Adds HACS validation workflow

Sets up a new GitHub Actions workflow to validate the HACS integration.

This workflow triggers on push, pull requests, scheduled cron jobs, and manual workflow dispatches. It uses the "hacs/action@main" action to validate the integration, ensuring it meets the HACS standards for plugins.

Author: FoxXxHater

.github/workflows/validate.yaml

@@ -0,0 +1,19 @@
+name: Validate
+
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: "0 0 * * *"
+  workflow_dispatch:
+
+permissions: {}
+
+jobs:
+  validate-hacs:
+    runs-on: "ubuntu-latest"
+    steps:
+      - name: HACS validation
+        uses: "hacs/action@main"
+        with:
+          category: "plugin"