chore(voyage): release v5.0.1 — drop standalone HTML render; print literal /playground document-critique invocation

The v5.0.0 stop-gap had /trekbrief, /trekplan, and /trekreview each render
a read-only {artifact}.html (via scripts/render-artifact.mjs) AND print a
vague "run the /playground plugin" instruction. In practice the read-only
HTML was redundant with what /playground produces and the instruction
wasn't copy-paste-ready — the operator had to guess the right invocation.

v5.0.1 deletes scripts/render-artifact.mjs + its test + npm run render,
and makes each producing command end with a single boxed, literal,
copy-paste-ready line:

    /playground build a document-critique playground for {artifact_path}

One paste from the operator launches the official playground skill's
document-critique template, which builds an interactive HTML — artifact
on the left, per-line Approve/Reject/Comment cards on the right, Copy
Prompt button at the bottom. Mark suggestions, click Copy Prompt, paste
back, Claude revises the .md. Doc-consistency test pins the literal
invocation so the prose cannot soften back into vagueness.

npm test green: 503 tests, 501 pass, 0 fail, 2 skipped.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

plugins/voyage/CLAUDE.md

@@ -232,42 +232,41 @@ Local Docker Compose stack: `examples/observability/`. Operator docs: `docs/obse
 
 **Continue:** `/trekcontinue` reads `{dir}/.session-state.local.json` (Handover 7), validates schema-v1 via `session-state-validator`, narrates a 3-line summary (project / next-session-label / brief-path), and immediately begins executing the next session. Auto-discovers active project state files under `.claude/projects/*/.session-state.local.json` if no explicit `<project-dir>` argument. Operator-invoked only — never auto-loaded via SessionStart. The `/trekendsession` helper is the informal-flow producer: writes the same state file for ad-hoc multi-session handovers that don't run through `/trekexecute`.
 
-**Render-and-link (v5.0.0):** the last step of `/trekbrief`, `/trekplan`, and `/trekreview` renders the just-written `.md` artifact to a self-contained `.html` in the same project directory (`scripts/render-artifact.mjs` — zero npm deps, zero external network, design-system-styled, frontmatter folded into a `<details>` block) and prints the `file://` link. To annotate, the operator runs the official `/playground` plugin (`document-critique` template) on the `.md` and pastes the generated prompt back into the conversation; Claude revises the artifact freehand. This replaces the v4.2/v4.3 bespoke playground SPA + `/trekrevise` + Handover 8 (annotation → revision), all removed in v5.0.0 — see [CHANGELOG.md](CHANGELOG.md) § v5.0.0 for why (the bespoke playground duplicated capabilities the official `/playground` plugin already provides).
+**Post-command annotation invocation (v5.0.1):** the last step of `/trekbrief`, `/trekplan`, and `/trekreview` prints — verbatim — a copy-paste-ready `/playground` command pointing at the just-written artifact. Concretely: `/playground build a document-critique playground for {abs_path}/{artifact}.md`. When the operator pastes that into Claude, the official `claude-plugins-official` `playground` skill loads its `document-critique` template, reads the `.md`, generates per-line suggestions, and writes a single self-contained HTML file with the artifact nicely formatted on the left, Approve/Reject/Comment cards on the right, and a "Copy Prompt" button at the bottom. The operator marks suggestions, clicks Copy Prompt, pastes the prompt back into Claude — Claude revises the artifact freehand from the notes. **One paste → playground → mark → copy → paste back.** The v5.0.0 standalone `.html` render (`scripts/render-artifact.mjs`) was a separate read-only view that did not afford annotation; v5.0.1 dropped it because it was redundant with the `/playground` HTML (which already shows the artifact nicely) and the two HTMLs created operator confusion. The v4.2/v4.3 bespoke playground SPA + `/trekrevise` + Handover 8 — all removed in v5.0.0 — were never re-introduced. See [CHANGELOG.md](CHANGELOG.md) § v5.0.1.
 
 **Security:** 4-layer defense-in-depth: plugin hooks (pre-bash-executor, pre-write-executor), prompt-level denylist (works in headless sessions), pre-execution plan scan (Phase 2.4), scoped `--allowedTools` replacing `--dangerously-skip-permissions`. Hard Rules 14-16 enforce verify command security, repo-boundary writes, and sensitive path protection.
 
-**Pipeline:** `/trekbrief` produces the task brief. `/trekresearch --project <dir>` fills in `{dir}/research/`. `/trekplan --project <dir>` reads brief + research to produce `{dir}/plan.md` (and auto-discovers `{dir}/architecture/overview.md` if an opt-in upstream architect plugin produced one). `/trekexecute --project <dir>` executes and writes `{dir}/progress.json`. `/trekreview --project <dir>` produces `{dir}/review.md`. `/trekbrief`, `/trekplan`, and `/trekreview` each render their artifact to `{dir}/{artifact}.html` and print the link (annotate via the `/playground` plugin). All artifacts live in one project directory.
+**Pipeline:** `/trekbrief` produces the task brief. `/trekresearch --project <dir>` fills in `{dir}/research/`. `/trekplan --project <dir>` reads brief + research to produce `{dir}/plan.md` (and auto-discovers `{dir}/architecture/overview.md` if an opt-in upstream architect plugin produced one). `/trekexecute --project <dir>` executes and writes `{dir}/progress.json`. `/trekreview --project <dir>` produces `{dir}/review.md`. `/trekbrief`, `/trekplan`, and `/trekreview` each end by printing a copy-paste-ready `/playground build a document-critique playground for {artifact_path}` command — the operator pastes it into Claude to launch the official `playground` skill (`document-critique` template), which builds an interactive HTML for browser annotation. All `.md` artifacts live in one project directory.
 
 **Project-directory contract (v3.0.0):** trekplan owns the directory layout below. The `architecture/` subdirectory is opt-in and produced by an opt-in upstream architect plugin (not bundled) — the architect plugin is no longer publicly distributed, but the `architecture/overview.md` slot remains available for any compatible producer.
 
 ```
 .claude/projects/{YYYY-MM-DD}-{slug}/
   brief.md           ← trekbrief writes; everyone reads
-  brief.html         ← trekbrief renders (self-contained; for browser viewing / /playground)
   research/*.md      ← trekresearch writes; plan + architect read
   architecture/      ← OPT-IN, owned by an opt-in upstream architect plugin (not bundled)
     overview.md
     gaps.md
   plan.md            ← trekplan writes; trekexecute reads
-  plan.html          ← trekplan renders
   progress.json      ← trekexecute writes
   review.md          ← trekreview writes; trekplan reads (Handover 6)
-  review.html        ← trekreview renders
 ```
 
+When an operator runs the `/playground build a document-critique playground for <artifact>` command that the producing commands print, the `playground` skill writes the resulting HTML into its own working directory (typically next to the project dir or in `/tmp/`); voyage does not own the `.html` filename. The annotation HTML is ephemeral — re-built on each invocation from the current `.md` source.
+
 No code-level dependency between plugins — the contract is filesystem-level only.
 
 ## State
 
 All artifacts in one project directory (default):
 - Project root: `.claude/projects/{YYYY-MM-DD}-{slug}/`
-  - `brief.md` + `brief.html` (task brief from `/trekbrief`; `.html` is the self-contained rendered view)
+  - `brief.md` (task brief from `/trekbrief`)
   - `research/{NN}-{slug}.md` (research briefs from `/trekresearch --project`)
   - `architecture/overview.md` + `architecture/gaps.md` (opt-in, produced by an opt-in upstream architect plugin, not bundled)
-  - `plan.md` + `plan.html` (from `/trekplan --project`)
+  - `plan.md` (from `/trekplan --project`)
   - `sessions/session-*.md` (from `--decompose`)
   - `progress.json` (from `/trekexecute --project`)
-  - `review.md` + `review.html` (from `/trekreview --project`)
+  - `review.md` (from `/trekreview --project`)
   - `.session-state.local.json` (Handover 7 — gitignored via `*.local.json`; written by `/trekexecute` Phase 8/2.55/4 or `/trekendsession`; read by `/trekcontinue`)
 
 Legacy paths (still work without `--project`):