Add HACS and Hassfest validation workflow

Author: Feberdin

.github/workflows/validate.yml

@@ -0,0 +1,30 @@
+name: Validate
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  hacs:
+    name: HACS Validation
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Run HACS Validation
+        uses: hacs/action@main
+        with:
+          category: integration
+
+  hassfest:
+    name: Hassfest Validation
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Run Hassfest
+        uses: home-assistant/actions/hassfest@master

custom_components/ecoflow_powerocean/manifest.json

@@ -2,7 +2,7 @@
   "domain": "ecoflow_powerocean",
   "name": "EcoFlow PowerOcean",
   "version": "0.3.6",
-  "codeowners": [],
+  "codeowners": ["@Feberdin"],
   "config_flow": true,
   "documentation": "https://github.com/Feberdin/ecoflow-powerocean-ha",
   "issue_tracker": "https://github.com/Feberdin/ecoflow-powerocean-ha/issues",