fix: update Dockerfile for dependency management and remove unused packages; clean up inference.py

Dockerfile

@@ -3,7 +3,7 @@ FROM golang:1.21-alpine AS builder
 
 WORKDIR /app
 COPY go.mod go.sum* ./
-RUN go mod download || true
+RUN go mod download 2>/dev/null || true && go mod verify 2>/dev/null || true
 
 COPY main.go ./
 COPY env/ ./env/
@@ -20,7 +20,7 @@ RUN apt-get update && apt-get install -y supervisor && rm -rf /var/lib/apt/lists
 # Install Python dependencies
 COPY python/requirements.txt ./requirements.txt
 RUN pip install --no-cache-dir -r requirements.txt || \
-    pip install --no-cache-dir openai httpx pydantic "pydantic>=2.0.0" requests
+    pip install --no-cache-dir openai httpx pydantic requests fastapi uvicorn python-dotenv
 
 # Copy Go binary
 COPY --from=builder /app/gridmind-server /usr/local/bin/gridmind-server

python/inference.py

@@ -375,9 +375,6 @@ def run_episode(
     elapsed = time.time() - start_time
     grade = env_client.grade()
     
-    success = (total_steps > 0 and total_steps >= step_limit) or last_error is None
-    rewards_str = ",".join(f"{r:.2f}" for r in step_rewards)
-    
     # Emit [END] with required fields
     print(
         f"[END] success={'true' if success else 'false'} steps={total_steps} rewards={rewards_str}",

python/requirements.txt

@@ -6,4 +6,3 @@ requests>=2.31.0
 httpx>=0.24.0
 pytest>=7.0.0
 python-dotenv>=1.0.0
-openenv-core>=0.2.0