Fix OpenAI provider config: Add models array and skip placeholder API keys

- Add models array to openai provider to satisfy schema validation
- Skip creating openai provider if API key is placeholder or starts with sk-or- (OpenRouter)

scripts/sync_hf.py

@@ -529,11 +529,15 @@ class OpenClawFullSync:
             # Build providers from scratch — only include providers with active API keys.
             # This ensures removed secrets don't leave stale providers from backup.
             providers = {}
-            if OPENAI_API_KEY:
+            if OPENAI_API_KEY and OPENAI_API_KEY != "your_openai_api_key_here" and not OPENAI_API_KEY.startswith("sk-or-"):
                 providers["openai"] = {
                     "baseUrl": OPENAI_BASE_URL,
                     "apiKey": OPENAI_API_KEY,
                     "api": "openai-completions",
+                    "models": [
+                        {"id": "gpt-4o-mini", "name": "GPT-4o Mini"},
+                        {"id": "gpt-4o", "name": "GPT-4o"},
+                    ]
                 }
                 print(f"[SYNC] Set OpenAI-compatible provider (baseUrl={OPENAI_BASE_URL})")
             if OPENROUTER_API_KEY: