- ThreadContributionsBadge (rendered per-node on OpenQuestionsPanel
cards and Done-for-now cards) now shows an amber INVESTIGATING
indicator when the node has matching contributions via targetNodeId
identity match.
- UNCLEAR and INVESTIGATING cues coexist independently on the same
card — UNCLEAR is epistemic state, INVESTIGATING is activity cue.
- Deterministic test suite added: focused-investigation-history (11
tests) covering identity matching, zero-contrib edge cases,
multiple-contrib coalescing, done-for-now retention, and uncoupling
from UNCLEAR state.
- All 57 tests pass.