fix(docs): Update broken URLs, deprecations, and outdated references

- Replace docs.anthropic.com URLs with code.claude.com equivalents across all files
- Mark /review as deprecated with code-review plugin recommendation
- Fix "Sonnet 4.5" → "Sonnet 4.6" model name reference
- Update Task() → Agent() syntax in subagents documentation
- Remove undocumented /todos from slash commands table
- Add verification note about CLAUDE.local.md not in official docs

02-memory/README.md

@@ -237,6 +237,8 @@ Claude Code uses a multi-tier hierarchical memory system. Memory files are autom
 6. **Local Project Memory** - Personal project-specific preferences
    - `./CLAUDE.local.md`
 
+> **Note**: `CLAUDE.local.md` is not mentioned in the [official documentation](https://code.claude.com/docs/en/memory) as of March 2026. It may still work as a legacy feature. For new projects, consider using `~/.claude/CLAUDE.md` (user-level) or `.claude/rules/` (project-level, path-scoped) instead.
+
 7. **Auto Memory** - Claude's automatic notes and learnings
    - `~/.claude/projects/<project>/memory/`
 
@@ -1058,4 +1060,4 @@ For the most up-to-date information, refer to the official Claude Code documenta
 
 ### Related Claude Features
 - [Claude Web Memory](https://claude.ai) - Automatic synthesis
-- [Official Memory Docs](https://docs.anthropic.com/en/docs/claude-code/memory) - Anthropic documentation
+- [Official Memory Docs](https://code.claude.com/docs/en/memory) - Anthropic documentation