June 25 - Implement reminder

app.py

@@ -56,6 +56,7 @@ def create_app():
     from routes.user_dashboard import user_dashboard_bp
     from routes.ai_summary import ai_summary_bp
     from routes.bid_tracker import bid_tracker_bp
+    from routes.internal import internal_bp
 
     app.register_blueprint(auth_bp)
     app.register_blueprint(admin_dashboard_bp)
@@ -68,6 +69,13 @@ def create_app():
     app.register_blueprint(user_dashboard_bp)
     app.register_blueprint(ai_summary_bp)
     app.register_blueprint(bid_tracker_bp)
+    app.register_blueprint(internal_bp)
+
+    if not os.environ.get("CRON_SECRET"):
+        logger.warning(
+            "CRON_SECRET not set in .env — the /internal/cron/* endpoints are "
+            "disabled. Set CRON_SECRET to enable automated shift reminders."
+        )
 
     # ── CSRF protection (Flask-WTF) ────────────────────────────────────────────
     from flask_wtf.csrf import CSRFProtect