feat(testing): MUSTER — repo conformance checker module

[kristopherjturner]

MUSTER — Repo conformance checker

Classification (ADR-0004)

Axis	Value
Scope	compliance
Target	repo · org
Authority	canonical
Lifecycle	drift-audit

Summary

Engine behind the monthly drift-audit.yml workflow. Asserts repos conform to platform standards: required files present, CI wired, STANDARDS.md stub in place, CODEOWNERS synced, .azurelocal-platform.yml parseable.

Current state

Implemented inside AzureLocal.Common (Test-RepoConformance, Get-AzureLocalRepoInventory). Needs to be extracted as a standalone AzureLocal.Muster module when its surface stabilises.

Acceptance criteria

• AzureLocal.Muster module extracted from AzureLocal.Common
• Published to PSGallery
• drift-audit.yml updated to call AzureLocal.Muster directly
• Module docs added under docs/

Target: v0.3.0+