feat(billing): plan taxonomy reconciliation + Stripe sync + internal-tester allowlist (#164)

Co-authored-by: Michael Chihlas <michael@resolutionflow.com>
Co-committed-by: Michael Chihlas <michael@resolutionflow.com>

backend/app/models/subscription.py

@@ -37,12 +37,12 @@ class Subscription(Base):
     @property
     def is_paid(self) -> bool:
         # Excludes complimentary and trialing so MRR/paid-customer metrics aren't inflated.
-        return self.plan in ("pro", "team") and self.status not in ("complimentary", "trialing")
+        return self.plan in ("pro", "starter", "enterprise") and self.status not in ("complimentary", "trialing")
 
     @property
     def has_pro_entitlement(self) -> bool:
         """True if the account can access Pro features right now."""
-        if self.plan in ("pro", "team"):
+        if self.plan in ("pro", "starter", "enterprise"):
             if self.status in ("active", "complimentary"):
                 return True
         if self.status == "trialing" and self.current_period_end is not None: