feat(engine/ollama.ts): extract message from response data and clean content by removing unnecessary tags (#445)

Co-authored-by: Bastien Mottier <b.mottier@viously.com>

src/engine/ollama.ts

@@ -33,9 +33,14 @@ export class OllamaEngine implements AiEngine {
         params
       );
 
-      const message = response.data.message;
+      const { message } = response.data;
+      let content = message?.content;
 
-      return message?.content;
+      if (content && content.includes('<think>')) {
+        return content.replace(/<think>[\s\S]*?<\/think>/g, '').trim();
+      }
+
+      return content;
     } catch (err: any) {
       const message = err.response?.data?.error ?? err.message;
       throw new Error(`Ollama provider error: ${message}`);