feat(linkedin-studio): S14 — journey layer (create/measure front-doors + 5-journey router), v4.1.0

14a's cold command-rationalization found ZERO redundancy across the 27 commands
(no defensible merge/cut), so the operator reframed S14 from "merge/cut" to
"add a journey layer over the kept atomics".

- Add /linkedin:create + /linkedin:measure — delegate-only guided front-doors
  (Read/Glob/AskUserQuestion only; route to the command that owns the work)
- Re-tier commands/linkedin.md into 5 journeys (Start/Create/Engage/Measure/Grow);
  onboarding/strategy elevated as Start/Grow front-doors; Engage = calendar+firsthour tier
- 14a honesty nits: router now lists firsthour; calendar cross-links to firsthour;
  competitive confirmed UNGATED (the claimed 1K-gating inconsistency was unfounded)
- Lockstep: EXPECT_COMMANDS 27->29, v4.0.0->4.1.0 across plugin.json / README badges /
  plugin+root CLAUDE.md / README / CHANGELOG; new README commands-badge lint guard
- 14a deliverable corrected: multiplatform entry added (26/27 -> 27/27), header counts,
  competitive nit withdrawn
- Independent /trekreview (2 Opus reviewers) raised 3 MAJORs (stale commands badge,
  router competitive self-contradiction, STATE.md count) — ALL remediated in-session;
  verdict ALLOW

Gate: test-runner.sh 74/0/0; node --test 98/98; commands=29; v4.1.0 consistent.
Additive/minor — no command removed/renamed/behavior-changed; reload registers create+measure.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

plugins/linkedin-studio/commands/create.md

@@ -0,0 +1,66 @@
+---
+name: linkedin:create
+description: |
+  Content-creation front-door — one guided entry for when you want to make something
+  but haven't picked the format yet. Asks what you want to create and routes you to the
+  command that owns that format (post, quick, react, carousel, video, multiplatform,
+  batch, or the long-form newsletter). It does NOT draft anything itself — it hands off
+  to the command that owns the work, so each format keeps its own voice rules and
+  quality gates.
+  Triggers on: "create", "make something", "create content", "what should I make",
+  "new content", "help me create", "i want to post something", "linkedin create".
+allowed-tools:
+  - Read
+  - Glob
+  - AskUserQuestion
+---
+
+# Create — Content Front-Door
+
+You are the entry point for the **Create** journey. The user wants to make content but
+may not know which format or command fits. Your job: identify the intent in one
+question and route to the command that owns the work. **You do not draft here.**
+
+## Step 0: Quick context (optional)
+
+If `~/.claude/linkedin-studio.local.md` exists, you may glance at the planned next
+topic and recent pillars to make a smarter suggestion — but keep it to one line and
+do not block on it.
+
+## Step 1: Identify what they want to create
+
+If the user's message already names a format (e.g. "a carousel about X", "react to
+this URL", "a video script") OR hands you a URL, skip the question and route directly
+per the map below.
+
+Otherwise use `AskUserQuestion` — **"What do you want to create?"**
+
+1. **A post** — a full, substantial post (angle → draft → refine) → `/linkedin:post`
+2. **A quick post** — a fast 5-minute post or a templated post-type → `/linkedin:quick`
+3. **React to something** — turn a URL / article / news into a post → `/linkedin:react`
+4. **A carousel** — a multi-slide / document post → `/linkedin:carousel`
+5. **A video script** — talking-head / screen-recording / slideshow → `/linkedin:video`
+6. **Adapt existing content** — for Twitter/X, slides, YouTube → `/linkedin:multiplatform`
+7. **A whole week** — batch 3–5 posts in one session → `/linkedin:batch`
+8. **Long-form** — newsletter edition, essay, or series article → `/linkedin:newsletter`
+
+## Step 2: Route
+
+State the chosen command and one line of why, then **proceed into that command's
+workflow** (route to `/linkedin:<target>` and begin it). Do NOT inline or duplicate
+the target's steps — each creation command owns its own workflow, voice rules, and
+quality gates.
+
+| Intent | Command |
+|--------|---------|
+| Substantial post | `/linkedin:post` |
+| Quick / templated post | `/linkedin:quick` |
+| React to a URL / article | `/linkedin:react` |
+| Carousel / document | `/linkedin:carousel` |
+| Video script | `/linkedin:video` |
+| Cross-platform adaptation | `/linkedin:multiplatform` |
+| A full week | `/linkedin:batch` |
+| Long-form (newsletter / essay / series) | `/linkedin:newsletter` |
+
+**Long-form lock:** newsletters, essays, and series articles are owned end-to-end by
+`/linkedin:newsletter` — the single long-form entry point. Never draft long-form here.