Merge APP_V2/main: Combine quality updates with league features

- Merged remote changes: Liga krog3 and league state management
- Resolved merge conflicts in locale files and templates
- Kept local v1.0.1 version and styling improvements
- Added league combine functionality from remote
- Preserved new league_state.json and tournament_results.json
- Integrated i18n improvements

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

templates/results_display.html

@@ -708,6 +708,7 @@
     </div>
     <div class="navbar-controls">
       <a href="/" class="nav-btn">📺 <span data-i18n="navigation.dashboard">Dashboard</span></a>
+      <button class="nav-btn" onclick="exportResultsJSON()">💾 <span data-i18n="general.export">Export JSON</span></button>
       <button class="nav-btn" onclick="printResults()">🖨️ <span data-i18n="general.print">Print</span></button>
     </div>
   </div>
@@ -1007,6 +1008,33 @@
       }
     }
 
+    // Export results as JSON
+    function exportResultsJSON() {
+      const tournamentData = {{ tournament | tojson | safe }};
+      const resultsData = {{ results | tojson | safe }};
+
+      // Wrap in archive format for compatibility
+      const archiveData = {
+        tournament: tournamentData,
+        results: resultsData,
+        archived_at: new Date().toISOString()
+      };
+
+      const dataStr = JSON.stringify(archiveData, null, 2);
+      const dataBlob = new Blob([dataStr], { type: 'application/json' });
+      const url = URL.createObjectURL(dataBlob);
+      const link = document.createElement('a');
+      link.href = url;
+
+      // Generate filename with tournament info
+      const tournamentId = tournamentData.tournament_id || 'tournament';
+      const date = new Date().toISOString().slice(0, 10);
+      link.download = `${tournamentId}_${date}.json`;
+
+      link.click();
+      URL.revokeObjectURL(url);
+    }
+
     // Initialize when page loads
     document.addEventListener('DOMContentLoaded', initializePage);