chore(governance): add governance gates

[chitcommit]

Adds SHA-pinned Governance workflow calling CHITTYFOUNDATION/chittycanon and enables Portfolio Hardening.\n\n- Required for CF Workers Builds portfolios.\n- Enforces CODEOWNERS + hardening gates.\n- Governance SHA: 83a7d1da1cfa5041f18450a6d43ff336068285de

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

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Run ID: aff74097-7ee8-44d4-a65b-34d74bf427bf

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Reviewing files that changed from the base of the PR and between 2b65bdd and 2531674.

📒 Files selected for processing (1)

• .github/workflows/governance.yml

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/governance-bootstrap-83a7d1d-20260417

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Pin governance policy input to immutable ref

This workflow claims governance is SHA-pinned for tamper resistance, but it still passes governance_version: main, which is a mutable branch name. In any run where the called pr-governance.yml uses this input to resolve policy/rules, behavior can change without updating this repo, undermining the stated guarantee that governance rules only change via explicit SHA updates.

Useful? React with 👍 / 👎.

[chitcommit]

Closing — governance branch protection was removed across all 154 chittyOrg repos (2026-04-23). The governance.yml workflow this PR would add is no longer required, and the gate it was meant to satisfy no longer exists. If governance is re-enabled later with a sustainable approval path (e.g., dual-identity review), the workflow can be re-added deliberately alongside the branch protection change.