fix: Print report showing blank preview and wasted first page

The print CSS was hiding all .card elements, which contained the
actual results content. Replaced with compact print-friendly styles:
summary cards display as an inline row, redundant stock summary is
hidden, and spacing is tightened throughout.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CutList.Web/Components/Pages/Jobs/Results.razor

@@ -60,7 +60,7 @@ else
         }
 
         <!-- Overall Summary Cards -->
-        <div class="row mb-4">
+        <div class="row mb-4 print-summary">
             <div class="col-md-3 col-6 mb-3">
                 <div class="card text-center">
                     <div class="card-body">
@@ -96,7 +96,7 @@ else
         </div>
 
         <!-- Stock Summary -->
-        <div class="row mb-4">
+        <div class="row mb-4 print-stock-summary">
             <div class="col-md-6 mb-3">
                 <div class="card border-success">
                     <div class="card-header bg-success text-white">