Gate-pack fixtures: research + dev packs as schema'd TOML with mapping tests

[aarontrowbridge]

Closes #498.

Both gate packs as typed TOML data (packages/extension/gate-packs/): the research pack (8 gates — the five named in the issue plus ledger-currency, probe-boundary, checkout-claim from the live protocol) and the dev pack (5 gates), with the mapping-completeness suite — 57 tests green, forward+reverse checks, all floors (≥ 3 phases, ≥ 5 gates, ≥ 1 per kind, unique names, pairwise-distinct procedures), kind vocabulary enforced. Typecheck clean; smol-toml was already a devDep (no churn).

Gates as data is what the campaign layer consumes (telaio#20's mapping) and what #502's dual-harness suite polices. Part of #497.

Summary by CodeRabbit

• New Features

  • Added development and research workflow gate packs with defined phases, responsibilities, approval gates, and completion artifacts.
  • Added handoff guidance for development hypothesis seeds and research issue seeds.

• Tests

  • Added comprehensive validation covering gate-pack structure, required content, workflow mappings, roles, procedures, and handoff behavior.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: a736d85a-5697-445b-8dbd-c6140b25134d

📥 Commits

Reviewing files that changed from the base of the PR and between e217adc and 74b2436.

📒 Files selected for processing (3)

• packages/extension/gate-packs/dev.toml
• packages/extension/gate-packs/research.toml
• packages/extension/test/gate_packs.test.ts

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📝 Walkthrough

Walkthrough

Added schema'd TOML contracts for research and development gate packs. Added Vitest specifications that validate fixture structure, mapping completeness, non-triviality, distinct procedures, protocol content, closing artifacts, and handoffs.

Changes

Gate-pack contracts

Layer / File(s)	Summary
Define research and development gate packs packages/extension/gate-packs/research.toml, packages/extension/gate-packs/dev.toml	The research pack defines five protocol phases and its gates, roles, artifact, and autodev handoff. The development pack defines three workflow phases and its gates, implementer role, landed-delta artifact, and autoresearch handoff.
Validate schema and mappings packages/extension/test/gate_packs.test.ts	The test suite validates fixture loading, approved vocabularies, required fields, phase-gate mappings, role bindings, handoff targets, minimum counts, unique gate names, and distinct procedures.
Verify protocol-specific pack content packages/extension/test/gate_packs.test.ts	The tests verify the required research and development phases, gate procedures, role assignments, closing artifacts, and handoff semantics.

Estimated code review effort: 3 (Moderate) | ~25 minutes

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch 498-gate-pack-fixtures

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