fix: correct target and needed calculation in award detail view

Fixes incorrect calculation of target and needed values in award detail page:
- Changed award.target to award.rules?.target (correct path in JSON structure)
- Added missing Target display card for non-points awards (DXCC, DLD, etc.)
- Added null checks to prevent broken calculations for awards without targets

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

src/frontend/src/routes/awards/[id]/+page.svelte

@@ -550,8 +550,8 @@
     <div class="summary">
       {#if entities.length > 0 && entities[0].points !== undefined}
         {@const earnedPoints = filteredEntities.reduce((sum, e) => sum + (e.confirmed ? e.points : 0), 0)}
-        {@const targetPoints = award.target}
+        {@const targetPoints = award.rules?.target}
-        {@const neededPoints = Math.max(0, targetPoints - earnedPoints)}
+        {@const neededPoints = targetPoints !== undefined ? Math.max(0, targetPoints - earnedPoints) : null}
         <div class="summary-card">
           <span class="summary-label">Total Combinations:</span>
           <span class="summary-value">{filteredEntities.length}</span>
@@ -564,6 +564,7 @@
           <span class="summary-label">Points:</span>
           <span class="summary-value">{earnedPoints}</span>
         </div>
+        {#if neededPoints !== null}
           <div class="summary-card unworked">
             <span class="summary-label">Needed:</span>
             <span class="summary-value">{neededPoints}</span>
@@ -572,8 +573,10 @@
             <span class="summary-label">Target:</span>
             <span class="summary-value">{targetPoints}</span>
           </div>
+        {/if}
       {:else}
-        {@const neededCount = award.target ? Math.max(0, award.target - uniqueEntityProgress.worked) : uniqueEntityProgress.total - uniqueEntityProgress.worked}
+        {@const targetCount = award.rules?.target}
+        {@const neededCount = targetCount !== undefined ? Math.max(0, targetCount - uniqueEntityProgress.worked) : null}
         <div class="summary-card">
           <span class="summary-label">Total:</span>
           <span class="summary-value">{uniqueEntityProgress.total}</span>
@@ -586,10 +589,16 @@
           <span class="summary-label">Worked:</span>
           <span class="summary-value">{uniqueEntityProgress.worked}</span>
         </div>
+        {#if neededCount !== null}
           <div class="summary-card unworked">
             <span class="summary-label">Needed:</span>
             <span class="summary-value">{neededCount}</span>
           </div>
+          <div class="summary-card" style="background-color: #e3f2fd; border-color: #2196f3;">
+            <span class="summary-label">Target:</span>
+            <span class="summary-value">{targetCount}</span>
+          </div>
+        {/if}
       {/if}
     </div>