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-entities/src/common_dto.rs

@@ -7,31 +7,6 @@ pub struct MessageResponseDto {
 	pub version: String,
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize, ToSchema, IntoParams)]
-pub struct MetaRequestDto {
-	pub page: Option<u64>,
-	pub per_page: Option<u64>,
-	pub search: Option<String>,
-	pub sort_by: Option<String>,
-	pub order: Option<String>,
-	pub filter: Option<String>,
-	pub filter_by: Option<String>,
-}
-
-impl Default for MetaRequestDto {
-	fn default() -> Self {
-		MetaRequestDto {
-			page: Some(1),
-			per_page: Some(10),
-			search: None,
-			sort_by: None,
-			order: None,
-			filter: None,
-			filter_by: None,
-		}
-	}
-}
-
 #[derive(Debug, Clone, Serialize, Deserialize, ToSchema, IntoParams)]
 pub struct MetaResponseDto {
 	pub page: Option<u64>,
@@ -58,7 +33,3 @@ pub struct ErrorDto {
     pub details: Option<serde_json::Value>,
 }
 
-#[derive(Debug, serde::Deserialize)]
-pub struct CountResult {
-	pub count: u64,
-}