fix: enable semantic rectification rollout

deploy/README.md

@@ -406,11 +406,14 @@ previous-revision smoke SHA must remain pending. If the create flag, migration
 flag, deployment SHA, or strict UUID allowlist is invalid, creation audience
 must be `paused`, including for the smoke account.
 
-After the smoke sequence below passes, set
+After the smoke sequence below passes, use the guarded rollout workflow to set
 `RECTIFICATION_V3_SYNTHETIC_SMOKE_SHA` to the exact deployed 40-character
-lowercase Git SHA, remove `RECTIFICATION_V3_SYNTHETIC_SMOKE_USER_IDS`, and
-restart the web container. Then fetch health again and
-verify all of the following against the revision that passed validation:
+lowercase Git SHA, remove `RECTIFICATION_V3_SYNTHETIC_SMOKE_USER_IDS`, enable
+`RECTIFICATION_AGENT_V5_ENABLED=true`, disable shadow mode, set the canary to
+100 percent, and restart both the web and rectification worker containers. The
+workflow writes these selectors together so public Case creation cannot silently
+fall back to the fixed `v4_legacy` projector. Then fetch health again and verify
+all of the following against the revision that passed validation:
 
 - `deployment.gitCommit` exactly equals the tested 40-character Git SHA;
 - `rollout.conversationalRectificationV3.protocol` is

deploy/configure-staging-rectification-rollout.sh

@@ -102,12 +102,16 @@ awk \
   -v create="$creation_enabled" \
   -v migrations="true" \
   -v smoke_sha="$smoke_sha" \
-  -v smoke_users="$smoke_user_ids" '
+  -v smoke_users="$smoke_user_ids" \
+  -v agent_enabled="$creation_enabled" '
 BEGIN {
   values["RECTIFICATION_V3_CREATE_ENABLED"] = create
   values["RECTIFICATION_V3_MIGRATIONS_READY"] = migrations
   values["RECTIFICATION_V3_SYNTHETIC_SMOKE_SHA"] = smoke_sha
   values["RECTIFICATION_V3_SYNTHETIC_SMOKE_USER_IDS"] = smoke_users
+  values["RECTIFICATION_AGENT_V5_ENABLED"] = agent_enabled
+  values["RECTIFICATION_AGENT_V5_SHADOW"] = "false"
+  values["RECTIFICATION_AGENT_V5_CANARY_PERCENT"] = "100"
 }
 {
   split($0, parts, "=")