feat(stability): unify readiness and recovery

.gitea/workflows/rollback.yaml

@@ -188,8 +188,16 @@ jobs:
           WAIT=1
           while [ $RETRY -lt $MAX ]; do
             RETRY=$((RETRY + 1))
+            READY_CODE=$(curl -s -o /dev/null -w "%{http_code}" --max-time 10 https://nexus.noveria.net/health/ready || true)
             HEALTH_BODY=$(curl -sf --max-time 10 https://nexus.noveria.net/health || true)
-            if printf '%s' "$HEALTH_BODY" | grep -Eq '^[[:space:]]*\{[[:space:]]*"status"[[:space:]]*:[[:space:]]*"Healthy"'; then
+            # Releases before v0.2.60 have no readiness endpoint; retain a
+            # visible compatibility fallback for emergency rollback only.
+            if [ "$READY_CODE" = "200" ] || [ "$READY_CODE" = "404" ]; then
+              READY_OK=true
+            else
+              READY_OK=false
+            fi
+            if [ "$READY_OK" = "true" ] && printf '%s' "$HEALTH_BODY" | grep -Eq '^[[:space:]]*\{[[:space:]]*"status"[[:space:]]*:[[:space:]]*"Healthy"'; then
               echo ""
               echo "✅ Health check passed with Healthy runtime and database state (attempt $RETRY/$MAX)"
               exit 0
@@ -227,11 +235,12 @@ jobs:
           }
 
           check_health() {
-            local body
+            local body ready_code
+            ready_code=$(curl -s -o /dev/null -w "%{http_code}" --max-time 10 "${BASE}/health/ready" || true)
             body=$(curl -sf --max-time 10 "${BASE}/health" || true)
             printf "  %-25s" "Health API:"
-            if printf '%s' "$body" | grep -Eq '^[[:space:]]*\{[[:space:]]*"status"[[:space:]]*:[[:space:]]*"Healthy"'; then
-              echo " HTTP 200 Healthy ✅"
+            if { [ "$ready_code" = "200" ] || [ "$ready_code" = "404" ]; } && printf '%s' "$body" | grep -Eq '^[[:space:]]*\{[[:space:]]*"status"[[:space:]]*:[[:space:]]*"Healthy"'; then
+              echo " ready=${ready_code} full=Healthy ✅"
               PASS=$((PASS + 1))
             else
               echo " not healthy ❌"