🐛 Fix .git exclusion pattern to allow .github files

Update regex pattern to exclude only .git directory while preserving
.github files like workflows and templates.

- Change pattern from '\.git' to '(^|/)\.git(/|$)' for precise matching
- Add comprehensive test coverage for both exclusion and inclusion cases
- Fixes issue where .github directory was incorrectly filtered out

Author: hyperb1iss

src/file_analyzers/mod.rs

@@ -171,7 +171,7 @@ impl FileAnalyzer for DefaultAnalyzer {
 pub fn should_exclude_file(path: &str) -> bool {
     log_debug!("Checking if file should be excluded: {}", path);
     let exclude_patterns = vec![
-        (String::from(r"\.git"), false),
+        (String::from(r"(^|/)\.git(/|$)"), false), // Only exclude .git directory, not .github
         (String::from(r"\.svn"), false),
         (String::from(r"\.hg"), false),
         (String::from(r"\.DS_Store"), false),

tests/file_analyzers_tests.rs

@@ -1,5 +1,6 @@
 use git_iris::context::{ChangeType, StagedFile};
 use git_iris::file_analyzers::get_analyzer;
+use git_iris::file_analyzers::should_exclude_file;
 
 #[test]
 fn test_rust_analyzer() {
@@ -622,3 +623,22 @@ fn test_generic_text_analyzer() {
     assert!(tags_analysis.contains("servlet"));
     assert!(tags_analysis.contains("filter"));
 }
+
+#[test]
+fn test_github_files_not_excluded() {
+    // .github files should NOT be excluded
+    assert!(!should_exclude_file(".github/workflows/ci.yml"));
+    assert!(!should_exclude_file(".github/cicd.yml"));
+    assert!(!should_exclude_file(".github/ISSUE_TEMPLATE.md"));
+    assert!(!should_exclude_file("project/.github/workflows/test.yml"));
+
+    // .git directory should still be excluded
+    assert!(should_exclude_file(".git/config"));
+    assert!(should_exclude_file(".git/objects/abc123"));
+    assert!(should_exclude_file("project/.git/HEAD"));
+
+    // Other git-containing paths should not be excluded
+    assert!(!should_exclude_file("my-git-project/file.txt"));
+    assert!(!should_exclude_file("gitignore.txt"));
+    assert!(!should_exclude_file("digital-art.png"));
+}