refactor: rewrite yourls_dev to match template conventions

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

yourls_dev/README.md

@@ -0,0 +1,67 @@
+# YOURLS
+
+## Overview
+
+YOURLS (Your Own URL Shortener) is a self-hosted URL shortener with
+link statistics, a bookmarklet, and a plugin API. This stack runs
+YOURLS with a MariaDB database.
+
+## Project Details
+
+-   **Project Repository:** [github.com/YOURLS/YOURLS](https://github.com/YOURLS/YOURLS)
+-   **Container Image:** [Docker Hub](https://hub.docker.com/_/yourls)
+-   **Documentation:** [yourls.org](https://yourls.org/)
+-   **Reverse Proxy Port:** `80`
+
+## Getting Started
+
+1. Copy `sample.env` and set `YOURLS_SITE`, the admin login, and the
+   database passwords
+2. Start the containers: `docker compose up -d`
+3. Open http://localhost:8080/admin/ in your browser and run the
+   install step, then sign in with `YOURLS_USER` / `YOURLS_PASS`
+
+## Environment Variable Notes
+
+    YOURLS_SITE – public base URL used in generated short links; must
+      match how users reach the site (domain behind the proxy)
+    YOURLS_USER / YOURLS_PASS – admin login for the /admin/ interface
+    YOURLS_DB_NAME / YOURLS_DB_USER / YOURLS_DB_PASSWORD – database
+      name and credentials, shared by both services
+    YOURLS_MYSQL_ROOT_PASSWORD – MariaDB root password
+    YOURLS_PORT – host port for the web UI (default 8080)
+
+## Volume Notes
+
+-   `/var/www/html` — YOURLS application files and plugins; stored at
+    `${VOL_PATH:-/data}/yourls/html` on the host
+-   `/var/lib/mysql` — MariaDB data; stored at
+    `${VOL_PATH:-/data}/yourls/db` on the host
+
+## Network Notes
+
+Requires proxy network. The database is only attached to the stack's
+`internal` network.
+
+## Docker Run
+
+Not recommended — YOURLS needs its MariaDB companion. Use the compose
+file.
+
+## Additional Notes / Gotchas
+
+-   This is a `_dev` stack — experimental, not yet production-ready.
+-   The admin interface is at `/admin/`, not the site root.
+-   Changing `YOURLS_SITE` after install does not rewrite existing
+    short links; set it correctly before creating links.
+
+## Dockhand Stack, Deploy from Git
+
+-   Cookbooks Repository
+-   stackname: yourls_dev
+-   Compose file path: yourls_dev/compose.yaml
+-   Additional env file (optional): yourls_dev/sample.env
+
+Then "Load" yourls_dev/sample.env into the Environment variables in dockhand.
+
+Create the Stack