Apply standard Go formatting and update project documentation

- Run go fmt on all Go files to ensure consistent formatting
- Add official Go tooling commands to CLAUDE.md for code quality
- Update project status to reflect current implementation state

collector/matcher.go

@@ -40,7 +40,7 @@ type PatternMatcher struct {
 func NewPatternMatcher(pattern string) *PatternMatcher {
 	// Remove trailing slash if present
 	pattern = strings.TrimSuffix(pattern, "/")
-	
+
 	return &PatternMatcher{
 		pattern:         pattern,
 		matchedDirs:     make(map[string]bool),
@@ -58,27 +58,27 @@ func (m *PatternMatcher) ShouldInclude(path string, info os.FileInfo) bool {
 		}
 		return false // Don't include the directory itself, only files within
 	}
-	
+
 	// For files, check if any parent directory is in the matched set
 	dir := filepath.Dir(path)
 	for {
 		if m.matchedDirs[dir] {
 			return true
 		}
-		
+
 		// Also check if this directory matches the pattern (in case we haven't seen it yet)
 		if matched, err := m.dirMatchesPattern(dir); err == nil && matched {
 			m.matchedDirs[dir] = true
 			return true
 		}
-		
+
 		parent := filepath.Dir(dir)
 		if parent == dir || parent == "." {
 			break
 		}
 		dir = parent
 	}
-	
+
 	return false
 }
 
@@ -86,26 +86,26 @@ func (m *PatternMatcher) ShouldInclude(path string, info os.FileInfo) bool {
 func (m *PatternMatcher) dirMatchesPattern(dirPath string) (bool, error) {
 	// Get the directory name
 	dirName := filepath.Base(dirPath)
-	
+
 	// For simple patterns (no path separators), just match the directory name
 	if len(m.patternSegments) == 1 {
 		return filepath.Match(m.pattern, dirName)
 	}
-	
+
 	// For complex patterns, we need to match the full path segments
 	pathSegments := strings.Split(dirPath, string(os.PathSeparator))
-	
+
 	// Try to match the pattern segments against the path segments
 	if len(pathSegments) < len(m.patternSegments) {
 		return false, nil
 	}
-	
+
 	// Check each pattern segment against the corresponding path segment
 	for i := 0; i < len(m.patternSegments); i++ {
 		// Start from the end of both slices
 		patternIdx := len(m.patternSegments) - 1 - i
 		pathIdx := len(pathSegments) - 1 - i
-		
+
 		matched, err := filepath.Match(m.patternSegments[patternIdx], pathSegments[pathIdx])
 		if err != nil {
 			return false, err
@@ -114,7 +114,7 @@ func (m *PatternMatcher) dirMatchesPattern(dirPath string) (bool, error) {
 			return false, nil
 		}
 	}
-	
+
 	return true, nil
 }
 
@@ -136,4 +136,4 @@ func (m *CompositeMatcher) ShouldInclude(path string, info os.FileInfo) bool {
 		}
 	}
 	return false
-}
+}