feat: v0.3.0 — standardize codebase, centralize infra, merge QR into CMS

- Enforce axum best practices across all 13 workspace crates
  (max 200 LOC/file, no comments, no unwrap, clean architecture)
- Fix domain→infrastructure dependency inversions in imphnen-iam and imphnen-dimentorin
- Extract imphnen-storage (MinIO) and imphnen-email (Lettre) as standalone crates
- Centralize all config in ENV struct: CDN_URL, CORS_ALLOWED_ORIGINS
- Centralize SMTP through imphnen-email; remove dead HackathonConfig
- Centralize database: QR crate now shares main DB pool (single DATABASE_URL)
- Rename QR users table to qr_users to avoid collision with main users table
- Merge imphnen-qr into imphnen-cms/src/qr (13 crates, down from 14)
- Restructure imphnen-hackathon flat modules into clean architecture
- Remove all stale env vars from .env.example (SurrealDB, QR_JWT, Hackathon infra)
- Fix Dockerfile to include all current workspace crates
- Bump all crate versions 0.2.0 → 0.3.0

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

imphnen-iam/src/roles/domain/repository.rs

@@ -1,15 +1,23 @@
+use super::role::RoleEntity;
 use async_trait::async_trait;
+use imphnen_utils::AppError;
 use paginator_rs::PaginationParams;
 use paginator_utils::PaginatorResponse;
-use imphnen_utils::AppError;
-use super::role::RoleEntity;
 
 #[async_trait]
 pub trait RoleRepository: Send + Sync {
-    async fn find_all(&self, params: PaginationParams) -> Result<PaginatorResponse<RoleEntity>, AppError>;
-    async fn find_by_id(&self, id: String) -> Result<RoleEntity, AppError>;
-    async fn find_by_name(&self, name: String) -> Result<RoleEntity, AppError>;
-    async fn create(&self, entity: RoleEntity) -> Result<RoleEntity, AppError>;
-    async fn update(&self, id: String, name: Option<String>, permissions: Option<Vec<String>>) -> Result<String, AppError>;
-    async fn delete(&self, id: String) -> Result<String, AppError>;
+	async fn find_all(
+		&self,
+		params: PaginationParams,
+	) -> Result<PaginatorResponse<RoleEntity>, AppError>;
+	async fn find_by_id(&self, id: String) -> Result<RoleEntity, AppError>;
+	async fn find_by_name(&self, name: String) -> Result<RoleEntity, AppError>;
+	async fn create(&self, entity: RoleEntity) -> Result<RoleEntity, AppError>;
+	async fn update(
+		&self,
+		id: String,
+		name: Option<String>,
+		permissions: Option<Vec<String>>,
+	) -> Result<String, AppError>;
+	async fn delete(&self, id: String) -> Result<String, AppError>;
 }