Replace the cramped Synapse deployment with tuwunel v1.7.1: embedded RocksDB
drops the CNPG dependency (both init-containers, the db ESO, the Reloader
annotation all gone), env-var config, fsGroup-owned encrypted PVC, federation
on, tuwunel-served well-known delegation to :443. server_name unchanged
(matrix.viktorbarzin.me); fresh start (no Synapse->RocksDB migration path).
Registered @viktor admin then disabled registration (403).
Cleanup: removed the orphaned pg-matrix Vault static role and dropped the
matrix Postgres DB/role; updated service-catalog, upgrade-config, CLAUDE.md
PG-rotation list, and the Matrix OIDC->orphaned auth notes. Design+plan in
docs/plans/2026-06-08-matrix-synapse-to-tuwunel-*.
Already applied via scripts/tg (matrix tier-1 + targeted vault tier-0), so
[ci skip] to avoid CI reconciling an unrelated pre-existing vault OIDC
tune-TTL drift.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>