修复(08-08-production-deployment-execution): 明确终止迁移回滚窗口依据

deploy/trialrun/production-preflight-remote.sh

@@ -4,6 +4,8 @@
 # runs before deploy.sh is allowed to synchronize or execute migrate deploy.
 set -euo pipefail
 
+TERMINATION_MIGRATION_ID="20260807193000_contract_registry_termination_workspace"
+
 fail() {
   printf '[production-preflight][FAIL] code=%s\n' "$1" >&2
   exit 1
@@ -275,13 +277,19 @@ expected_pending_csv="$(printf '%s' "$EXPECTED_PENDING_MIGRATIONS_CSV" | tr ','
   || fail "PROD_MIGRATION_PENDING_ALLOWLIST_MISMATCH"
 pass "migration_reconciliation pending=${actual_pending_csv:-none}"
 
-terminated_count="$(db_value "SELECT count(*) FROM contract_registry WHERE status = 'terminated';" | tr -d '\r\n')" \
-  || fail "PROD_TERMINATED_COUNT_UNAVAILABLE"
-[[ "$terminated_count" =~ ^[0-9]+$ ]] || fail "PROD_TERMINATED_COUNT_INVALID"
-if [[ "$terminated_count" -eq 0 ]]; then
-  pass "rollbackWindow=OPEN terminatedRows=0"
+[[ -n "${candidate_set[$TERMINATION_MIGRATION_ID]:-}" ]] \
+  || fail "PROD_TERMINATION_MIGRATION_NOT_IN_CANDIDATE"
+if [[ -z "${applied_set[$TERMINATION_MIGRATION_ID]:-}" ]]; then
+  pass "rollbackWindow=OPEN terminatedRows=0 basis=migration_not_applied"
 else
-  pass "rollbackWindow=CLOSED terminatedRows=${terminated_count}"
+  terminated_count="$(db_value "SELECT count(*) FROM contract_registry WHERE status = 'terminated';" | tr -d '\r\n')" \
+    || fail "PROD_TERMINATED_COUNT_UNAVAILABLE"
+  [[ "$terminated_count" =~ ^[0-9]+$ ]] || fail "PROD_TERMINATED_COUNT_INVALID"
+  if [[ "$terminated_count" -eq 0 ]]; then
+    pass "rollbackWindow=OPEN terminatedRows=0 basis=terminated_status_count"
+  else
+    pass "rollbackWindow=CLOSED terminatedRows=${terminated_count} basis=terminated_status_count"
+  fi
 fi
 
 pass "migration_status_and_target_checks_complete"

deploy/trialrun/validate-env-contract.js

@@ -773,6 +773,9 @@ for (const requiredFragment of [
   'PROD_TARGET_BUILD_SHA_INVALID',
   'PROD_TARGET_VITE_BUILD_SHA_INVALID',
   'PROD_TARGET_BUILD_SHA_MISMATCH',
+  'PROD_TERMINATION_MIGRATION_NOT_IN_CANDIDATE',
+  'basis=migration_not_applied',
+  'basis=terminated_status_count',
   'PRISMA_STATUS_BEGIN',
   'FROM "_prisma_migrations"',
   'logged_failure',