docs: add tags to HF Space frontmatter for discoverability

docs: README — fine-tune narrative + hybrid pipeline diagram + model URLs

fix: switch to Docker SDK so Python + launch are fully under our control

fix: remove python_version pin (was breaking gradio 4.44.1 launch on HF Spaces)

fix: pin python 3.10 (3.11 hit gradio localhost-check runtime error)

feat: MediaPipe+MLP landmark classifier — 90% ASL fingerspelling accuracy

Switch to Qwen3-only stack: VLM=Qwen3-VL-32B, composer=Qwen3-8B

docs(readme): tighten Why AMD + add For Deaf-led teams section

fix: 4 BLOCKERs + 6 IMPORTANTs from deep-check audit

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

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

fix: shorten README short_description to <60 chars (HF Space requirement)

chore: drop Build-in-Public extra challenge

feat: SignBridge initial scaffold + tests