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/Jobs/Details.cshtml

@@ -1,4 +1,4 @@
-@model PowderCoating.Application.DTOs.Job.JobDto
+@model PowderCoating.Application.DTOs.Job.JobDto
 
 @{
     ViewData["Title"] = $"Job {Model.JobNumber}";
@@ -2796,7 +2796,7 @@
 
             document.getElementById('costingMargin').textContent = `${d.grossMargin}%`;
             document.getElementById('costingQuotedMargin').textContent =
-                d.quotedPrice > 0 ? `${d.quotedMargin}% (quoted ${fmt(d.quotedPrice)})` : '—';
+                d.quotedPrice > 0 ? `${d.quotedMargin}% (quoted ${fmt(d.quotedPrice)})` : '—';
 
             // Powder detail lines
             const pBody = document.getElementById('powderLines');
@@ -2900,9 +2900,9 @@
         }
 
         function updateTotals(total) {
-            const fmt = total > 0 ? total.toFixed(2) + ' hrs' : '—';
+            const fmt = total > 0 ? total.toFixed(2) + ' hrs' : '—';
             document.getElementById('totalHoursDisplay').textContent = fmt;
-            document.getElementById('timeEntriesTotalHours').textContent = total > 0 ? total.toFixed(2) : '—';
+            document.getElementById('timeEntriesTotalHours').textContent = total > 0 ? total.toFixed(2) : '—';
         }
 
         // -- Modal helpers -------------------------------------------------