fix(hooks): reawaken jobs without replacing user hooks

[Lint111]

Summary

• Add a self-contained PostToolUse hook for background Bash commands.
• Watch Claude's durable transcript queue for the matching task completion and request an async reawake without injecting terminal input.
• Refresh stale Codeman hooks on launch so existing cases gain the current secret and reawake behavior.
• Replace only Codeman-owned handlers while preserving user events, matchers, and sibling handlers.

Root causes

Background commands can complete while the agent is idle, but completion alone did not reliably wake the agent. Injecting terminal input is unsafe because it can submit a user's draft, so the hook observes the transcript instead.

The initial refresh implementation also treated the entire hooks object as Codeman-owned when any handler referenced /api/hook-event. Mixed configurations therefore lost unrelated user hooks during self-healing. Ownership is now evaluated per handler.

Scope

This is the hook lifecycle slice extracted from #173. It includes hook configuration, its reference documentation, production call-site renames, and focused tests. It does not change terminal transport or mobile UI behavior.

Validation

• npx vitest run --config config/vitest.config.ts test/hooks-config.test.ts test/hook-secret-selfheal.test.ts: 62 passed
• npm run build: passed
• Commit formatting hook: passed
• git diff --check: passed