feat: Add Auth Service with JWT authentication

services/auth-service/models.py

@@ -0,0 +1,86 @@
+"""
+Auth Service Data Models
+"""
+from pydantic import BaseModel, EmailStr, Field
+from typing import Optional, List
+from datetime import datetime
+from uuid import UUID
+
+
+# Request Models
+class RegisterRequest(BaseModel):
+    email: EmailStr
+    password: str = Field(..., min_length=8, max_length=128)
+    display_name: Optional[str] = Field(None, max_length=100)
+
+
+class LoginRequest(BaseModel):
+    email: EmailStr
+    password: str
+
+
+class RefreshRequest(BaseModel):
+    refresh_token: str
+
+
+class LogoutRequest(BaseModel):
+    refresh_token: str
+
+
+class IntrospectRequest(BaseModel):
+    token: str
+
+
+# Response Models
+class UserResponse(BaseModel):
+    id: UUID
+    email: str
+    display_name: Optional[str] = None
+    avatar_url: Optional[str] = None
+    roles: List[str] = []
+    is_active: bool = True
+    created_at: datetime
+
+
+class RegisterResponse(BaseModel):
+    user_id: UUID
+    email: str
+    display_name: Optional[str] = None
+    roles: List[str] = ["user"]
+
+
+class TokenResponse(BaseModel):
+    access_token: str
+    refresh_token: str
+    token_type: str = "Bearer"
+    expires_in: int
+    user: UserResponse
+
+
+class RefreshResponse(BaseModel):
+    access_token: str
+    refresh_token: str
+    token_type: str = "Bearer"
+    expires_in: int
+
+
+class IntrospectResponse(BaseModel):
+    active: bool
+    sub: Optional[str] = None
+    email: Optional[str] = None
+    roles: Optional[List[str]] = None
+    exp: Optional[int] = None
+
+
+class StatusResponse(BaseModel):
+    status: str
+
+
+class HealthResponse(BaseModel):
+    status: str
+    service: str
+    version: str
+
+
+class ErrorResponse(BaseModel):
+    detail: str