fix: fallback to default DB for LLM config lookup

- _get_llm_config now tries module DB and 'default' DB
- Adds logging to show which DB is accessed
- Prevents empty config when table is in default DB

harnessed_agent/llm_client.py

@@ -77,20 +77,29 @@ LLM_PROVIDERS = {
 
 async def _get_llm_config() -> Dict[str, Any]:
     """Get LLM client configuration from harnessed_agent_config table."""
+    dbnames_to_try = ['default']
     try:
         env = ServerEnv()
-        dbname = env.get_module_dbname('harnessed_agent')
+        module_db = env.get_module_dbname('harnessed_agent')
+        if module_db not in dbnames_to_try:
+            dbnames_to_try.insert(0, module_db)
     except Exception:
-        dbname = 'default'
+        pass
 
-    try:
-        async with DBPools().sqlorContext(dbname) as sor:
-            rows = await sor.R('harnessed_agent_config', {},
-                               orderby='updated_at DESC', limit=1)
-            if rows:
-                return rows[0]
-    except Exception as e:
-        error(f"Failed to fetch LLM config: {e}")
+    for dbname in dbnames_to_try:
+        try:
+            async with DBPools().sqlorContext(dbname) as sor:
+                rows = await sor.R('harnessed_agent_config', {},
+                                   orderby='updated_at DESC', limit=1)
+                if rows:
+                    info(f"Loaded LLM config from DB '{dbname}'")
+                    return rows[0]
+                else:
+                    warning(f"No rows in harnessed_agent_config in DB '{dbname}'")
+        except Exception as e:
+            error(f"Failed to fetch LLM config from DB '{dbname}': {e}")
+    
+    error("LLM config not found in any database")
     return {}