fix: skip CI/CD workflows for documentation-only changes

- Add comprehensive paths-ignore to all workflows to skip runs when only docs are changed
- Standardize pattern ordering across all workflow files
- Fix redundant path configuration in benchmark-pr.yml
- Add support for more documentation file types (*.txt, examples/**, .gitignore, etc.)
- Ensure LICENSE* pattern covers all license file variants

This optimization saves CI/CD minutes and reduces costs by avoiding unnecessary
test runs, Docker builds, and benchmarks for documentation-only commits.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/docker-build-n8n.yml

@@ -6,9 +6,35 @@ on:
       - main
     tags:
       - 'v*'
+    paths-ignore:
+      - '**.md'
+      - '**.txt'
+      - 'docs/**'
+      - 'examples/**'
+      - '.github/FUNDING.yml'
+      - '.github/ISSUE_TEMPLATE/**'
+      - '.github/pull_request_template.md'
+      - '.gitignore'
+      - 'LICENSE*'
+      - 'ATTRIBUTION.md'
+      - 'SECURITY.md'
+      - 'CODE_OF_CONDUCT.md'
   pull_request:
     branches:
       - main
+    paths-ignore:
+      - '**.md'
+      - '**.txt'
+      - 'docs/**'
+      - 'examples/**'
+      - '.github/FUNDING.yml'
+      - '.github/ISSUE_TEMPLATE/**'
+      - '.github/pull_request_template.md'
+      - '.gitignore'
+      - 'LICENSE*'
+      - 'ATTRIBUTION.md'
+      - 'SECURITY.md'
+      - 'CODE_OF_CONDUCT.md'
   workflow_dispatch:
 
 env: