Add hybrid app version labels

backend/src/media_library_viewer_api/main.py

@@ -14,6 +14,7 @@ from media_library_viewer_api.auth import require_jwt_auth, validate_auth_settin
 from media_library_viewer_api.config import get_settings
 from media_library_viewer_api.logging_utils import configure_logging, describe_settings
 from media_library_viewer_api.routers import dashboard, monitoring, media, files, jobs, users, tasks
+from .version import get_backend_version, get_version_info
 from media_library_viewer_api.routers.settings import router as settings_router
 from media_library_viewer_api.dependencies import get_mail_queue, get_monitoring_poller, get_settings_store
 from media_library_viewer_api.services.known_hosts import ensure_known_hosts_for_machines
@@ -46,7 +47,7 @@ async def lifespan(app: FastAPI):
 
 app = FastAPI(
     title="Manage API",
-    version="0.1.0",
+    version=get_backend_version(),
     description="Manage API for Jellyfin media browsing, SSH file inspection, server monitoring, and JWT-protected access.",
     lifespan=lifespan,
 )
@@ -67,6 +68,8 @@ app.add_middleware(
 
 @app.middleware("http")
 async def enforce_jwt_auth(request: Request, call_next):
+    if request.url.path in {"/api/health", "/api/version"}:
+        return await call_next(request)
     return await require_jwt_auth(request, call_next)
 
 @app.middleware("http")
@@ -109,5 +112,12 @@ def health_check() -> dict[str, str]:
     return {"status": "ok"}
 
 
+@app.get("/api/version")
+def version_info() -> dict[str, str]:
+    """Expose backend version/build metadata for the UI."""
+    logger.debug("version requested")
+    return get_version_info()
+
+
 if __name__ == "__main__":
-    uvicorn.run(app, host="0.0.0.0", port=8000)
+    uvicorn.run(app, host="0.0.0.0", port=8000)

backend/src/media_library_viewer_api/version.py

@@ -0,0 +1,50 @@
+"""Version helpers for the backend service."""
+
+from __future__ import annotations
+
+import os
+from importlib.metadata import PackageNotFoundError, version as package_version
+
+PACKAGE_NAME = "media-library-viewer-backend"
+DEFAULT_VERSION = "0.1.0"
+
+
+def get_backend_version() -> str:
+    """Return the packaged backend version or a stable fallback."""
+    env_version = os.getenv("APP_VERSION", "").strip()
+    if env_version:
+        return env_version
+    try:
+        return package_version(PACKAGE_NAME)
+    except PackageNotFoundError:
+        return DEFAULT_VERSION
+
+
+def get_backend_build_info() -> str:
+    """Return a short build marker such as a git SHA or dev marker."""
+    return (
+        os.getenv("APP_BUILD_INFO", "").strip()
+        or os.getenv("GIT_COMMIT", "").strip()
+        or os.getenv("BUILD_COMMIT", "").strip()
+        or "dev"
+    )
+
+
+def format_version_label(version: str, build_info: str) -> str:
+    """Format a user-facing version label."""
+    label = version.strip() or DEFAULT_VERSION
+    build = build_info.strip()
+    if build and build != "dev":
+        return f"{label}+{build}"
+    return label
+
+
+def get_version_info() -> dict[str, str]:
+    version = get_backend_version()
+    build_info = get_backend_build_info()
+    return {
+        "app": "Manage",
+        "backend_version": version,
+        "backend_build": build_info,
+        "backend_label": format_version_label(version, build_info),
+    }