docs(topics): flip boris-video-absorption Phase 8 to DONE after medley trial

[kyle-sexton]

What

Flips the last open phase tag in docs/topics/boris-video-absorption/PLAN.md — Phase 8 (post-merge trial) — to [DONE], with a short trial record.

Trial summary (medley, 2026-07-21, local-only)

• Config surface resolved with per-key provenance (local overlay .claude/testing/e2e.local.md; team + user-global layers absent)
• recording: video honored — WebM artifact on disk (gitignored in consumer repo)
• Induced prereq failure (run before orchestrator start) → hard STOP + structured verification-environment gap report
• Evidence table carried session artifacts (recording path, playwright session ID, transcript pointers)
• Bonus: explicit "run this headed" prompt beat the overlay's browser_mode: headless
• Operator reviewed the recording

Docs-only; no plugin content changes.

Related

No linked issue. Related: #845 (phases 1–7 of the same PLAN, merged).

[claude]

Claude finished @kyle-sexton's task in 49s —— View job

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PR Review

• Gather context and read changed files
• Review the diff and provide feedback

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Scope: Docs-only, single file, 7 lines changed. No plugin content affected.

Summary

The change is exactly what it claims: flips Phase 8 from [TODO] to [DONE] and appends a 5-line trial record documenting the medley run.

Correctness

The trial record at L211–L215 maps faithfully to the Phase 8 sanity checks:

Sanity check	Coverage in trial record
Recording artifact exists on disk	"Evidence stayed on disk (gitignored) in the consumer repo" ✓
Gap report emitted on induced prereq failure	"all sanity checks passed" ✓
Operator reviews the recording	Stated in PR body; not explicitly in the trial record itself

The last point is a minor observation, not a blocker: the PR description says "Operator reviewed the recording" but the committed text stops at "Evidence stayed on disk." Since the sanity check text in the doc says the operator reviews the recording (an action), a one-word addition like "…; operator recording review confirmed." would make the in-file record self-contained without needing to cross-reference the PR. Entirely optional given this is a docs tracking file.

Consistency

• Placement (after the Sanity Check bullet, before the next section) matches the convention used in Phase 6's completion note.
• Phase 7 sanity check requires "all phase tags [DONE]" — this flip satisfies that condition, leaving the plan fully closed.
• No other phase tags or plan text require updating.

Verdict

Clean, minimal change with no concerns. The optional nit above is the only thing worth noting.