URL = subject: one codec (evidenceAddress.ts) owns the address grammar for
every EvidenceSubject kind, including kinds whose routes are placeholders.
urlToSubject is a total inverse — malformed input yields null, never throws.
- Route params: /trace/:turnId?, /proposals/:proposalId?, /evals/:laneId?,
/replay/:artifactId? (placeholders keep flat paths)
- ?inspect= carries inspector subject + open state; EvidenceUrlSync restores
deep links and write-through syncs with replace (selection churn never
pollutes history); malformed values are dropped from the URL
- Proposals/Evals/Replay restore selection from their param on load, write it
on selection change (replace), and publish the selected subject to the
evidence context (identity at once, detail when the query resolves)
- EvidenceSubject.data now optional; inspectors render an honest
'detail not loaded' state for identity-only subjects
- Cmd+Shift+C copies origin + subjectToUrl(subject); no-op without subject;
input-focus guard; transient inline 'Copied' on the inspector header
- Fix pre-existing unbounded re-render loop in RightInspector.test.tsx
(render-phase setSubject); subjects now set from effects
