0.3.6 — plugin registry, Unreal extracted to a plugin, in-app update check + fixes

- Official plugin registry hosted on Gitea; client fetches registry.json over
  HTTPS and installs plugins via backend plugin_write_file.
- Auto-install autoInstall plugins on first connect; per-machine enabled state.
- Extract all Unreal tooling (Build Solution / Unreal Log) into a separate
  "unreal" plugin (defaultEnabled) driven through the new host.ue bridge;
  core UI no longer hard-wires Unreal.
- Settings → Plugins: "Official plugins" section with Install buttons.
- Status bar: "Updates" button (right of Log) triggers an update check without
  restarting the client.
- Fixes: NEW badge hard-right/centered without shifting text; History commit
  size no longer flickers (cached per change); giant icons in empty plugin/
  People lists; Get Latest hover contrast.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/p4.ts

@@ -112,6 +112,7 @@ export const p4 = {
   pluginList: () => invoke<PluginInfo[]>("plugin_list"),
   pluginReadEntry: (id: string) => invoke<string>("plugin_read_entry", { id }),
   pluginSetEnabled: (id: string, enabled: boolean) => invoke<void>("plugin_set_enabled", { id, enabled }),
+  pluginWriteFile: (id: string, name: string, content: string) => invoke<void>("plugin_write_file", { id, name, content }),
   pluginInstall: (src: string) => invoke<string>("plugin_install", { src }),
   pluginRemove: (id: string) => invoke<void>("plugin_remove", { id }),
   pluginsDirPath: () => invoke<string>("plugins_dir_path"),