Add hacs and hassfest validation steps

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Smartphone (please complete the following information):**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - Browser [e.g. stock browser, safari]
+ - Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/dependabot.yml

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+# https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    ignore:
+      # Dependabot should not update Home Assistant as that should match the homeassistant key in hacs.json
+      - dependency-name: "homeassistant"

.github/workflows/validate.yml

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+name: "Validate"
+
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron:  "0 0 * * 0"
+  workflow_dispatch:
+
+jobs:
+  hassfest: # https://developers.home-assistant.io/blog/2020/04/16/hassfest
+    name: "Hassfest Validation"
+    runs-on: "ubuntu-latest"
+    steps:
+        - name: "Checkout the repository"
+          uses: "actions/checkout@v4.1.7"
+
+        - name: "Run hassfest validation"
+          uses: "home-assistant/actions/hassfest@master"
+
+  hacs: # https://github.com/hacs/action
+    name: "HACS Validation"
+    runs-on: "ubuntu-latest"
+    steps:
+        - name: "Checkout the repository"
+          uses: "actions/checkout@v4.1.7"
+
+        - name: "Run HACS validation"
+          uses: "hacs/action@main"
+          with:
+            category: "integration"