feat(ci): add ignored paths for docs and non-code files

Files matching ignored patterns (docs, markdown, configs, examples)
will not trigger any tests, saving CI resources.

.github/scripts/test-impact.py

@@ -51,6 +51,23 @@ def matches_pattern(file_path: str, pattern: str) -> bool:
     return fnmatch.fnmatch(file_path, pattern)
 
 
+def filter_ignored_files(
+    changed_files: list[str], ignored_paths: list[str]
+) -> list[str]:
+    """Filter out files that match ignored patterns."""
+    filtered = []
+    for file_path in changed_files:
+        is_ignored = False
+        for pattern in ignored_paths:
+            if matches_pattern(file_path, pattern):
+                print(f"  [IGNORED] {file_path} matches {pattern}", file=sys.stderr)
+                is_ignored = True
+                break
+        if not is_ignored:
+            filtered.append(file_path)
+    return filtered
+
+
 def check_critical_paths(changed_files: list[str], critical_paths: list[str]) -> bool:
     """Check if any changed file matches critical paths."""
     for file_path in changed_files:
@@ -159,6 +176,26 @@ def main():
     # Load configuration
     config = load_config()
 
+    # Filter out ignored files (docs, configs, etc.)
+    ignored_paths = config.get("ignored", {}).get("paths", [])
+    changed_files = filter_ignored_files(changed_files, ignored_paths)
+
+    if not changed_files:
+        print("\nAll changed files are ignored (docs, configs, etc.)", file=sys.stderr)
+        print("No tests needed.", file=sys.stderr)
+        set_github_output("run-all", "false")
+        set_github_output("sdk-tests", "")
+        set_github_output("api-tests", "")
+        set_github_output("ui-e2e", "")
+        set_github_output("modules", "none-ignored")
+        set_github_output("has-tests", "false")
+        return
+
+    print(
+        f"\n{len(changed_files)} files remain after filtering ignored paths",
+        file=sys.stderr,
+    )
+
     # Check critical paths
     critical_paths = config.get("critical", {}).get("paths", [])
     if check_critical_paths(changed_files, critical_paths):

.github/test-impact.yml

@@ -3,6 +3,40 @@
 #
 # Usage: Changes to paths in 'critical' always run all tests.
 #        Changes to paths in 'modules' run only the mapped tests.
+#        Changes to paths in 'ignored' don't trigger any tests.
+
+# Ignored paths - changes here don't trigger any tests
+# Documentation, configs, and other non-code files
+ignored:
+  paths:
+    # Documentation
+    - docs/**
+    - "*.md"
+    - "**/*.md"
+    - mkdocs.yml
+    
+    # Config files that don't affect runtime
+    - .gitignore
+    - .gitattributes
+    - .editorconfig
+    - .pre-commit-config.yaml
+    - .backportrc.json
+    - CODEOWNERS
+    - LICENSE
+    
+    # IDE/Editor configs
+    - .vscode/**
+    - .idea/**
+    
+    # Examples and contrib (not production code)
+    - examples/**
+    - contrib/**
+    
+    # Skills (AI agent configs, not runtime)
+    - skills/**
+    
+    # Permissions docs
+    - permissions/**
 
 # Critical paths - changes here run ALL tests
 # These are foundational/shared code that can affect anything