Living documentation pipeline with auto-refresh and drift detection

[arnaudlh]

Description

The manifesto lists "living documentation" as a capability modules could never provide. Git-ape generates architecture diagrams but does not maintain them as living artifacts that auto-update with infrastructure changes.

Scope

1. Auto-regeneration — After any deployment change, re-run the resource visualizer and update architecture.md.
2. Dependency graph — Generate dependency graphs showing relationships between deployments.
3. Documentation drift — Detect when architecture.md diverges from actual deployed state.
4. Changelog — Auto-generate a changelog from deployment history (state.json changes).

Acceptance Criteria

• Architecture diagrams auto-update on infrastructure changes.
• Dependency graphs show cross-deployment relationships.
• Documentation drift is detected and flagged.