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-hackathon/src/chat/infrastructure/http/handlers.rs

@@ -1,36 +1,42 @@
+use super::dto::*;
+use crate::chat::domain::service::ChatService;
+use crate::middleware::hackathon_auth::HackathonAuthUser;
 use axum::{Extension, Json, extract::Path, response::IntoResponse};
+use imphnen_utils::{
+	errors::AppError,
+	response_format::{ApiMessage, ApiSuccess},
+};
 use std::sync::Arc;
 use uuid::Uuid;
-use imphnen_utils::{errors::AppError, response_format::{ApiSuccess, ApiMessage}};
-use crate::middleware::hackathon_auth::HackathonAuthUser;
-use crate::chat::domain::service::ChatService;
-use super::dto::*;
 
 pub async fn get_team_messages_handler(
-    Extension(service): Extension<Arc<dyn ChatService>>,
-    Extension(auth): Extension<HackathonAuthUser>,
-    Path(team_id): Path<Uuid>,
+	Extension(service): Extension<Arc<dyn ChatService>>,
+	Extension(auth): Extension<HackathonAuthUser>,
+	Path(team_id): Path<Uuid>,
 ) -> Result<axum::response::Response, AppError> {
-    let messages = service.get_team_messages(team_id, auth.user_id).await?;
-    let response: Vec<MessageResponse> = messages.into_iter().map(MessageResponse::from).collect();
-    Ok(ApiSuccess(response).into_response())
+	let messages = service.get_team_messages(team_id, auth.user_id).await?;
+	let response: Vec<MessageResponse> =
+		messages.into_iter().map(MessageResponse::from).collect();
+	Ok(ApiSuccess(response).into_response())
 }
 
 pub async fn send_message_handler(
-    Extension(service): Extension<Arc<dyn ChatService>>,
-    Extension(auth): Extension<HackathonAuthUser>,
-    Path(team_id): Path<Uuid>,
-    Json(body): Json<SendMessageRequest>,
+	Extension(service): Extension<Arc<dyn ChatService>>,
+	Extension(auth): Extension<HackathonAuthUser>,
+	Path(team_id): Path<Uuid>,
+	Json(body): Json<SendMessageRequest>,
 ) -> Result<axum::response::Response, AppError> {
-    let message = service.send_message(team_id, auth.user_id, body.into()).await?;
-    Ok(ApiSuccess(MessageResponse::from(message)).into_response())
+	let message = service
+		.send_message(team_id, auth.user_id, body.into())
+		.await?;
+	Ok(ApiSuccess(MessageResponse::from(message)).into_response())
 }
 
 pub async fn delete_message_handler(
-    Extension(service): Extension<Arc<dyn ChatService>>,
-    Extension(auth): Extension<HackathonAuthUser>,
-    Path(message_id): Path<Uuid>,
+	Extension(service): Extension<Arc<dyn ChatService>>,
+	Extension(auth): Extension<HackathonAuthUser>,
+	Path(message_id): Path<Uuid>,
 ) -> Result<axum::response::Response, AppError> {
-    service.delete_message(message_id, auth.user_id).await?;
-    Ok(ApiMessage::ok("Message deleted").into_response())
+	service.delete_message(message_id, auth.user_id).await?;
+	Ok(ApiMessage::ok("Message deleted").into_response())
 }