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-libs/src/axum/mod.rs

@@ -4,6 +4,7 @@
 //! with PostgreSQL database connections and comprehensive error handling.
 
 pub mod validated_json;
+pub mod zod_validate;
 
 use axum::{Router, serve};
 use std::{future::Future, net::SocketAddr};
@@ -14,6 +15,7 @@ use sea_orm::DbErr;
 use std::sync::Arc;
 
 pub use validated_json::ValidatedJson;
+pub use zod_validate::ZodValidate;
 
 /// PostgreSQL database clients for different connection types
 pub struct PostgresClients {