merge: PR #459 update password minimum policy

Author: devanshi14malhotra

backend/validators.py

@@ -185,7 +185,7 @@ class RegisterRequest(BaseModel):
     """Request schema for POST /api/v1/register endpoint."""
     username: str = Field(..., min_length=3, max_length=50, description="Username (3-50 characters)")
     email: EmailStr = Field(..., description="Valid email address")
-    password: str = Field(..., min_length=6, max_length=100, description="Password (minimum 6 characters)")
+    password: str = Field(..., min_length=8, max_length=100, description="Password (minimum 8 characters)")
 
     @field_validator('username')
     @classmethod
@@ -196,7 +196,6 @@ def username_alphanumeric(cls, v: str) -> str:
             raise ValueError('Username must contain only letters, numbers, and underscores.')
         return v
 
-
 class LoginRequest(BaseModel):
     """Request schema for POST /api/v1/login endpoint."""
     username: str = Field(..., min_length=1, description="Username or email")

scratch/test_username.py

@@ -13,7 +13,7 @@
 
 def test_username(username):
     print(f"Testing username: '{username}'")
-    data = {"username": username, "email": "test@example.com", "password": "password123"}
+    data = {"username": username, "email": "test@example.com", "password": "Password123!"}
     is_valid, result = validate_request(RegisterRequest, data)
     if is_valid:
         print(f"[VALID] {result.username}")

tests/test_validation.py

@@ -134,7 +134,7 @@ def main():
     test_validator(
         RegisterRequest,
         "RegisterRequest",
-        {"username": "testuser", "email": "test@example.com", "password": "password123"},
+        {"username": "testuser", "email": "test@example.com", "password": "Password123!"},
         {"username": "ab", "email": "invalid-email", "password": "123"}
     )