docs(rules): add 'research before decisions' + 'deep-check before checkpoints' to standing rules

feat(submission): generate 1280x640 cover image for HF Space + lablab

fix: clean up stale Apache 2.0 mentions + restore walkthrough spacing

fix(submission): move HF Space to event org lablab-ai-amd-developer-hackathon

fix(license): switch from Apache 2.0 to MIT to satisfy hackathon rule

docs: snapshot competition requirements as authoritative section in CLAUDE.md

docs: fill in GitHub + HF Space URLs in CLAUDE.md

chore: drop Build-in-Public extra challenge

feat: SignBridge initial scaffold + tests