fix agent error handling, add Dockerfile for HF Spaces

- Fix AgentResult dataclass using wrong Field import
- Surface LLM errors instead of silently failing
- Add Dockerfile for Hugging Face Spaces deployment
- Web app reads port from PORT env var (HF requirement)

Dockerfile

@@ -0,0 +1,40 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy and install Python dependencies
+COPY pyproject.toml .
+RUN pip install --no-cache-dir \
+    fastapi>=0.100.0 \
+    litellm>=1.81.3 \
+    openai>=1.101.0 \
+    pydantic>=2.11.7 \
+    python-dotenv>=1.1.1 \
+    python-multipart>=0.0.6 \
+    uvicorn>=0.23.0 \
+    tavily-python>=0.7.11 \
+    openpyxl>=3.1.5 \
+    pandas>=2.3.3 \
+    pymupdf>=1.26.7 \
+    scikit-learn>=1.0.0 \
+    tqdm>=4.67.1 \
+    numpy \
+    mcp>=1.13.1 \
+    fastmcp>=2.11.3 \
+    tiktoken
+
+# Copy application code
+COPY agent_framework/ agent_framework/
+COPY agent_tools/ agent_tools/
+COPY rag/ rag/
+COPY web_app/ web_app/
+
+# HF Spaces runs on port 7860
+EXPOSE 7860
+
+CMD ["uvicorn", "web_app.app:app", "--host", "0.0.0.0", "--port", "7860"]

agent_framework/agent.py

@@ -211,8 +211,22 @@ class Agent:
        
         # Get LLM's decision
         llm_response = await self.think(llm_request)
-        
-        
+
+        # Handle LLM errors - surface them instead of silently failing
+        if llm_response.error_message:
+            error_content = [Message(
+                role="assistant",
+                content=f"Error from LLM: {llm_response.error_message}"
+            )]
+            error_event = Event(
+                execution_id=context.execution_id,
+                author=self.name,
+                content=error_content,
+            )
+            context.add_event(error_event)
+            context.final_result = error_content[0].content
+            return
+
         # Record LLM response as an event
         response_event = Event(
             execution_id=context.execution_id,

web_app/app.py

@@ -240,5 +240,6 @@ app.mount("/static", StaticFiles(directory=static_dir), name="static")
 
 if __name__ == "__main__":
     import uvicorn
-    uvicorn.run(app, host="0.0.0.0", port=8000)
+    port = int(os.getenv("PORT", 7860))
+    uvicorn.run(app, host="0.0.0.0", port=port)