Sweep all .cshtml files for encoding corruption; add pre-commit guard

Replace all corruption variants with HTML entities across 226 view files:
- 3-char UTF-8-as-Win1252 sequences (ae-corruption)
- Standalone smart/curly quotes that break C# Razor expressions
- Partially re-corrupted variants where the 3rd byte was normalised to ASCII

tools/Fix-Encoding.ps1: re-runnable sweep; uses [char] code points so the
script itself never contains a literal non-ASCII character; supports -DryRun

.githooks/pre-commit: blocks commits containing the ae-corruption byte
signature (xc3xa2xe2x82xac); git core.hooksPath = .githooks so the
hook is repo-committed and active for all future work on this machine.

Build clean; 225 unit tests pass.

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

src/PowderCoating.Web/Views/AuditLog/Index.cshtml

@@ -55,7 +55,7 @@
             <form method="get" class="row g-2 align-items-end">
                 <div class="col-md-3">
                     <input name="search" value="@ViewBag.Search" class="form-control form-control-sm"
-                           placeholder="User, entity name, ID…" />
+                           placeholder="User, entity name, ID&hellip;" />
                 </div>
                 <div class="col-md-2">
                     <select name="entityType" class="form-select form-select-sm">
@@ -145,7 +145,7 @@
             </table>
         </div>
 
-        <!-- Mobile card view — shown on screens < 992px (table-responsive hidden by mobile-cards.css) -->
+        <!-- Mobile card view &mdash; shown on screens < 992px (table-responsive hidden by mobile-cards.css) -->
         <div class="mobile-card-view">
             <div class="mobile-card-list">
                 @if (!Model.Any())
@@ -196,7 +196,7 @@
         {
             <div class="card-footer d-flex align-items-center justify-content-between py-2">
                 <small class="text-muted">
-                    Showing @((page - 1) * pageSize + 1)–@Math.Min(page * pageSize, totalCount) of @totalCount.ToString("N0")
+                    Showing @((page - 1) * pageSize + 1)&ndash;@Math.Min(page * pageSize, totalCount) of @totalCount.ToString("N0")
                 </small>
                 <nav>
                     <ul class="pagination pagination-sm mb-0">