v0.1.0 - Initial public-ready foundation

v0.1.0 establishes the first public-ready foundation of DevDetective.

Highlights:

• unified /api/investigate workflow
• GitHub repository search and filtering
• reuse-oriented repo scoring
• AI-generated development prompts
• Markdown investigation report export
• hosted demo now available at https://ai2work.xyz/DevDetective

Validated with:

• npm run lint
• npm run build