fix: add ffmpeg, uploads volume to Docker deployment for Phase 2

- Dockerfile: install ffmpeg for video audio extraction, create /app/uploads
- docker-compose.yml: add uploads_data volume mount
- README: add uploads_data to volumes table

Dockerfile

@@ -15,9 +15,10 @@ FROM python:3.11-slim
 
 WORKDIR /app
 
-# Install system dependencies
+# Install system dependencies (ffmpeg for video audio extraction)
 RUN apt-get update && apt-get install -y --no-install-recommends \
     tini \
+    ffmpeg \
     && rm -rf /var/lib/apt/lists/*
 
 # Install Python dependencies
@@ -31,7 +32,7 @@ COPY backend/ ./
 COPY --from=frontend-build /app/frontend/dist ./frontend/dist
 
 # Create data directories
-RUN mkdir -p /app/chroma_db /app/document_chunk /app/data /app/app/log
+RUN mkdir -p /app/chroma_db /app/document_chunk /app/data /app/uploads /app/app/log
 
 # Expose port
 EXPOSE 8000

README.md

@@ -50,6 +50,7 @@ The app is served at `http://localhost:8000` — both the API and the frontend U
 | `chroma_data` | ChromaDB vector store (persistent) |
 | `chunk_data` | Extracted PDF page files |
 | `sqlite_data` | Prompt templates and query history |
+| `uploads_data` | Uploaded video files (persistent) |
 
 ### Environment Variables
 

docker-compose.yml

@@ -12,6 +12,7 @@ services:
       - chroma_data:/app/chroma_db
       - chunk_data:/app/document_chunk
       - sqlite_data:/app/data
+      - uploads_data:/app/uploads
     restart: unless-stopped
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:8000/health"]
@@ -24,3 +25,4 @@ volumes:
   chroma_data:
   chunk_data:
   sqlite_data:
+  uploads_data: