Planned first release

DECK_LIST_DISPLAY_FEATURE.md

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+# Test: Deck List Display Feature
+
+This demonstrates the new feature added for v1.0.0 that automatically displays the completed deck list at the end of the build process.
+
+## What's New
+
+When a deck build completes successfully, the application will now:
+
+1. **Export both CSV and TXT files** (as before)
+2. **Automatically display the TXT contents** in a formatted box
+3. **Show a user-friendly message** indicating the list is ready for copy/paste
+4. **Display the file path** where the deck was saved
+
+## Example Output
+
+```
+============================================================
+DECK LIST - Atraxa_Superfriends_20250821.txt
+Ready for copy/paste to Moxfield, EDHREC, or other deck builders
+============================================================
+1 Atraxa, Praetors' Voice
+1 Jace, the Mind Sculptor
+1 Elspeth, Knight-Errant
+1 Vraska the Unseen
+1 Sol Ring
+1 Command Tower
+1 Breeding Pool
+... (rest of deck)
+============================================================
+Deck list also saved to: deck_files/Atraxa_Superfriends_20250821.txt
+============================================================
+```
+
+## Benefits
+
+- **No more hunting for files**: Users see their deck immediately
+- **Quick upload to online platforms**: Perfect format for Moxfield, EDHREC, etc.
+- **Still saves to file**: Original file-based workflow unchanged
+- **Clean formatting**: Easy to read and copy
+
+## Technical Details
+
+- Uses the existing `export_decklist_text()` method
+- Adds new `_display_txt_contents()` method for pretty printing
+- Only displays on successful deck completion
+- Handles file errors gracefully with fallback messages
+- Preserves all existing functionality
+
+This feature addresses the common user workflow of wanting to immediately share or upload their completed deck lists without navigating the file system.