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/schemas/admin.py

@@ -125,7 +125,7 @@ class AdminAccountDetailResponse(AdminAccountListItem):
 
 class AdminAccountCreate(BaseModel):
     name: str = Field(..., min_length=1, max_length=255)
-    plan: Literal["free", "pro", "team"] = "free"
+    plan: Literal["free", "pro", "starter", "enterprise"] = "free"
     owner_email: Optional[EmailStr] = Field(None, description="Email of an existing user to set as owner")
 
 

backend/app/schemas/billing.py

@@ -4,7 +4,7 @@ from pydantic import BaseModel
 
 
 class CheckoutSessionCreate(BaseModel):
-    plan: Literal["pro", "starter", "team", "enterprise"]
+    plan: Literal["pro", "starter", "enterprise"]
     seats: int
     billing_interval: Literal["monthly", "annual"] = "monthly"
 

backend/app/schemas/invite_code.py

@@ -9,7 +9,7 @@ class InviteCodeCreate(BaseModel):
     expires_at: Optional[datetime] = Field(None, description="Optional expiration time")
     note: Optional[str] = Field(None, max_length=255, description="Note about who this code is for")
     email: Optional[EmailStr] = Field(None, description="Recipient email for invite delivery")
-    assigned_plan: Literal["free", "pro", "team"] = Field("free", description="Plan to assign on registration")
+    assigned_plan: Literal["free", "pro", "starter", "enterprise"] = Field("free", description="Plan to assign on registration")
     trial_duration_days: Optional[int] = Field(None, ge=1, le=90, description="Trial duration in days (1-90)")
 
     @model_validator(mode="after")

backend/app/schemas/subscription.py

@@ -41,7 +41,7 @@ class SubscriptionDetails(BaseModel):
 
 
 class SubscriptionPlanUpdate(BaseModel):
-    plan: str  # free, pro, team
+    plan: str  # free, pro, starter, enterprise
 
     model_config = {"json_schema_extra": {"examples": [{"plan": "pro"}]}}