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-entities/src/seaorm/common/audit_log.rs

@@ -1,25 +1,23 @@
-//! SeaORM Entity for AuditLog
-
 use sea_orm::entity::prelude::*;
 use serde::{Deserialize, Serialize};
 
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, DeriveEntityModel)]
 #[sea_orm(table_name = "app_audit_log")]
 pub struct Model {
-    #[sea_orm(primary_key, default = "gen_random_uuid()", auto_increment = false)]
-    pub id: Uuid,
-    pub user_id: Uuid,
-    pub user_email: String,
-    pub action: String,
-    pub resource: String,
-    pub resource_id: Option<String>,
-    #[sea_orm(column_type = "JsonBinary", nullable)]
-    pub old_data: Option<Json>,
-    #[sea_orm(column_type = "JsonBinary", nullable)]
-    pub new_data: Option<Json>,
-    pub ip_address: String,
-    pub user_agent: Option<String>,
-    pub timestamp: DateTimeWithTimeZone,
+	#[sea_orm(primary_key, default = "gen_random_uuid()", auto_increment = false)]
+	pub id: Uuid,
+	pub user_id: Uuid,
+	pub user_email: String,
+	pub action: String,
+	pub resource: String,
+	pub resource_id: Option<String>,
+	#[sea_orm(column_type = "JsonBinary", nullable)]
+	pub old_data: Option<Json>,
+	#[sea_orm(column_type = "JsonBinary", nullable)]
+	pub new_data: Option<Json>,
+	pub ip_address: String,
+	pub user_agent: Option<String>,
+	pub timestamp: DateTimeWithTimeZone,
 }
 
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]