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>

Cargo.toml

@@ -1,7 +1,6 @@
 [workspace]
 resolver = "2"
 members = [
-  "tests",
   "imphnen-entities",  # Most basic - core data structures
   "imphnen-macros",   # Macros
   "imphnen-libs",      # Depends on entities
@@ -37,7 +36,12 @@ rand = { version = "0.9.2", features = ["std", "alloc"] }
 rand_distr = "0.5.1"
 tower-http = { version = "0.6.6", features = ["cors", "trace"] }
 http-body-util = "0.1.3"
-validator = { version = "0.20.0", features = ["derive"] }
+zod-rs = { version = "0.4", features = ["macros"] }
+zod-rs-util = "0.4"
+paginator-rs = "0.2"
+paginator-utils = "0.2"
+paginator-sea-orm = { version = "0.2", features = ["sqlx-postgres", "runtime-tokio"] }
+paginator-axum = "0.2"
 lazy_static = "1.5.0"
 regex = "1.11.1"
 axum-test = "17.3.0"
@@ -71,7 +75,6 @@ tokio-tungstenite = "0.27"
 url = "2.5"
 futures-util = "0.3"
 http = "1.3"
-tests = { path = "./tests" }
 imphnen-iam = { path = "./imphnen-iam" }
 imphnen-cms = { path = "./imphnen-cms" }
 imphnen-libs = { path = "./imphnen-libs" }