diff --git a/frontend/src/hooks/useFCM.js b/frontend/src/hooks/useFCM.js
index 8765f7b..4561225 100644
--- a/frontend/src/hooks/useFCM.js
+++ b/frontend/src/hooks/useFCM.js
@@ -1,162 +1,12 @@
-import { useCallback, useMemo, useEffect } from "react";
-import useNotificationStore from "../stores/useNotificationStore";
-import { notify } from "../services/notification";
-import { notificationsAPI } from "../services/api";
-import { playNotificationSound } from "../utils/playNotificationSound";
-
 /**
  * Hook to manage Firebase Cloud Messaging (FCM) notifications.
- * Handles permission requests, token registration, and foreground message listening.
+ *
+ * TEMPORARILY DISABLED — Firebase FCM is turned off.
+ * To re-enable: restore the original implementation from git history.
+ * Commit before disable: 6085f69
  */
-export const useFCM = (userId) => {
-  // ─── DISABLED: Firebase FCM temporarily disabled ───────────────────
-  // Re-enable by removing this early return block.
-  return;
-  // ──────────────────────────────────────────────────────────────────
-
-  const showWelcomeNotification = useCallback(async () => {
-    if (!("Notification" in window) || Notification.permission !== "granted")
-      return;
-
-    try {
-      const registration = await navigator.serviceWorker.ready;
-      registration.showNotification("Welcome to CLASHCODE! 🚀", {
-        body: "You're all set! Prepare for some intense coding battles and stay tuned for challenge alerts.",
-        icon: "/favicon.svg",
-        badge: "/favicon.svg",
-        tag: "welcome-message",
-        data: { url: "/home" },
-      });
-    } catch (err) {
-      console.error("[FCM] Failed to show welcome notification:", err);
-    }
-  }, []);
-
-  const registerFCM = useCallback(async () => {
-    try {
-      const { requestForToken } = await import("../services/firebase");
-      const token = await requestForToken();
-
-      if (!token) {
-        console.warn(
-          "[FCM] No token received from Firebase. Registration aborted.",
-        );
-        return;
-      }
-
-      const store = useNotificationStore.getState();
-
-      // Sync with backend
-      await notificationsAPI.registerFCMToken({
-        token: token,
-        device_id: navigator.userAgent,
-      });
-
-      const oldToken = store.fcmToken;
-      useNotificationStore.setState({ fcmToken: token });
-
-      if (token !== oldToken) {
-        notify.success("Push notifications active! 🔔");
-
-        // Show welcome notification if it's the first time on this device for this user
-        const welcomeKey = `fcm_welcome_sent_${userId}`;
-        if (userId && !localStorage.getItem(welcomeKey)) {
-          await showWelcomeNotification();
-          localStorage.setItem(welcomeKey, "true");
-        }
-      }
-    } catch (error) {
-      console.error("[FCM] Registration error:", error);
-      notify.error("Registration Failed", {
-        description: error.message || "Could not sync with backend",
-      });
-    }
-  }, [userId, showWelcomeNotification]);
 
-  const requestPermission = useCallback(async () => {
-    if (typeof Notification === "undefined") return "default";
-    try {
-      const permission = await Notification.requestPermission();
-      useNotificationStore.setState({ permission });
-      
-      if (permission === "granted") {
-        notify.success("Permission Granted!", {
-          description: "Setting up real-time secure channel...",
-        });
-        await registerFCM();
-      } else if (permission === "denied") {
-        notify.error("Permission Denied", {
-          description: "You've blocked notifications. Please enable them in site settings.",
-        });
-      }
-      return permission;
-    } catch (error) {
-      console.error("Error requesting notification permission:", error);
-      return "default";
-    }
-  }, [registerFCM]);
-
-  const initFCM = useCallback(async () => {
-    if (typeof Notification === "undefined") return;
-
-    const store = useNotificationStore.getState();
-
-    if (Notification.permission === "default") {
-      if (!store._promptShown) {
-        notify.info("Enable Notifications", {
-          description: "Stay updated with real-time alerts.",
-          action: {
-            label: "Allow",
-            onClick: () => requestPermission(),
-          },
-        });
-        useNotificationStore.setState({ _promptShown: true });
-      }
-    } else if (Notification.permission === "granted") {
-      await registerFCM();
-    }
-
-    // Listener for foreground messages
-    if (store._listenerSetup) return;
-    useNotificationStore.setState({ _listenerSetup: true });
-
-    try {
-      const { onMessageListener } = await import("../services/firebase");
-      onMessageListener((payload) => {
-        const title = payload.notification?.title || payload.data?.title || "New Notification";
-        const body = payload.notification?.body || payload.data?.body || "New alert received.";
-        
-        const currentStore = useNotificationStore.getState();
-        currentStore._showToast(title, body);
-        currentStore.scheduleRealtimeSync();
-      });
-    } catch (error) {
-      console.error("Error setting up foreground message listener:", error);
-    }
-  }, [registerFCM, requestPermission]);
-
-  useEffect(() => {
-    if (userId) {
-      initFCM();
-    }
-  }, [userId, initFCM]);
-
-  // Listen for messages from service worker (background notification clicks)
-  useEffect(() => {
-    if (!("serviceWorker" in navigator)) return;
-
-    const onSwMessage = (event) => {
-      if (event.data?.type === "PLAY_NOTIFICATION_SOUND") {
-        playNotificationSound();
-      }
-    };
-
-    navigator.serviceWorker.addEventListener("message", onSwMessage);
-    return () => navigator.serviceWorker.removeEventListener("message", onSwMessage);
-  }, []);
-
-  return useMemo(
-    () => ({ initFCM, requestPermission, registerFCM }),
-    [initFCM, requestPermission, registerFCM]
-  );
+// eslint-disable-next-line no-unused-vars
+export const useFCM = (userId) => {
+  // No-op while FCM is disabled
 };
diff --git a/frontend/src/hooks/useGitHubSync.js b/frontend/src/hooks/useGitHubSync.js
index 90ec4ea..77ce8ae 100644
--- a/frontend/src/hooks/useGitHubSync.js
+++ b/frontend/src/hooks/useGitHubSync.js
@@ -22,7 +22,7 @@ export function useGitHubSync() {
       setConnected(data.connected);
       setConnection(data.connection);
       setError(null);
-    } catch (err) {
+    } catch {
       setError("Failed to fetch GitHub connection status.");
     } finally {
       setIsLoading(false);
@@ -45,7 +45,7 @@ export function useGitHubSync() {
       const { data } = await githubSyncService.getConnectUrl();
       // Redirect user to GitHub
       window.location.href = data.url;
-    } catch (err) {
+    } catch {
       setError("Failed to initiate GitHub connection.");
     }
   }, []);
@@ -75,7 +75,7 @@ export function useGitHubSync() {
       setConnected(false);
       setConnection(null);
       setHistory([]);
-    } catch (err) {
+    } catch {
       setError("Failed to disconnect GitHub.");
     }
   }, []);
@@ -88,7 +88,7 @@ export function useGitHubSync() {
         is_enabled: !connection.is_enabled,
       });
       setConnection(data.connection);
-    } catch (err) {
+    } catch {
       setError("Failed to update sync setting.");
     }
   }, [connection]);
@@ -112,7 +112,7 @@ export function useGitHubSync() {
       await githubSyncService.retryPush(logId);
       // Refresh history after retry
       await fetchHistory();
-    } catch (err) {
+    } catch {
       setError("Failed to retry push.");
     }
   }, [fetchHistory]);
diff --git a/services/executor/conftest.py b/services/executor/conftest.py
new file mode 100644
index 0000000..26bc3b9
--- /dev/null
+++ b/services/executor/conftest.py
@@ -0,0 +1,11 @@
+"""
+Test configuration for executor service.
+Forces auth to be disabled during test runs regardless of CI environment.
+"""
+
+import os
+
+# Force-disable auth for tests (overrides CI env vars)
+os.environ["INTERNAL_API_KEY"] = ""
+os.environ["INTERNAL_SIGNING_SECRET"] = ""
+os.environ["INTERNAL_REQUIRE_SIGNATURE"] = "false"