feat: initial recipe-importer application

Python/Flask web app that scrapes Hungarian recipe sites (mindmegette.hu)
and imports them into Mealie via its REST API. Includes dark-themed web UI
with editable preview, Dockerfile, build script, and docker-compose.

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

docker-compose.yml

@@ -0,0 +1,14 @@
+services:
+  recipe-importer:
+    image: gitea.dooplex.hu/admin/recipe-importer:0.1.0
+    container_name: recipe-importer
+    restart: unless-stopped
+    ports:
+      - "8011:8000"
+    volumes:
+      - recipe-data:/data
+    environment:
+      - SECRET_KEY=change-me-in-production
+
+volumes:
+  recipe-data: