Add lightweight analytics dashboard

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/server.py

@@ -16,6 +16,7 @@ from .config import AppConfig, load_app_config
 from .storage import HistoryDB
 from .task_manager import JobManager
 from .ui import monitoring_js_path, monitoring_page_html
+from .utils import utc_now_iso
 
 
 class CreateJobRequest(BaseModel):
@@ -386,6 +387,12 @@ def create_app(config: AppConfig | None = None) -> FastAPI:
     def stats(_: None = Depends(require_token)) -> dict[str, Any]:
         return manager.stats()
 
+    @app.get("/api/analytics")
+    def analytics(_: None = Depends(require_token)) -> dict[str, Any]:
+        payload = manager.analytics()
+        payload["generated_at"] = utc_now_iso()
+        return payload
+
     if not app_config.disable_ui:
         @app.get("/", response_class=HTMLResponse)
         def ui_root() -> str: