refactor: migrate to clean architecture with trait-based DI (v0.2.0)

Complete architectural overhaul across all 12 crates:

- Replace validator crate with zod-rs for all DTO validation
- Replace manual pagination with paginator-rs/paginator-sea-orm
- Migrate all modules (iam, cms, gacha, dimentorin) to clean architecture:
  domain → application → infrastructure layers
- Introduce trait-based DI (Arc<dyn Trait>) at every layer for repositories and services
- Delete all v1/ legacy SurrealDB-era code across every crate
- Replace opaque response helpers with typed IntoResponse structs (ApiSuccess, ApiCreated, ApiPaginated, ApiMessage)
- Remove dual_mode_repository, migration_validation_errors, validator.rs dead code
- Zero cargo clippy warnings; release build clean

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

imphnen-dimentorin/src/mentors/domain/service.rs

@@ -0,0 +1,55 @@
+use async_trait::async_trait;
+use paginator_rs::PaginationParams;
+use paginator_utils::PaginatorResponse;
+use uuid::Uuid;
+use imphnen_utils::AppError;
+use super::mentor::MentorEntity;
+use crate::mentors::infrastructure::http::dto::{
+    MentorDetailResponseDto, MentorListResponseDto, MentorRegisterResponseDto,
+    MentorUpdateRequestDto, MentorUserRegisterRequestDto, MentorVerifyRequestDto,
+};
+
+#[async_trait]
+pub trait MentorService: Send + Sync {
+    async fn list(
+        &self,
+        params: PaginationParams,
+    ) -> Result<PaginatorResponse<MentorListResponseDto>, AppError>;
+
+    async fn get_by_id(&self, id: Uuid) -> Result<MentorDetailResponseDto, AppError>;
+
+    async fn get_by_email(&self, email: &str) -> Result<MentorDetailResponseDto, AppError>;
+
+    async fn register(
+        &self,
+        dto: MentorUserRegisterRequestDto,
+    ) -> Result<MentorRegisterResponseDto, AppError>;
+
+    async fn update(
+        &self,
+        id: Uuid,
+        dto: MentorUpdateRequestDto,
+    ) -> Result<MentorDetailResponseDto, AppError>;
+
+    async fn update_me(
+        &self,
+        email: &str,
+        dto: MentorUpdateRequestDto,
+    ) -> Result<MentorDetailResponseDto, AppError>;
+
+    async fn delete(&self, id: Uuid) -> Result<(), AppError>;
+
+    async fn verify(
+        &self,
+        id: Uuid,
+        dto: MentorVerifyRequestDto,
+    ) -> Result<MentorDetailResponseDto, AppError>;
+
+    async fn get_status(&self, email: &str) -> Result<String, AppError>;
+
+    async fn get_entity_by_id(
+        &self,
+        id: Uuid,
+        include_deleted: bool,
+    ) -> Result<MentorEntity, AppError>;
+}