fix(minigames): drain legacy slopsmith pending queue + alias SDK (#578)

After the slopsmith→feedBack rename (#537) the minigames SDK publishes
window.feedBackMinigames and only drains window.__feedBackMinigamesPending.
Minigame plugins that still use the pre-rename shim register against
window.slopsmithMinigames and queue to window.__slopsmithMinigamesPending
when the SDK isn't up yet, so their specs are stranded in the legacy queue
and never register. In v3, FeedBarcade renders those games as non-launchable
"Loading…" tiles that do nothing on click (the tile itself comes from the
server registry, so it appears even though the JS spec never registered).

Publish window.slopsmithMinigames as an alias and drain the legacy pending
queue too (register() is keyed on spec.id, so double-queued specs register
once). Also fire the legacy slopsmith-minigames-ready event. Bump the plugin
version so the desktop renderer cache-busts the updated screen.js.

This rescues every not-yet-migrated minigame plugin, including community
ones we don't control.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

plugins/minigames/plugin.json

@@ -1,7 +1,7 @@
 {
   "id": "minigames",
   "name": "Minigames",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "bundled": true,
   "private": false,
   "screen": "screen.html",