Dual-wiki governance

Intent

Maintain one external representation of observable/customer truth and one internal representation of system behavior, linked by a shared feature index and traceability matrix.

Invariants

• Material user-visible changes update both representations when applicable.
• External content never exposes secrets or sensitive operating procedures.
• Internal specifications include permissions, data classes, failures, tests, and rollout.
• Feature IDs remain stable across route and implementation changes.