Prepare default integration (#15)

* added workflow files for HACS validation
* ready for HACS default

.github/workflows/hassfest.yml

@@ -0,0 +1,14 @@
+name: Validate with hassfest
+
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron:  '0 0 * * *'
+
+jobs:
+  validate:
+    runs-on: "ubuntu-latest"
+    steps:
+        - uses: "actions/checkout@v4"
+        - uses: "home-assistant/actions/hassfest@master"

.github/workflows/validate.yml

@@ -0,0 +1,18 @@
+name: Validate
+
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: "0 0 * * *"
+  workflow_dispatch:
+
+jobs:
+  validate-hacs:
+    runs-on: "ubuntu-latest"
+    steps:
+      - uses: "actions/checkout@v4"
+      - name: HACS validation
+        uses: "hacs/action@main"
+        with:
+          category: "integration"

hacs.json

@@ -1,7 +1,4 @@
 {
   "name": "Public Transport Departures",
-  "hacs": "1.6.0",
-  "domains": ["sensor"],
-  "iot_class": "Cloud Polling",
-  "homeassistant": "0.118.0"
+  "country": "DE"
 }