chore: validate fw.json syntax and target order (#6533)

.github/workflows/actions.yml

@@ -14,6 +14,7 @@ on:
       - '.github/workflows/macosx_cpn.yml'
       - '.github/workflows/win-cpn-32.yml'
       - '.github/workflows/win_cpn-64.yml'
+      - '.github/workflows/validate_json.yml'
       - 'companion/**'
       - '.gitpod.yml'
       - '.devcontainer/**'
@@ -29,6 +30,7 @@ on:
       - '.github/workflows/macosx_cpn.yml'
       - '.github/workflows/win-cpn-32.yml'
       - '.github/workflows/win_cpn-64.yml'
+      - '.github/workflows/validate_fw_json.yml'
       - 'companion/**'
       - '.gitpod.yml'
       - '.devcontainer/**'

.github/workflows/validate_fw_json.yml

@@ -0,0 +1,23 @@
+---
+name: Validate fw.json
+on:
+  push:
+    paths:
+      - 'fw.json'
+  pull_request:
+    paths:
+      - 'fw.json'
+  workflow_dispatch:
+
+jobs:
+  json-validate:
+    name: Validate fw.json file
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Validate fw.json syntax and schema
+        run: python3 tools/validate-json.py --syntax-only
+
+      - name: Validate fw.json alphabetical order
+        run: python3 tools/validate-json.py --order-only