feat: video-flow initial commit

- app.py: Streamlit UI for video generation workflow
- main_flow.py: CLI tool with argparse support
- modules/: Business logic modules (script_gen, image_gen, video_gen, composer, etc.)
- config.py: Configuration with API keys and paths
- requirements.txt: Python dependencies
- docs/: System prompt documentation

volcengine_binary_demo/pyproject.toml

@@ -0,0 +1,11 @@
+[build-system]
+requires = ["setuptools>=42", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "volc-speech-python-sdk"
+version = "0.1.0"
+requires-python = ">=3.9"
+dependencies = [
+    "websockets>=14.0",
+]