Evidence and screenshot polish.
Added
- Connector guidance in the dashboard so live-source scans show credential, query, and privacy expectations before running.
- Evidence trail and export-readiness UI for opportunity detail and generated prompt review.
- Prompt generation now includes source mix, evidence focus terms, traceability checks, and current TaskSignal endpoints/schema.
Fixed
- Live scan failures now return redacted, connector-specific guidance without leaking credential values.
- README dashboard screenshot now reflects the current production UI and fixture demo data.
- API and model-card docs now match the default thematic clustering path and current scan endpoint behavior.
Verification
- Release check passed locally with backend tests, frontend tests, lint, production build, docs/tracked-file checks, secret scan, and clean worktree validation.