At chunk grain (#280) a note-pair's similarity is its closest chunk pair,
so the shared 0.82 floor saturated the note/task reports with related
families (38 note / 155 task groups against the 200-pair cap, measured
2026-08-09). Split kb_duplicate_threshold into per-kind settings keys
with per-kind defaults: snippet 0.82 (single-chunk, scale unchanged),
note/task 0.93 (points the report at genuinely-alike records). Settings
UI grows the two new knobs; report entrypoints inherit the change via
get_duplicate_threshold(user_id, kind).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UaYUaouG9jjhATyuxCKrQs
bvandeusenandClaude Fable 5