feat: add openwiki integration claude to scaffold Claude Code skills for keyless docs

[Kowshik Padala (Kowshik4593)]

Summary

Adds openwiki integration claude [path] — a CLI subcommand that scaffolds two
Claude Code skills (openwiki-init, openwiki-update) into a target repository,
so Claude Code itself generates and maintains the openwiki/ documentation
without requiring a model provider or API key.

The skill bodies are bundled templates ported from the repository-mode
instructions in src/agent/prompt.ts, with tool vocabulary remapped to Claude
Code natives (Read/Write/Edit/Glob/Grep/Bash) and connector/CLI text removed.

Test plan

• Unit tests: test/integrations-claude.test.ts (6 tests: scaffolding,
  frontmatter validity, tool names, path checks, idempotency, error handling)
• Command parsing: extended test/commands.test.ts (5 new tests for
  integration parsing, paths, unknown agents, flags)
• Full suite: 272 tests pass; format:check, lint:check, typecheck clean
• Manual E2E: scaffolds both skills to default cwd and explicit path;
  exits 0 on success, 1 on error; no API key needed
• Drift guard: added assertions that both skill bodies retain all core
  discipline sections, so an incomplete future re-port from prompt.ts fails loudly

Design notes

• Zero regression risk: new code is gated behind kind === "integration" in
  dispatch; src/agent/prompt.ts and the running agent are untouched.
• Extensible: integration registry in src/integrations/index.ts allows
  adding other host agents (Cursor, Copilot, etc.) later.
• Scope: code mode only (openwiki/ repository docs); personal mode and
  connectors remain on the credentialed runtime.
• Template drift: skill templates are a hand-maintained copy of
  prompt.ts's repository-mode instructions. The drift guard test pins core
  sections to catch incomplete re-ports; periodic sync remains a manual responsibility.

Closes #349

[corridor-security]

The integration scaffolder (openwiki integration claude [path]) follows symlinks when writing SKILL.md files into a user-supplied target directory, enabling a symlink-based arbitrary file overwrite if a malicious repository has pre-placed a symlink at the expected destination path.

[Kowshik Padala (Kowshik4593)]

Colin Francis (@colifran) — could you review this PR? It implements a native openwiki integration claude [path] subcommand that scaffolds two Claude Code skills, so users can generate and maintain openwiki/ docs directly from Claude Code without an OpenWiki API key.

Key points:

The skill bodies are bundled templates derived from src/agent/prompt.ts's repository-mode instructions, with tool vocabulary remapped to Claude Code natives (Read/Write/Edit/Glob/Grep/Bash).
Zero regression risk: the live agent and prompt are untouched; this is a pure CLI export step gated behind its own subcommand.
The skills write the exact same openwiki/quickstart.md, section pages, and .last-update.json format as the CLI, so the two are interchangeable on one repo.
Scope: code mode only (repository docs). Personal mode and connectors stay on the credentialed runtime.

[Kowshik Padala (Kowshik4593)]

Colin Francis (Colin Francis (@colifran)) — could you review this PR? It implements a native openwiki integration claude [path] subcommand that scaffolds two Claude Code skills, so users can generate and maintain openwiki/ docs directly from Claude Code without an OpenWiki API key.

Key points:

The skill bodies are bundled templates derived from src/agent/prompt.ts's repository-mode instructions, with tool vocabulary remapped to Claude Code natives (Read/Write/Edit/Glob/Grep/Bash). Zero regression risk: the live agent and prompt are untouched; this is a pure CLI export step gated behind its own subcommand. The skills write the exact same openwiki/quickstart.md, section pages, and .last-update.json format as the CLI, so the two are interchangeable on one repo. Scope: code mode only (repository docs). Personal mode and connectors stay on the credentialed runtime.

just for understanding, this is in the same lines of speckit skills.

[Kowshik Padala (Kowshik4593)]

Colin Francis (@colifran) any comments?