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/Intake.cshtml

@@ -1,7 +1,7 @@
 @model (PowderCoating.Application.DTOs.Job.JobDto Job, PowderCoating.Application.DTOs.Job.IntakeJobDto Form)
 
 @{
-    ViewData["Title"] = $"Part Intake — {Model.Job.JobNumber}";
+    ViewData["Title"] = $"Part Intake — {Model.Job.JobNumber}";
     ViewData["PageIcon"] = "bi-box-seam";
     var job = Model.Job;
     var form = Model.Form;
@@ -122,7 +122,7 @@
                         {
                             <div id="countMismatchAlert" class="alert alert-warning mt-2 py-2 d-none">
                                 <i class="bi bi-exclamation-triangle me-1"></i>
-                                Count doesn't match expected — note the discrepancy in condition notes.
+                                Count doesn't match expected &mdash; note the discrepancy in condition notes.
                             </div>
                         }
                     </div>
@@ -246,7 +246,7 @@
         const formData = new FormData();
         formData.append('jobId', jobId);
         formData.append('photo', file);
-        formData.append('caption', 'Intake — before');
+        formData.append('caption', 'Intake &mdash; before');
         formData.append('photoType', '0'); // JobPhotoType.Before = 0
 
         const token = document.querySelector('input[name="__RequestVerificationToken"]').value;