chore: prepare repo for HACS listing

- Add hacs.json and MIT LICENSE required for HACS/default-store inclusion
- Fill required manifest.json keys (documentation, issue_tracker,
  codeowners) and reorder per hassfest's key-ordering rule
- Add validate.yml workflow running hassfest and HACS validation
- Update README install note now that hacs.json is checked in

.github/workflows/validate.yml

@@ -0,0 +1,40 @@
+name: Validate
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * *"
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+permissions: {}
+
+jobs:
+  hassfest:
+    name: Hassfest validation
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+
+      - name: Run hassfest validation
+        uses: home-assistant/actions/hassfest@master
+
+  hacs:
+    name: HACS validation
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+
+      - name: Run HACS validation
+        uses: hacs/action@main
+        with:
+          category: integration
+          # Remove this 'ignore' key once real brand images are added at
+          # custom_components/localthings/brand/
+          ignore: brands

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Marc Billow
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -60,7 +60,7 @@ This repo doesn't include the needed CA bundle. For an example of how to obtain
 
 ## Part 3: Add the integration in Home Assistant
 
-1. Copy `custom_components/localthings/` into your HA config's `custom_components/` directory. (Or install via a custom HACS repository: no `hacs.json` is checked in yet, so add this repo as a custom integration repository in HACS if you use it that way.)
+1. Copy `custom_components/localthings/` into your HA config's `custom_components/` directory. (Or add this repo as a custom repository in HACS — `Integration` category — and install it from there.)
 2. Restart HA.
 3. **Settings > Devices & Services > Add Integration > Local Things.**
 4. First device: paste the appliance's IP, plus the contents of the CA private and public key from Part 2.

custom_components/localthings/manifest.json

@@ -1,14 +1,16 @@
 {
   "domain": "localthings",
   "name": "Local Things",
-  "version": "0.1.0",
+  "codeowners": ["@mbillow"],
   "config_flow": true,
+  "dependencies": [],
+  "documentation": "https://github.com/mbillow/localthings",
   "iot_class": "local_polling",
+  "issue_tracker": "https://github.com/mbillow/localthings/issues",
   "requirements": [
     "cbor2>=5.4.6",
     "pyOpenSSL>=23.0",
     "smartthings-local>=0.1.0"
   ],
-  "dependencies": [],
-  "codeowners": []
+  "version": "0.1.0"
 }

hacs.json

@@ -0,0 +1,4 @@
+{
+  "name": "Local Things",
+  "homeassistant": "2025.1.0"
+}