Freeze HA scoring and document reported production failover

HANDOFF.md

@@ -1,3 +1,7 @@
+> Historical refactor brief. Current production operating policy and validation
+> are documented in [docs/operations.md](docs/operations.md) and
+> [docs/testing.md](docs/testing.md).
+
 # PostgreSQL HA OCF Resource Agent — Codex Refactor Handoff
 
 ## Objective
@@ -30,7 +34,9 @@ Control path:
       -> persistent PostgreSQL maintenance container
       -> PostgreSQL
 
-The maintenance container PID 1 is intentionally `sleep infinity`.
+The container entrypoint runs the bootstrap wrapper, which executes
+`sleep infinity` after its bootstrap gate. Podman may place its init shim at
+PID 1; PostgreSQL is not the container lifetime process.
 
 PostgreSQL itself is independently started/stopped with `pg_ctl`.