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/Edit.cshtml

@@ -1,4 +1,4 @@
-@model PowderCoating.Application.DTOs.Job.UpdateJobDto
+@model PowderCoating.Application.DTOs.Job.UpdateJobDto
 @using PowderCoating.Core.Entities
 
 @{
@@ -26,7 +26,7 @@
                     <a tabindex="0" class="help-icon" role="button"
                        data-bs-toggle="popover" data-bs-placement="right" data-bs-trigger="focus"
                        data-bs-title="Job Details"
-                       data-bs-content="Core job information. Priority and due date are visible on the shop floor board and job list. Customer PO is the customer's own reference number — it appears on invoices. Special Instructions go directly to the shop floor worker on the work order.">
+                       data-bs-content="Core job information. Priority and due date are visible on the shop floor board and job list. Customer PO is the customer's own reference number &mdash; it appears on invoices. Special Instructions go directly to the shop floor worker on the work order.">
                         <i class="bi bi-question-circle"></i>
                     </a>
                 </div>
@@ -45,7 +45,7 @@
                             <a tabindex="0" class="help-icon" role="button"
                                data-bs-toggle="popover" data-bs-placement="right" data-bs-trigger="focus"
                                data-bs-title="Job Status"
-                               data-bs-content="Tracks where the job is in the workflow: Pending → Approved → Sandblasting → Cleaning → Coating → Curing → QualityCheck → Completed → ReadyForPickup → Delivered. Status changes trigger customer email notifications (if enabled). Use OnHold to pause work without losing progress.">
+                               data-bs-content="Tracks where the job is in the workflow: Pending â†' Approved â†' Sandblasting â†' Cleaning â†' Coating â†' Curing â†' QualityCheck â†' Completed â†' ReadyForPickup â†' Delivered. Status changes trigger customer email notifications (if enabled). Use OnHold to pause work without losing progress.">
                                 <i class="bi bi-question-circle"></i>
                             </a>
                         </label>
@@ -57,7 +57,7 @@
                             <a tabindex="0" class="help-icon" role="button"
                                data-bs-toggle="popover" data-bs-placement="right" data-bs-trigger="focus"
                                data-bs-title="Job Priority"
-                               data-bs-content="Controls sort order on the shop floor board and job list. Rush and Urgent jobs are highlighted in red/orange. Normal is the default. Raise priority only when the customer has an actual deadline constraint — overuse of Rush dilutes its meaning for the shop floor team.">
+                               data-bs-content="Controls sort order on the shop floor board and job list. Rush and Urgent jobs are highlighted in red/orange. Normal is the default. Raise priority only when the customer has an actual deadline constraint &mdash; overuse of Rush dilutes its meaning for the shop floor team.">
                                 <i class="bi bi-question-circle"></i>
                             </a>
                         </label>
@@ -85,7 +85,7 @@
                             <a tabindex="0" class="help-icon" role="button"
                                data-bs-toggle="popover" data-bs-placement="right" data-bs-trigger="focus"
                                data-bs-title="Due Date"
-                               data-bs-content="The customer's deadline — when the work must be ready for pickup or delivery. Overdue jobs (past due date and not yet completed) are highlighted in red on the job list.">
+                               data-bs-content="The customer's deadline &mdash; when the work must be ready for pickup or delivery. Overdue jobs (past due date and not yet completed) are highlighted in red on the job list.">
                                 <i class="bi bi-question-circle"></i>
                             </a>
                         </label>
@@ -170,7 +170,7 @@
                     <a tabindex="0" class="help-icon" role="button"
                        data-bs-toggle="popover" data-bs-placement="right" data-bs-trigger="focus"
                        data-bs-title="Job Items"
-                       data-bs-content="Each item represents a physical piece being coated. Use the wizard to pick from the catalog, enter custom dimensions, or upload a photo for AI analysis. Each item gets its own coating specification — color, powder, finish, and cure details. You can add multiple coating passes per item for multi-color or primer+topcoat work.">
+                       data-bs-content="Each item represents a physical piece being coated. Use the wizard to pick from the catalog, enter custom dimensions, or upload a photo for AI analysis. Each item gets its own coating specification &mdash; color, powder, finish, and cure details. You can add multiple coating passes per item for multi-color or primer+topcoat work.">
                         <i class="bi bi-question-circle"></i>
                     </a>
                 </div>