Merge remote-tracking branch 'github/main'

feat: harden evaluation workflows and docs

fix: add HF Spaces README metadata

Merge HF Space remote history

Deploy current project snapshot to Hugging Face Space

feat: implement hybrid RAG reasoning engine with source attribution, faithfulness scoring, and evaluation framework

Add screenshot section to README

Update README.md

Reorganize License section in README.md

Fix typo in contributor's name

Revise contributing guidelines and add project credits

Revise README to update architecture and remove metadata

fix: Add HF Spaces YAML config and brain emoji favicon

feat: Add professional HTML landing page for backend

docs: Add comprehensive README with deployment info and architecture

Fix Vercel build: Ignore CI warnings

Trigger Vercel Redeploy

Add vercel.json to fix 404 routing

Fix HF Spaces config: Move Dockerfile to root and add metadata

Configure for HF Spaces deployment - Removed large CSV

docker_add

Delete FIX_SQLALCHEMY_F405.md

Delete COMPLETE_FIX_SUMMARY.md

Delete CHANGES_IMAGE_PREVIEW_FIX.md

Initial commit of MEXAR Ultimate - Phase 2 cleanup complete