Jun 28 - Implement payment functions (Stripe)

app/tenancy/context.py

@@ -11,6 +11,7 @@ gates.py can read them from g.tenant without a second control-DB round-trip.
 """
 
 from dataclasses import dataclass
+from datetime import datetime
 from typing import Optional
 
 
@@ -36,3 +37,7 @@ class TenantContext:
     allow_scheduled_reports: bool = True
     allow_branding: bool = True
     allow_custom_domain: bool = True
+
+    # MT-8: billing state (None = billing not configured / legacy tenant)
+    subscription_status: Optional[str] = None  # trial|active|past_due|cancelled
+    trial_ends_at: Optional[datetime] = None