Apply code formatting and cleanup from linting

- Add reports/ directory to .gitignore (test coverage output)
- Format test files with black/ruff (line length adjustments)
- Add missing newlines at end of files

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

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

Author: elifarley

.gitignore

@@ -48,6 +48,7 @@ coverage.xml
 *.py,cover
 .hypothesis/
 .pytest_cache/
+reports/
 
 # Translations
 *.mo

tests/test_cli.py

@@ -118,7 +118,9 @@ def test_skip_word_count_column_combinations(self):
             assert "Size" in header
 
             # Test 4: --skip-word-count + --skip-header + --skip-totals
-            code, out = run_cli([str(tmppath), "--skip-word-count", "--skip-header", "--skip-totals"])
+            code, out = run_cli(
+                [str(tmppath), "--skip-word-count", "--skip-header", "--skip-totals"]
+            )
             assert code == 0
             lines = out.splitlines()
             # Should have only data lines, no headers or totals
@@ -148,7 +150,9 @@ def test_skip_word_count_tree_mode_structure(self):
             (subsub / "deep.txt").write_text("deep content")
 
             # Test tree mode with --skip-word-count
-            code, out_tree = run_cli([str(tmppath), "--tree", "--skip-word-count", "--max-depth", "2"])
+            code, out_tree = run_cli(
+                [str(tmppath), "--tree", "--skip-word-count", "--max-depth", "2"]
+            )
             assert code == 0
             lines = out_tree.splitlines()
 
@@ -159,7 +163,9 @@ def test_skip_word_count_tree_mode_structure(self):
 
             # Should have tree characters in data lines
             data_lines = lines[1:]
-            has_tree_chars = any("├── " in line or "└── " in line or "│  " in line for line in data_lines)
+            has_tree_chars = any(
+                "├── " in line or "└── " in line or "│  " in line for line in data_lines
+            )
             assert has_tree_chars
 
             # No "- " pattern in data lines since Words column is hidden

tests/test_headers_totals.py

@@ -304,4 +304,4 @@ def test_tree_mode_structure_with_headers(self):
             # Should contain tree characters
             assert "├──" in tree_content or "└──" in tree_content
             # Should contain directory names with slashes
-            assert "/" in tree_content
+            assert "/" in tree_content