Add Sort Lines tool

[GhDj]

Summary

Add new Sort Lines tool with the following features:

• Sort A-Z / Z-A (alphabetical)
• Natural sort (smart alphanumeric: file1, file2, file10)
• Numeric sort (ascending/descending)
• Sort by line length
• Reverse line order
• Remove duplicates (dedupe)
• Shuffle (randomize)

Options:

• Case sensitive toggle
• Trim whitespace
• Remove empty lines

Changes

• resources/views/tools/sort-lines.blade.php - New tool view
• app/Http/Controllers/ToolController.php - Add sortLines method and homepage entry
• resources/views/home.blade.php - Add sort icon
• routes/web.php - Add route and sitemap entry
• tests/Feature/WebRoutesTest.php - Add tests (59 tests passing)

Test plan

• Load /tools/sort-lines page
• Enter sample text with multiple lines
• Test A-Z sorting
• Test Remove Duplicates
• Test Shuffle
• Verify case sensitive option works