docs: add Talk Preparation Pipeline workflow + skill templates

6-stage pipeline: raw material → conference talk → Kimi AI slides.

New files:
- guide/workflows/talk-pipeline.md — Full workflow guide (REX vs Concept
  modes, stage-by-stage breakdown, CHECKPOINT mechanics, Kimi handoff,
  real-world DevWithAI example, 5 design patterns documented)
- examples/skills/talk-pipeline/ — 7 SKILL.md files + orchestrator + 2
  templates (feedback-draft.md, kimi-prompt-template.md)

Updated:
- README.md — badges 164→172 templates, Feb 20 date, 13→14 skills
- guide/workflows/README.md — Talk Pipeline entry under Design & Content
- machine-readable/reference.yaml — 16 new entries for pipeline components
- CHANGELOG.md — [Unreleased] entry

Design patterns showcased: skill chaining + file-based state, tool
permission scoping (Bash only Stage 2), human-in-the-loop CHECKPOINT
(Stage 4), AI-to-AI handoff (Claude → Kimi), dual execution modes
(REX/Concept).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

@@ -6,9 +6,9 @@
 
 <p align="center">
   <a href="https://github.com/FlorianBruniaux/claude-code-ultimate-guide/stargazers"><img src="https://img.shields.io/github/stars/FlorianBruniaux/claude-code-ultimate-guide?style=for-the-badge" alt="Stars"/></a>
-  <a href="./CHANGELOG.md"><img src="https://img.shields.io/badge/Updated-Feb_19,_2026_·_v3.27.8-brightgreen?style=for-the-badge" alt="Last Update"/></a>
+  <a href="./CHANGELOG.md"><img src="https://img.shields.io/badge/Updated-Feb_20,_2026_·_v3.27.8-brightgreen?style=for-the-badge" alt="Last Update"/></a>
   <a href="./quiz/"><img src="https://img.shields.io/badge/Quiz-274_questions-orange?style=for-the-badge" alt="Quiz"/></a>
-  <a href="./examples/"><img src="https://img.shields.io/badge/Templates-164-green?style=for-the-badge" alt="Templates"/></a>
+  <a href="./examples/"><img src="https://img.shields.io/badge/Templates-172-green?style=for-the-badge" alt="Templates"/></a>
   <a href="./guide/security-hardening.md"><img src="https://img.shields.io/badge/🛡️_Threat_DB-19_CVEs_·_655_malicious_skills-red?style=for-the-badge" alt="Threat Database"/></a>
 </p>
 
@@ -50,7 +50,7 @@ Both guides serve different needs. Choose based on your priority.
 | **Security hardening** | Only threat database (18 CVEs) | Basic patterns only |
 | **Test understanding** | 274-question quiz | Not available |
 | **Methodologies** (TDD/SDD/BDD) | Full workflow guides | Not covered |
-| **Copy-paste ready** templates | 164 templates | 200+ templates |
+| **Copy-paste ready** templates | 172 templates | 200+ templates |
 
 ### Ecosystem Positioning
 
@@ -136,11 +136,11 @@ graph LR
     root[📦 Repository<br/>Root]
 
     root --> guide[📖 guide/<br/>19K lines]
-    root --> examples[📋 examples/<br/>164 templates]
+    root --> examples[📋 examples/<br/>172 templates]
     root --> quiz[🧠 quiz/<br/>274 questions]
     root --> tools[🔧 tools/<br/>utils]
     root --> machine[🤖 machine-readable/<br/>AI index]
-    root --> docs[📚 docs/<br/>78 evaluations]
+    root --> docs[📚 docs/<br/>83 evaluations]
 
     style root fill:#d35400,stroke:#e67e22,stroke-width:3px,color:#fff
     style guide fill:#2980b9,stroke:#3498db,stroke-width:2px,color:#fff
@@ -166,11 +166,11 @@ graph LR
 │  ├─ mcp-servers-ecosystem.md  Official & community MCP servers
 │  └─ workflows/          Step-by-step guides
 │
-├─ 📋 examples/           164 Production Templates
+├─ 📋 examples/           172 Production Templates
 │  ├─ agents/             6 custom AI personas
 │  ├─ commands/           26 slash commands
 │  ├─ hooks/              31 hooks (bash + PowerShell)
-│  ├─ skills/             13 skills (9 on SkillHub)
+│  ├─ skills/             14 skills (9 on SkillHub)
 │  └─ scripts/            Utility scripts (audit, search)
 │
 ├─ 🧠 quiz/               264 Questions