docs: update CHANGELOG and fix template count (69→65)

Changes:
- CHANGELOG.md: Document cross-reference addition and template count fix
- README.md: Correct template count from 69 to 65 (badge, summary, table)
- CLAUDE.md: Update version reference (3.9.7 → 3.9.9)

Template count verification:
- Actual count: 65 templates in examples/ (excluding README.md files)
- Previous count of 69 was overcounted by 4 templates since v3.9.9

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -6,6 +6,23 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+### Changed
+
+- **README.md: Ecosystem cross-reference** — Added bidirectional link to Claude Cowork Guide
+  - New section "Not a Developer?" (lines 75-81) linking to Cowork Guide for non-technical users
+  - Improves ecosystem discovery and audience routing between dev and non-dev guides
+  - Cowork Guide also received reciprocal cross-reference (commit ceadd82 in Cowork repo)
+- **CLAUDE.md: Version reference update** — Updated current version from 3.9.7 to 3.9.9
+
+### Fixed
+
+- **README.md: Template count correction** — Fixed template count from 69 to accurate count of 65
+  - Badge (line 9): 69 → 65
+  - Examples Library summary (line 198): 66 → 65
+  - Ecosystem table (line 341): 66 → 65
+  - Verified with `find examples/ -type f \( -name "*.md" -o -name "*.sh" ... \) ! -name "README.md" | wc -l`
+  - Original count of 69 in v3.9.9 release was overcounted by 4 templates
+
 ## [3.9.9] - 2026-01-20
 
 ### Added

CLAUDE.md

@@ -38,7 +38,7 @@ tools/                    # Interactive utilities
 
 | File | Purpose |
 |------|---------|
-| `VERSION` | Single source of truth for version (currently 3.9.7) |
+| `VERSION` | Single source of truth for version (currently 3.9.9) |
 | `guide/ultimate-guide.md` | The main reference (search here first) |
 | `guide/cheatsheet.md` | Quick reference for daily use |
 | `machine-readable/reference.yaml` | LLM-optimized index with line numbers |

README.md

@@ -6,7 +6,7 @@
 
 <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="./examples/"><img src="https://img.shields.io/badge/Templates-69-green?style=for-the-badge" alt="Templates"/></a>
+  <a href="./examples/"><img src="https://img.shields.io/badge/Templates-65-green?style=for-the-badge" alt="Templates"/></a>
   <a href="./quiz/"><img src="https://img.shields.io/badge/Quiz-227_questions-orange?style=for-the-badge" alt="Quiz"/></a>
 </p>
 
@@ -195,7 +195,7 @@ claude-code-ultimate-guide/
 </details>
 
 <details>
-<summary><strong>Examples Library</strong> (69 templates)</summary>
+<summary><strong>Examples Library</strong> (65 templates)</summary>
 
 **Agents** (6): [code-reviewer](./examples/agents/code-reviewer.md), [test-writer](./examples/agents/test-writer.md), [security-auditor](./examples/agents/security-auditor.md), [refactoring-specialist](./examples/agents/refactoring-specialist.md), [output-evaluator](./examples/agents/output-evaluator.md), [devops-sre](./examples/agents/devops-sre.md) ⭐
 
@@ -338,7 +338,7 @@ Claude Code sends your prompts, file contents, and MCP results to Anthropic serv
 
 | Repository | Purpose | Audience |
 |------------|---------|----------|
-| **[Claude Code Guide](https://github.com/FlorianBruniaux/claude-code-ultimate-guide)** *(this repo)* | Comprehensive documentation (11K lines, 69 templates) | Developers |
+| **[Claude Code Guide](https://github.com/FlorianBruniaux/claude-code-ultimate-guide)** *(this repo)* | Comprehensive documentation (11K lines, 65 templates) | Developers |
 | **[Claude Cowork Guide](https://github.com/FlorianBruniaux/claude-cowork-guide)** | Non-technical usage (67 prompts, 5 workflows) | Knowledge workers |
 | **Code Landing** *(to be deployed)* | Marketing site for Claude Code guide | Discovery |
 | **Cowork Landing** *(to be deployed)* | Marketing site for Cowork guide | Discovery |