fix: remove healthcheck causing container to never start

Dockerfile

@@ -1,9 +1,9 @@
 FROM python:3.11-slim
 
-EXPOSE 7860
-
 WORKDIR /app
 
+EXPOSE 7860
+
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
@@ -12,12 +12,4 @@ COPY . .
 RUN useradd -m -u 1000 appuser && chown -R appuser:appuser /app
 USER appuser
 
-HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
-  CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:7860/')" || exit 1
-
-# ════════════════════════════════════════════════════════
-# ▶▶  CHANGE 2: Pass your Gemini key when running Docker:
-#     docker run -p 7860:7860 -e GEMINI_API_KEY=your_key .
-#     On Hugging Face Spaces: set it in Settings → Secrets
-# ════════════════════════════════════════════════════════
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]