docs: sync to Claude Code v2.1.119 (docs host migration, /usage, hooks mcp_tool, native binary) (#94)

- Migrate all docs.anthropic.com/en/docs/claude-code URLs to code.claude.com/docs/en
- Document /usage as canonical (v2.1.118); annotate /cost and /stats as shortcut aliases
- Update Opus 4.7: 1M context (v2.1.117 fix), xhigh default effort
- Note native-binary packaging (v2.1.113) and downloads.claude.ai host (v2.1.116)
- Hook events count normalized to 28 across all refs; add UserPromptExpansion, PostToolBatch
- Add mcp_tool as a fifth hook type (v2.1.118); duration_ms on PostToolUse (v2.1.119)
- Agent frontmatter mcpServers/permissionMode/--print tools honoring
- Glob/Grep -> bfs/ugrep footnote for native macOS/Linux builds
- Plugin marketplace enforcement (v2.1.117) + hostPattern/pathPattern (v2.1.119)
- --from-pr supports GitLab MR, Bitbucket PR, GitHub Enterprise (v2.1.119)
- Document 5 new env vars: DISABLE_UPDATES, CLAUDE_CODE_HIDE_CWD, CLAUDE_CODE_FORK_SUBAGENT, ENABLE_TOOL_SEARCH, OTEL_LOG_TOOL_DETAILS
- Deprecate includeCoAuthoredBy and voiceEnabled; add prUrlTemplate setting
- Add new features: /theme, /btw, claude plugin tag, claude install [version], sandbox.network.deniedDomains, auto mode "\$defaults", wslInheritsWindowsSettings, Vim visual modes, /doctor improvements, forked subagents, disableSkillShellExecution
- Refresh footers to Last Updated April 24, 2026 / Claude Code Version 2.1.119

08-checkpoints/README.md

@@ -221,6 +221,15 @@ The only checkpoint-related setting is `cleanupPeriodDays`, which controls how l
 
 - `cleanupPeriodDays`: Number of days to retain session history and checkpoints (default: `30`)
 
+> **v2.1.117 update**: `cleanupPeriodDays` now governs retention for four on-disk caches, not just checkpoints:
+>
+> - Session checkpoints
+> - `~/.claude/tasks/` — persistent task lists
+> - `~/.claude/shell-snapshots/` — captured shell-environment snapshots
+> - `~/.claude/backups/` — rolling setting / CLAUDE.md backups
+>
+> A single setting now prunes all four directories uniformly after the same number of days.
+
 ## Limitations
 
 Checkpoints have the following limitations:
@@ -316,10 +325,10 @@ Remember: checkpoints are not a replacement for git. Use checkpoints for rapid e
 
 ---
 
-**Last Updated**: April 16, 2026
-**Claude Code Version**: 2.1.112
+**Last Updated**: April 24, 2026
+**Claude Code Version**: 2.1.119
 **Sources**:
-- https://docs.anthropic.com/en/docs/claude-code/checkpointing
-- https://www.anthropic.com/news/claude-opus-4-7
-- https://support.claude.com/en/articles/12138966-release-notes
+- https://code.claude.com/docs/en/checkpointing
+- https://code.claude.com/docs/en/settings
+- https://github.com/anthropics/claude-code/releases/tag/v2.1.117
 **Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5