Add JSON linting (#36192)

Uses https://github.com/eslint/json to lint all JSON and JSONC files in the repo.

.github/workflows/files-changed.yml

@@ -19,6 +19,8 @@ on:
         value: ${{ jobs.detect.outputs.swagger }}
       yaml:
         value: ${{ jobs.detect.outputs.yaml }}
+      json:
+        value: ${{ jobs.detect.outputs.json }}
 
 jobs:
   detect:
@@ -35,6 +37,7 @@ jobs:
       docker: ${{ steps.changes.outputs.docker }}
       swagger: ${{ steps.changes.outputs.swagger }}
       yaml: ${{ steps.changes.outputs.yaml }}
+      json: ${{ steps.changes.outputs.json }}
     steps:
       - uses: actions/checkout@v6
       - uses: dorny/paths-filter@v3
@@ -100,3 +103,6 @@ jobs:
               - "**/*.yaml"
               - ".yamllint.yaml"
               - "pyproject.toml"
+
+            json:
+              - "**/*.json"

.github/workflows/pull-compliance.yml

@@ -63,6 +63,21 @@ jobs:
       - run: make deps-py
       - run: make lint-yaml
 
+  lint-json:
+    if: needs.files-changed.outputs.json == 'true'
+    needs: files-changed
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - uses: actions/checkout@v6
+      - uses: pnpm/action-setup@v4
+      - uses: actions/setup-node@v5
+        with:
+          node-version: 24
+      - run: make deps-frontend
+      - run: make lint-json
+
   lint-swagger:
     if: needs.files-changed.outputs.swagger == 'true'
     needs: files-changed