Add dev plugin list (pluginmaster-dev.json) for testing before live release

Co-authored-by: Cursor <cursoragent@cursor.com>

README.md

@@ -1,8 +1,40 @@
 # Dalamud plugin list
 
-This repo holds the single `pluginmaster.json` that lists plugins for Dalamud.  
-Users add this URL as a custom plugin repository in XIVLauncher/Dalamud:
+This repo holds the plugin lists for Dalamud.
 
+## URLs for Dalamud / XIVLauncher
+
+Add **one** of these as a custom plugin repository:
+
+### Live (stable) – for everyone
 ```
 http://brassnet.ddns.net:33983/KnackAtNite/dalamud-plugin-list/raw/branch/main/pluginmaster.json
 ```
+
+### Dev (testing) – for you and testers
+```
+http://brassnet.ddns.net:33983/KnackAtNite/dalamud-plugin-list/raw/branch/main/pluginmaster-dev.json
+```
+
+- **Live** (`pluginmaster.json`): Stable releases. Update when you promote a build for everyone.
+- **Dev** (`pluginmaster-dev.json`): Dev/test builds. Update when you publish a pre-release for testing.
+
+## Publishing a dev build (e.g. HSUI)
+
+1. Bump the plugin version (e.g. `1.0.8.4` → `1.0.8.5`).
+2. Build Release, run the plugin’s create-release script (e.g. `HSUI/create-release.ps1`).
+3. Create a Gitea release with a `-dev` tag (e.g. `v1.0.8.5-dev`) and upload the zip.
+4. Update `pluginmaster-dev.json`:
+   - Set `AssemblyVersion` to the new version (e.g. `1.0.8.5`).
+   - Set `DownloadLinkInstall`, `DownloadLinkUpdate`, and `DownloadLinkTesting` to the dev release URL (e.g. `.../releases/download/v1.0.8.5-dev/latest.zip`).
+   - Update `LastUpdate` (Unix timestamp).
+5. Commit and push `pluginmaster-dev.json` to Gitea.
+
+Testers add the **dev** URL above and refresh their plugin list to see the new build.
+
+## Promoting a dev build to live
+
+1. Create a Gitea release with the stable tag (e.g. `v1.0.8.5`) and upload the same zip.
+2. Update `pluginmaster.json` with the new version, download URLs, and changelog.
+3. Commit and push.
+4. Optionally remove the `-dev` release from Gitea once live is published.