fix(dimentorin): register mentor flow - zod regex attr, uuid id override in user & mentor repos

- Remove broken zod_rs regex() attribute (always fails, blocks password validation)
- user repo create: honor entity.id instead of silently generating new v4 (broke FK mentor.user_id)
- mentor repo create: set id explicitly (was NULL not-null violation)

imphnen-dimentorin/src/mentors/infrastructure/http/dto/request.rs

@@ -13,7 +13,7 @@ use zod_rs::prelude::*;
 pub struct MentorUserRegisterRequestDto {
 	#[zod(email, min_length(1))]
 	pub email: String,
-	#[zod(min_length(8), regex(pattern = "^[A-Za-z\\d@$!%*?&]{8,}$"))]
+	#[zod(min_length(8))]
 	pub password: String,
 	#[zod(min_length(2))]
 	pub fullname: String,

imphnen-dimentorin/src/mentors/infrastructure/persistence/postgres_mentor_repository.rs

@@ -105,6 +105,7 @@ impl MentorRepository for PostgresMentorRepository {
 
 	async fn create(&self, entity: MentorEntity) -> Result<Uuid, AppError> {
 		let active_model = MentorActiveModel {
+			id: ActiveValue::Set(Uuid::new_v4()),
 			user_id: ActiveValue::Set(entity.user_id),
 			industries: ActiveValue::Set(Some(
 				serde_json::to_value(&entity.industries)