chore(main): release 0.8.0

[github-actions]

🤖 I have created a release beep boop

0.8.0 (2026-08-20)

Features

• security: path-jail primitive, credential-store locking, worktree git hardening (#891) (060d38c)
• use Exa as default search provider (#926) (1ec7219)
• zerogit: auto-create a conventional branch before push/pr on default branch (#671) (d065467)

Bug Fixes

• acp: three defects a desktop ACP client hits (#915) (a78c6c3)
• bump Go to 1.26.6 for stdlib vulnerability fixes (#903) (dc15e82)
• daemon: clean up child after startup timeout (#774) (9c29209)
• dictation: redact API keys from streaming transcriber errors (#852) (64a783b)
• providers: discover ChatGPT capabilities (#890) (2d2450e)

---

This PR was generated with Release Please. See documentation.

[github-actions]

Zero automated PR review

Verdict: No blockers found

Blockers

• None found.

Validation

• [pass] Diff hygiene: git diff --check
• [pass] Tests: go test ./...
• [pass] Build: go run ./cmd/zero-release build
• [pass] Smoke build: go run ./cmd/zero-release smoke

Scope

Head: 9f94311c2979
Changed files (4): .release-please-manifest.json, CHANGELOG.md, package-lock.json, package.json

This deterministic review checks validation status and basic diff hygiene. A human reviewer still owns product judgment and design quality.