feat(improvement): expose exact author shot evidence

[drewstone]

Problem

Author-shot receipts retained output hashes but discarded the exact stdout, stderr, and post-run worktree decision. A clean or rejected attempt could therefore become unauditable after its temporary worktree was removed.

Solution

• pass a frozen exact execution snapshot as the second argument to the awaited onShotCompleted callback
• add an awaited onShotDisposition callback while the worktree is still available
• classify every completed attempt as clean, rejected, accepted, or setup-error, including exact rejection feedback and the live worktree path
• abort the candidate when either persistence callback fails
• keep existing one-argument onShotCompleted callbacks source-compatible
• bump the package and generated API reference to 0.94.11

Verification

• pnpm test: 1,574 passed, 2 skipped across 152 files
• focused agentic-generator tests: 25 passed
• pnpm typecheck: passed, including examples
• pnpm lint: 441 files passed
• pnpm build: JavaScript and declaration builds passed
• pnpm verify:package: passed
• pnpm docs:check: passed
• git merge-tree --write-tree origin/main HEAD: clean

[tangletools]

✅ Auto-approved drewstone PR — 335d4114

This PR was opened by the trusted drewstone account.
The full PR reviewer audit still runs separately and will publish findings if it detects issues.

_{tangletools · auto-approval · reason: drewstone_author · 2026-07-15T02:01:45Z}