fix: VPS fresh-DB bootstrap — sync OPENAI_API_KEY from env to DB at startup + show countdown before first cycle

- main.py startup: if DB has no openai_api_key but OPENAI_API_KEY env var is set, auto-save it so cycle trigger returns 200 instead of 400
- Config.tsx: move NextRunCountdown outside cs?.last_cycle block so it renders even when no cycle has run yet

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/main.py

@@ -22,15 +22,25 @@ app.add_middleware(
 
 @app.on_event("startup")
 def startup():
+    import logging
+    _log = logging.getLogger(__name__)
+
     init_db()
+
     # Clean up cycles that were left in 'running' state by a previous crashed process
     stale = cleanup_stale_running_cycles()
     if stale:
-        import logging
-        logging.getLogger(__name__).warning(
-            f"[Startup] Cleaned up {stale} stale 'running' cycle(s) — server likely reloaded mid-cycle"
-        )
+        _log.warning(f"[Startup] Cleaned up {stale} stale 'running' cycle(s) — server likely reloaded mid-cycle")
+
+    # Sync OpenAI key: env var → DB (useful on fresh VPS deployments)
     key = get_config("openai_api_key") or ""
+    if not key:
+        env_key = os.environ.get("OPENAI_API_KEY", "")
+        if env_key:
+            from services.database import save_config
+            save_config("openai_api_key", env_key)
+            key = env_key
+            _log.info("[Startup] OPENAI_API_KEY synced from environment to DB config")
     if key:
         os.environ["OPENAI_API_KEY"] = key
     # Seed built-in patterns into DB (idempotent)