feat: synapse auth delegated to MAS; 20 users/53 tokens/53 devices migrated
Verified: auth_metadata 200, migrated password authenticates via MAS compat layer, migrated access tokens still valid against Synapse, all bots syncing. Downtime 55s (20:09:17Z-20:10:12Z). Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in: