v0.1.0

Initial public release.

Highlights:

• CLI and Qt GUI workflows
• Course and lesson route collection
• PPT download, PDF export, and OCR pipeline
• Keyword extraction and LLM refinement
• Alibaba Cloud Tingwu transcription integration
• Review material generation from lesson assets

Notes:

• Runtime data, browser profiles, and local secrets are intentionally excluded from
  version control
• Use .env.example and env.local.ps1.example as local configuration templates