refactor(linkedin)!: rename plugin linkedin-thought-leadership → linkedin-studio (v3.0.0)

BREAKING CHANGE: the marketplace slug, the agent namespace
(linkedin-studio:<agent>), and the runtime state-file path
(~/.claude/linkedin-studio.local.md) all change. Reinstall required;
existing state migrated in place (post metrics, streak, history preserved).
The /linkedin:* commands are unchanged — the command namespace is set
per-command in frontmatter and was always independent of the plugin slug.
Functionality is byte-identical to v2.4.0; this release is pure identity.

- dir + manifests: plugins/linkedin-studio + plugin.json + root marketplace.json
- agent namespace updated in commands/newsletter.md (only functional invoker)
- state path updated in 4 hook scripts + topic-rotation prompt + state template
- catch-all skill dir renamed skills/linkedin-studio (5 functional skills unchanged)
- docs + version bump to 3.0.0 across README badge, CHANGELOG, root README/CLAUDE.md
- historical records (CHANGELOG past entries, docs/ build artifacts,
  config-audit v5.0.0 snapshots) intentionally retain the old slug

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

plugins/linkedin-studio/config/user-profile.template.md

@@ -0,0 +1,126 @@
+# User Profile Configuration
+
+Copy this file to `user-profile.local.md` and customize for your needs.
+
+```bash
+cp config/user-profile.template.md config/user-profile.local.md
+```
+
+---
+
+## PERSONALIZATION SETTINGS
+
+### User Profile Context
+
+**Name:** [Your Name]
+**Current Role:** [Your Role] (posting as private individual, not representing employer)
+**Organization:** [Not disclosed / Your Company]
+**Industry/Domain:** [Your Industry]
+
+**Important Disclaimer:** All articles and posts are written as a private individual. Views expressed are personal and do not represent any employer.
+
+**Core Expertise Areas (5 topics):**
+1. [Topic 1]
+2. [Topic 2]
+3. [Topic 3]
+4. [Topic 4]
+5. [Topic 5]
+
+**Target Audience:**
+- **Primary:** [Who are you primarily writing for?]
+- **Secondary:** [Secondary audience]
+- **Geographic focus:** [Region/Country]
+
+**LinkedIn Goals (ranked by priority):**
+1. [ ] Build thought leadership & authority
+2. [ ] Attract speaking opportunities
+3. [ ] Network with peers/influencers
+4. [ ] Generate qualified leads
+5. [ ] Monetization (consulting/courses)
+6. [ ] Recruit talent
+
+---
+
+### Voice & Style Profile
+
+**Tone Preferences (select what applies):**
+- [ ] Professional & authoritative
+- [ ] Conversational & approachable
+- [ ] Storytelling-focused
+- [ ] Data-driven & analytical
+- [ ] Empathetic & supportive
+- [ ] Provocative & contrarian
+
+**Content Style Mix:**
+- Story-based posts
+- Framework/how-to posts
+- Data/research posts
+- Opinion/commentary posts
+- Case study posts
+- Personal reflection posts
+
+**Signature Elements:**
+- **Key frameworks you've developed:** [Your frameworks, or "None yet"]
+- **Recurring themes/angles:** [Your themes]
+- **Phrases you commonly use:** [Your phrases]
+- **Topics to AVOID:** [Topics you never discuss]
+
+**Writing Quirks & Preferences:**
+- **Preferred post length:** [Short 150-500 / Medium 1,200-1,800 / Long 2,000+]
+- **Emoji usage:** [None / Minimal 1-2 / Moderate 3-5]
+- **Question style CTAs:** [Always / Sometimes / Never]
+- **Use of personal anecdotes:** [Always / Sometimes / Rarely]
+- **Technical depth:** [Beginner / Intermediate / Advanced / Adaptive]
+
+---
+
+### Voice Profile Summary
+
+**[Your Name] writes with:**
+
+1. **[Quality 1]:** [Description]
+2. **[Quality 2]:** [Description]
+3. **[Quality 3]:** [Description]
+4. **[Quality 4]:** [Description]
+5. **[Quality 5]:** [Description]
+
+**DO:**
+- [What you always do in your writing]
+- [Another thing you do]
+
+**DON'T:**
+- [What you never do]
+- [Another thing to avoid]
+
+**Universal anti-patterns (keep these — they hold for every author):**
+- **Modell-/navne-katalog.** Do not reel off product names, model names, or
+  benchmarks for completeness. Pick ONE concrete, verifiable (preferably local)
+  case over a list — a name-dump is a jargon wall to a non-technical reader.
+- **Fullstendighet over leser-handling.** Serve what the primary reader can DO
+  from their chair, not everything the author knows. Completeness is not a virtue.
+- **Selvrefererende overhead-åpning.** No meta-commentary about what the text will
+  or will not do, no warm-ups. Start on the reader's problem.
+- **«ikke bare X, men Y», reflex rule-of-three, tacked-on summaries, hedging.**
+
+**Language:** [English / Norwegian / Other]
+
+---
+
+### Strategic Context
+
+**Current LinkedIn Status:**
+- **Follower count:** [Your current count]
+- **90-day growth goal:** [Your goal]
+- **Posting frequency:** [Daily / 3x week / 2x week]
+- **Optimal posting times:** [Your best times, or "To be determined"]
+
+---
+
+### Asset Utilization Preferences
+
+**When creating content, Claude should:**
+- [ ] Check `/assets/examples/` for past post patterns
+- [ ] Reference frameworks from `/assets/frameworks/`
+- [ ] Pull case studies from `/assets/case-studies/`
+- [ ] Incorporate voice samples from `/assets/voice-samples/`
+- [ ] Use research/data from `/assets/research/`