Add hosting deployment setup and backend health endpoint

backend/.env.example

@@ -0,0 +1,14 @@
+# JWT
+SECRET_KEY=change-me-in-production
+ALGORITHM=HS256
+ACCESS_TOKEN_EXPIRE_MINUTES=43200
+
+# OpenID Connect (SSO)
+SSO_ENABLED=false
+ZITADEL_ISSUER=
+ZITADEL_CLIENT_ID=
+ZITADEL_CLIENT_SECRET=
+
+# URLs
+BASE_URL=https://panel.example.com
+FRONTEND_URL=https://panel.example.com

backend/main.py

@@ -172,6 +172,11 @@ def check_server_access(user: dict, server_name: str):
         return False
     return server_name in user.get("servers", [])
 
+# Healthcheck endpoint for Docker/hosting probes
+@app.get("/health")
+async def health():
+    return {"status": "ok"}
+
 # API для аутентификации
 
 # OpenID Connect endpoints
@@ -1936,4 +1941,4 @@ app.include_router(daemons_router)
 
 if __name__ == "__main__":
     import uvicorn
-    uvicorn.run(app, host="0.0.0.0", port=8000)
+    uvicorn.run(app, host="0.0.0.0", port=4546)