Update service ports to 12015 for backend and 12016 for frontend; adjust configurations and documentation accordingly

frontend/app/config.py

@@ -3,7 +3,8 @@ import os
 
 
 class Config:
-    SECRET_KEY = os.getenv("FLASK_SECRET_KEY", "dev-secret-change-in-production")
-    BACKEND_URL = os.getenv("BACKEND_URL", "http://localhost:12000")
+    SECRET_KEY = os.getenv(
+        "FLASK_SECRET_KEY", "dev-secret-change-in-production")
+    BACKEND_URL = os.getenv("BACKEND_URL", "http://localhost:12015")
     SESSION_COOKIE_HTTPONLY = True
     SESSION_COOKIE_SAMESITE = "Lax"

frontend/app/static/app.js

@@ -79,6 +79,6 @@ document.addEventListener("DOMContentLoaded", () => {
       } catch (e) {
         console.error("Video polling error:", e);
       }
-    }, 12001);
+    }, 12016);
   }
 });