Implement frontend session routing flow

- Validate and prepare access links in apps/frontend
- Add session, ended, and unauthorized routes with polling
- Copy full public access URLs from the admin links page

.env.example

@@ -8,15 +8,9 @@ DATABASE_URL=${{project.DATABASE_URL}}
 INTERNAL_API_KEY=${{project.INTERNAL_API_KEY}}
 DEBUG_KEY=${{project.DEBUG_KEY}}
 
-PUBLIC_URL=${{project.PUBLIC_URL}}
-
-PROCESSOR_API_URL=${{project.PROCESSOR_API_URL}}
-APP_BUILDER_API_URL=${{project.APP_BUILDER_API_URL}}
-APP_BUILDER_ASSETS_PUBLIC_URL=${{project.APP_BUILDER_ASSETS_PUBLIC_URL}}
-
-CLIENT_DOWNLOADED_APK_NAME=${{project.CLIENT_DOWNLOADED_APK_NAME}}
-
-MOBILE_APP_API_URL=${{project.MOBILE_APP_API_URL}}
+ORCHESTRATOR_API_URL=${{project.ORCHESTRATOR_API_URL}}
+PUBLIC_WS_SCRCPY_SVC_URL=${{project.PUBLIC_WS_SCRCPY_SVC_URL}}
+PUBLIC_FRONTEND_URL=${{project.PUBLIC_FRONTEND_URL}}
 
 BETTER_AUTH_SECRET=${{project.BETTER_AUTH_SECRET}}
 BETTER_AUTH_URL=${{project.BETTER_AUTH_URL}}
@@ -34,14 +28,3 @@ OTEL_EXPORTER_OTLP_HTTP_ENDPOINT=${{project.OTEL_EXPORTER_OTLP_HTTP_ENDPOINT}}
 OTEL_EXPORTER_OTLP_ENDPOINT=${{project.OTEL_EXPORTER_OTLP_ENDPOINT}}
 OTEL_EXPORTER_OTLP_PROTOCOL=${{project.OTEL_EXPORTER_OTLP_PROTOCOL}}
 OTEL_RESOURCE_ATTRIBUTES=${{project.OTEL_RESOURCE_ATTRIBUTES}}
-
-R2_BUCKET_NAME=${{project.R2_BUCKET_NAME}}
-R2_REGION=${{project.R2_REGION}}
-R2_ENDPOINT=${{project.R2_ENDPOINT}}
-R2_ACCESS_KEY=${{project.R2_ACCESS_KEY}}
-R2_SECRET_KEY=${{project.R2_SECRET_KEY}}
-R2_PUBLIC_URL=${{project.R2_PUBLIC_URL}}
-
-MAX_FILE_SIZE=${{project.MAX_FILE_SIZE}}
-ALLOWED_MIME_TYPES=${{project.ALLOWED_MIME_TYPES}}
-ALLOWED_EXTENSIONS=${{project.ALLOWED_EXTENSIONS}}