feat(api): Pydantic schemas + Data Repositories

app/schemas/auth.py

@@ -0,0 +1,42 @@
+"""Authentication schemas."""
+
+from uuid import UUID
+
+from pydantic import BaseModel, EmailStr, Field
+
+
+class RegisterRequest(BaseModel):
+    """Request body for user registration."""
+
+    email: EmailStr
+    password: str = Field(min_length=8, max_length=128)
+    org_name: str = Field(min_length=1, max_length=100, description="Name for the default org")
+
+
+class LoginRequest(BaseModel):
+    """Request body for user login."""
+
+    email: EmailStr
+    password: str
+
+
+class RefreshRequest(BaseModel):
+    """Request body for token refresh."""
+
+    refresh_token: str
+
+
+class SwitchOrgRequest(BaseModel):
+    """Request body for switching active organization."""
+
+    org_id: UUID
+    refresh_token: str
+
+
+class TokenResponse(BaseModel):
+    """Response containing access and refresh tokens."""
+
+    access_token: str
+    refresh_token: str
+    token_type: str = "bearer"
+    expires_in: int = Field(description="Access token expiry in seconds")