+
+    id: str
+    username: str
+    email: str | None = None
+    type: str = "user"
+    is_active: bool = True
+    is_locked: bool = False
+    last_seen: datetime | None = None
+    created_at: datetime
+    token: str | None = None
+    media_progress: list = []
+    bookmarks: list = []
+    is_admin: bool = False
+    libraries_accessible: list[str] = []
+    item_tags_accessible: list[str] = []
+    permissions: dict = {}
+    series_hide_from_continue_listening: list = []
+    settings: UserSettings = UserSettings()
+
+
+class UserCreate(BaseModel):
+    username: str
+    password: str
+    email: str | None = None
+    is_admin: bool = False
+
+
+class UserUpdate(BaseModel):
+    email: str | None = None
+    password: str | None = None
+    is_admin: bool | None = None
+    is_active: bool | None = None
+    settings: dict | None = None