feat: add disabledReason field to projects for better tracking of disable reasons

packages/db/prisma/schema.prisma

@@ -43,7 +43,8 @@ model Project {
   secret String @unique
 
   // Admin
-  disabled Boolean @default(false)
+  disabled       Boolean                @default(false)
+  disabledReason ProjectDisabledReason?
 
   // Billing
   customer     String? @unique
@@ -632,6 +633,13 @@ model Event {
 // ENUMS
 // ============================================
 
+enum ProjectDisabledReason {
+  PAYMENT_FAILED // Subscription renewal payment failed
+  EMAIL_REPUTATION // Bounce or complaint rate thresholds exceeded
+  PHISHING_DETECTED // Phishing content detected by LLM scan
+  MANUAL // Disabled by support/admin (e.g. directly in DB)
+}
+
 enum AuthMethod {
   PASSWORD
   GOOGLE_OAUTH