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/league_scoreboard_display.html

@@ -851,6 +851,7 @@
     </div>
     <div class="navbar-controls">
       <a href="/" class="nav-btn">📺 <span data-i18n="navigation.dashboard">Dashboard</span></a>
+      <button class="nav-btn" onclick="exportLeagueJSON()">💾 <span data-i18n="general.export">Export JSON</span></button>
       <button class="nav-btn" onclick="window.print()">🖨️ <span data-i18n="general.print">Print</span></button>
     </div>
   </div>
@@ -1154,6 +1155,8 @@
             tournamentCells += '<td><span class="tournament-score joker">🃏</span></td>';
           } else {
             const score = result.score;
+            const tensCount = result.tens_count || 0;
+
             // Check if this specific tournament index should be excluded
             const isExcluded = best4Logic.excludedIndices.includes(participatedTournamentIndex) && best4Logic.allScores.length > 4;
             const scoreClass = isExcluded ? 'excluded' : 'counted';
@@ -1254,6 +1257,31 @@
     // Initialize when page loads
     document.addEventListener('DOMContentLoaded', initializePage);
 
+    // Export league data as JSON
+    function exportLeagueJSON() {
+      const leagueData = {{ league | tojson | safe }};
+
+      // Wrap in archive format for compatibility
+      const archiveData = {
+        league: leagueData,
+        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 league info
+      const leagueId = leagueData.league_id || 'league';
+      const date = new Date().toISOString().slice(0, 10);
+      link.download = `${leagueId}_${date}.json`;
+
+      link.click();
+      URL.revokeObjectURL(url);
+    }
+
     // Keyboard shortcuts
     document.addEventListener('keydown', function(event) {
       if (event.key === 'r' || event.key === 'R') {