harden runner errors

src/Agent/AgentRunner.php

@@ -26,7 +26,9 @@ final readonly class AgentRunner
         private bool               $debug,
         private bool               $logPrompt,
         private bool               $logContext,
-    ) {}
+    )
+    {
+    }
 
     public function run(string $prompt, string $userId): Generator
     {
@@ -88,7 +90,12 @@ final readonly class AgentRunner
             $chunker = new StreamChunker();
 
             foreach ($this->ollamaClient->stream($finalPrompt) as $token) {
-                $cleanToken = $this->thinkSuppressor->filter($token);
+
+                if (!is_string($token)) {
+                    continue;
+                }
+
+                $cleanToken = $this->thinkSuppressor->filter((string)$token);
 
                 if ($cleanToken === '') {
                     continue;
@@ -108,6 +115,8 @@ final readonly class AgentRunner
             $finalChunk = $chunker->flush();
             if ($finalChunk !== null) {
                 yield $finalChunk;
+            } else {
+                yield '... no data received from llm';
             }
 
             // ---------------------------------------------------------
@@ -130,7 +139,7 @@ final readonly class AgentRunner
                 'exception' => $e,
             ]);
 
-            yield "\n❌ An internal error occurred while processing the request.";
+            yield "\n❌ An internal error occurred while processing the request. \nError: " . $e->getMessage();
         }
     }
 }