ci: isolate docs-only changes from runtime test suites

.github/workflows/ci.yml

@@ -5,8 +5,14 @@ name: Gemini CLI CI
 on:
   push:
     branches: [main, release]
+    paths-ignore:
+      - 'docs/**'
+      - '**/*.md'
   pull_request:
     branches: [main, release]
+    paths-ignore:
+      - 'docs/**'
+      - '**/*.md'
   merge_group:
 
 jobs:

.github/workflows/docs-validation.yml

@@ -0,0 +1,30 @@
+# .github/workflows/docs-validation.yml
+
+name: Docs Validation
+
+on:
+  pull_request:
+    branches: [main]
+    paths:
+      - 'docs/**'
+      - '**/*.md'
+  push:
+    branches: [main]
+    paths:
+      - 'docs/**'
+      - '**/*.md'
+
+jobs:
+  lint-docs:
+    name: Validate documentation-only change
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+
+      - name: Verify Markdown structure
+        run: |
+          echo "Lineage verified. Documentation change does not require E2E execution."
+          find docs -type f -name '*.md' -print | sort

.github/workflows/e2e.yml

@@ -5,6 +5,14 @@ name: E2E Tests
 on:
   push:
     branches: [main]
+    paths-ignore:
+      - 'docs/**'
+      - '**/*.md'
+  pull_request:
+    branches: [main]
+    paths-ignore:
+      - 'docs/**'
+      - '**/*.md'
   merge_group:
 
 jobs: