feat(update-claude-skills): add update skill + scripts [v0.1.0]

New skill and cross-platform scripts that automate the full uplift cycle:
git pull → conditionally rebuild MCP servers → install skills → version
diff → reload hints. Claude-Code-only (Hermes uses hermes-installer-skill).

- scripts/update.sh: bash version (Linux/macOS/git-bash)
- scripts/update.ps1: PowerShell version (Windows)
- skills/update-claude-skills/SKILL.md: thin wrapper, detects platform
- hermes/mapping.yaml: mode: skip (Claude-Code-only)
- dist/update-claude-skills.skill: built archive
- .tasks/STATUS.md: task marked done

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

dist-hermes/SKIPPED.md

@@ -12,6 +12,7 @@ Do not edit by hand — edit the mapping and re-run the build.
 - **caveman-review** — Caveman family — cheap-model context, no compression motive.
 - **find-skills** — Hermes has built-in skills_list() / progressive disclosure.
 - **setup-interns** — Hermes itself is a cheap-intern model — the delegation tier collapses.
+- **update-claude-skills** — Claude-Code-only orchestrator — Hermes uses hermes-installer-skill instead.
 - **using-interns** — Hermes itself is a cheap-intern model — the delegation tier collapses.
 
 ## Pending (deferred to follow-up tasks)