fix: add Dockerfile for reliable Render deployment

fiveparaminte-main/.dockerignore

@@ -0,0 +1,17 @@
+__pycache__/
+*.py[cod]
+*.db
+*.sqlite3
+*.log
+*.bin
+.env
+venv/
+.venv/
+build/
+dist/
+*.spec
+scratch/
+captures/
+.git/
+.idea/
+.vscode/

fiveparaminte-main/Dockerfile

@@ -0,0 +1,15 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+# Install dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Render sets PORT env var (default 10000)
+EXPOSE 10000
+
+CMD uvicorn main:app --host 0.0.0.0 --port ${PORT:-10000}