Add comprehensive tests for mentor repository and authentication

- Implemented tests for creating, retrieving, updating, and deleting mentors in `mentor_repository_test.rs`.
- Added tests for user authentication, including successful login, invalid email formats, and inactive users in `auth_login_tests.rs`.
- Created a mock test environment setup in `mock_test.rs` to facilitate database operations during tests.
- Updated module structure to include new test files for mentors and authentication.
- Ensured cleanup of the database after tests to maintain isolation and prevent side effects.

imphnen-iam/src/v1/auth/auth_dto.rs

@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 use utoipa::ToSchema;
 use validator::{Validate, ValidationError};
 
-fn validate_password_complexity(password: &str) -> Result<(), ValidationError> {
+pub fn validate_password_complexity(password: &str) -> Result<(), ValidationError> {
 	let has_uppercase = password.chars().any(|c| c.is_ascii_uppercase());
 	let has_lowercase = password.chars().any(|c| c.is_ascii_lowercase());
 	let has_digit = password.chars().any(|c| c.is_ascii_digit());
@@ -117,3 +117,8 @@ pub struct AuthSetNewPasswordRequestDto {
 	))]
 	pub password: String,
 }
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct UserCacheSchema {
+	pub email: String,
+	pub permissions: Vec<String>,
+}