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-cms/src/qr/campaigns/infrastructure/http/routes.rs

@@ -0,0 +1,41 @@
+use axum::{
+	Extension, Router,
+	middleware::from_fn,
+	routing::{delete, post, put},
+};
+use sqlx::PgPool;
+use std::sync::Arc;
+
+use crate::qr::{
+	campaigns::{
+		application::campaign_service::QrCampaignServiceImpl,
+		domain::{repository::CampaignRepository, service::QrCampaignService},
+		infrastructure::{
+			http::handlers::{
+				activate_campaign_handler, create_campaign_handler, delete_campaign_handler,
+				list_campaigns_handler, process_image_handler,
+			},
+			persistence::postgres_campaign_repository::PostgresCampaignRepository,
+		},
+	},
+	middleware::qr_auth::qr_auth_middleware,
+};
+
+pub fn qr_campaigns_routes(pool: Arc<PgPool>) -> Router {
+	let repo: Arc<dyn CampaignRepository> =
+		Arc::new(PostgresCampaignRepository::new(pool.clone()));
+	let service: Arc<dyn QrCampaignService> =
+		Arc::new(QrCampaignServiceImpl::new(repo));
+
+	Router::new()
+		.route(
+			"/campaigns",
+			post(create_campaign_handler).get(list_campaigns_handler),
+		)
+		.route("/campaigns/:id/activate", put(activate_campaign_handler))
+		.route("/campaigns/:id", delete(delete_campaign_handler))
+		.route("/campaigns/process-image", post(process_image_handler))
+		.layer(Extension(service))
+		.layer(Extension(pool))
+		.layer(from_fn(qr_auth_middleware))
+}