feat: today's UI surgery + hackathon submission packet

feat(ui): bigger Send, co-create placeholder, project seed, edge-label wrap, find-conn working-bubble

refactor+ui: drop propose_* tool family; trim legend + align Send + autoscroll

feat(find-connection): AI-articulated surprising link + chat insight

feat: open-world trust-loop UX (chat-first review, edge review, layout reshape)

fix(ui): HF layout (iframe vh feedback) + selector bug + CI + trust legibility

fix(ci): make mypy env-independent for the untyped custom component

loosecanvas: local AI thought-mapping canvas with a trust-tagged knowledge graph