Refactor: Replace Immich integration with local file storage and admin auth

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

app/config.py

@@ -13,10 +13,8 @@ from dotenv import load_dotenv
 @dataclass
 class Settings:
     """App settings loaded from environment variables (.env)."""
-    immich_base_url: str
-    immich_api_key: str
+    admin_password: str
     max_concurrent: int
-    album_name: str = ""
     public_upload_page_enabled: bool = False
     public_base_url: str = ""
     state_db: str = ""
@@ -25,16 +23,6 @@ class Settings:
     chunked_uploads_enabled: bool = False
     chunk_size_mb: int = 95
 
-    @property
-    def normalized_base_url(self) -> str:
-        """Return the base URL without a trailing slash for clean joining and display."""
-        return self.immich_base_url.rstrip("/")
-
-    @property
-    def local_save_only(self) -> bool:
-        """True if configured to save locally instead of uploading to Immich."""
-        return str(self.immich_base_url).lower() == "false"
-
 def load_settings() -> Settings:
     """Load settings from .env, applying defaults when absent."""
     # Load environment variables from .env once here so importers don’t have to
@@ -42,9 +30,7 @@ def load_settings() -> Settings:
         load_dotenv()
     except Exception:
         pass
-    base = os.getenv("IMMICH_BASE_URL", "http://127.0.0.1:2283/api")
-    api_key = os.getenv("IMMICH_API_KEY", "")
-    album_name = os.getenv("IMMICH_ALBUM_NAME", "")
+    admin_password = os.getenv("ADMIN_PASSWORD", "admin") # Default for convenience, should be changed
     # Safe defaults: disable public uploader and invites unless explicitly enabled
     def as_bool(v: str, default: bool = False) -> bool:
         if v is None:
@@ -64,10 +50,8 @@ def load_settings() -> Settings:
     except ValueError:
         chunk_size_mb = 95
     return Settings(
-        immich_base_url=base,
-        immich_api_key=api_key,
+        admin_password=admin_password,
         max_concurrent=maxc,
-        album_name=album_name,
         public_upload_page_enabled=public_upload,
         public_base_url=os.getenv("PUBLIC_BASE_URL", ""),
         state_db=state_db,