feat(languages): yml linter pipeline

.github/workflows/languages-yaml-lint.yml

@@ -0,0 +1,69 @@
+# Reusable YAML lint workflow
+# Lives in your central workflows repo, e.g.:
+#   github.com/your-org/.github/.github/workflows/yaml-lint.yml
+#
+# Call it from any repo:
+#   uses: your-org/.github/.github/workflows/yaml-lint.yml@main
+
+name: YAML Lint
+
+on:
+  workflow_call:
+    inputs:
+      paths:
+        description: >
+          Space-separated list of files/directories to lint.
+          Supports glob patterns (passed directly to yamllint).
+        type: string
+        default: "."
+      config-file:
+        description: >
+          Path to a .yamllint.yml config in the calling repo.
+          Ignored if config-data is set.
+        type: string
+        default: ".yamllint.yml"
+      config-data:
+        description: >
+          Inline yamllint config string. Takes precedence over config-file.
+          Example: "{extends: default, rules: {line-length: {max: 120}}}"
+        type: string
+        default: ""
+      strict:
+        description: "Treat warnings as errors (exit 1 on any warning)."
+        type: boolean
+        default: false
+      actionlint:
+        description: "Also run actionlint on .github/workflows/."
+        type: boolean
+        default: true
+      runner:
+        description: "Runner label."
+        type: string
+        default: "ubuntu-latest"
+
+jobs:
+  yamllint:
+    name: yamllint
+    runs-on: ${{ inputs.runner }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: yamllint
+        uses: ibiqlik/action-yamllint@v3
+        with:
+          file_or_dir: ${{ inputs.paths }}
+          config_file: ${{ inputs.config-file }}
+          config_data: ${{ inputs.config-data }}
+          strict: ${{ inputs.strict }}
+
+  actionlint:
+    name: actionlint
+    runs-on: ${{ inputs.runner }}
+    if: ${{ inputs.actionlint }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: actionlint
+        uses: rhysd/actionlint@v1
+        with:
+          ignore: ""