Add remote browser pages and website sync

Enable managed remote browser custom pages with login autofill and add website sync workflows so external admin surfaces can be handled inside SmartUp.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend/app/main.py

@@ -3,7 +3,7 @@ import logging
 from contextlib import asynccontextmanager
 from pathlib import Path
 
-from fastapi import FastAPI
+from fastapi import FastAPI, HTTPException
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.staticfiles import StaticFiles
 from fastapi.responses import FileResponse
@@ -14,7 +14,8 @@ from app.models.admin_user import AdminUser
 from app.database import SessionLocal
 from app.utils.auth import hash_password
 from app.services.scheduler import start_scheduler, stop_scheduler
-from app.routers import auth, upstreams, webhooks, logs, custom_pages
+from app.routers import auth, upstreams, webhooks, logs, custom_pages, browser_sessions, websites
+from app.services.browser_session_service import browser_sessions as browser_session_service
 
 logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)s %(name)s %(message)s")
 logger = logging.getLogger(__name__)
@@ -48,6 +49,7 @@ async def lifespan(app: FastAPI):
     _init_admin()
     start_scheduler()
     yield
+    await browser_session_service.shutdown()
     stop_scheduler()
 
 
@@ -75,6 +77,8 @@ app.include_router(upstreams.router)
 app.include_router(webhooks.router)
 app.include_router(logs.router)
 app.include_router(custom_pages.router)
+app.include_router(browser_sessions.router)
+app.include_router(websites.router)
 
 
 @app.get("/healthz")
@@ -87,6 +91,13 @@ STATIC_DIR = Path(__file__).parent.parent / "static"
 if STATIC_DIR.exists():
     app.mount("/assets", StaticFiles(directory=str(STATIC_DIR / "assets")), name="assets")
 
+    @app.api_route("/favicon.svg", methods=["GET", "HEAD"])
+    def serve_favicon():
+        favicon = STATIC_DIR / "favicon.svg"
+        if not favicon.exists():
+            raise HTTPException(status_code=404, detail="favicon not found")
+        return FileResponse(str(favicon), media_type="image/svg+xml")
+
     @app.get("/{full_path:path}")
     def serve_spa(full_path: str):
         index = STATIC_DIR / "index.html"