Fix time entry workers, powder usage logging, inventory edit, and mojibake

- JobTimeEntry: migrate to UserId/UserDisplayName; make ShopWorkerId nullable
  (migration MigrateTimeEntriesToUserId)
- Log Time modal: populate worker dropdown from Identity users instead of
  ShopWorkers; fix ShopMobile view same issue
- Inventory Ledger: scan-based JobUsage transactions now appear in
  Powder Usage By Job tab (synthesized from InventoryTransaction)
- Inventory Ledger: add Edit button for JobUsage transactions; new
  GetUsageForEdit + EditUsageTransaction endpoints; inventory-ledger.js
- InventoryTransactionRepository: include Job.Customer for ledger queries
- InventoryAiLookupService: handle JSON-LD @graph wrapper (Columbia
  Coatings / WooCommerce+Yoast); add HTML price snippet fallback
- Fix mojibake in 9 views: â†' → →, âœ" → ✓, âš  → ⚠

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}";
@@ -730,7 +730,6 @@
                                     <thead class="table-light">
                                         <tr>
                                             <th>Worker</th>
-                                            <th>Role</th>
                                             <th>Date</th>
                                             <th class="text-end">Hours</th>
                                             <th>Stage</th>
@@ -1311,7 +1310,7 @@
                                 <a asp-action="Intake" asp-route-id="@Model.Id"
                                    class="btn @(Model.IntakeDate.HasValue ? "btn-outline-secondary" : "btn-outline-info")"
                                    title="@(Model.IntakeDate.HasValue ? "Update part intake record" : "Check in parts for this job")">
-                                    <i class="bi bi-box-seam me-2"></i>@(Model.IntakeDate.HasValue ? "Intake ✓" : "Intake")
+                                    <i class=”bi bi-box-seam me-2”></i>@(Model.IntakeDate.HasValue ? "Intake ✓" : "Intake")
                                 </a>
                             }
                             @{
@@ -2198,7 +2197,7 @@
                         <option value="">— Select worker —</option>
                         @foreach (var w in (ViewBag.ShopWorkers as IEnumerable<dynamic> ?? []))
                         {
-                            <option value="@w.Id">@w.Name (@w.Role)</option>
+                            <option value="@w.Id">@w.Name</option>
                         }
                     </select>
                 </div>
@@ -2682,8 +2681,8 @@
 
             // Notes
             const notes = [];
-            if (!d.hasPowderData) notes.push('âš  Add powder cost per lb on coat records to include material cost.');
-            if (!d.hasLaborData) notes.push('âš  Log time entries to include labor cost.');
+            if (!d.hasPowderData) notes.push('⚠ Add powder cost per lb on coat records to include material cost.');
+            if (!d.hasLaborData) notes.push('⚠ Log time entries to include labor cost.');
             if (d.laborLines?.some(l => l.usingFallback)) notes.push('* One or more workers using standard labor rate fallback.');
             document.getElementById('costingNotes').innerHTML = notes.map(n => `<div class="text-muted">${n}</div>`).join('');
 
@@ -2748,7 +2747,6 @@
                 const tr = document.createElement('tr');
                 tr.innerHTML = `
                     <td class="fw-semibold">${esc(e.workerName)}</td>
-                    <td class="text-muted small">${esc(e.workerRole)}</td>
                     <td class="small">${d}</td>
                     <td class="text-end fw-semibold">${e.hoursWorked.toFixed(2)}</td>
                     <td class="small">${e.stage ? `<span class="badge bg-secondary-subtle text-secondary">${esc(e.stage)}</span>` : '<span class="text-muted">—</span>'}</td>
@@ -2786,7 +2784,7 @@
             if (!e) return;
             document.getElementById('timeEntryModalTitle').textContent = 'Edit Time Entry';
             document.getElementById('teEntryId').value = e.id;
-            document.getElementById('teWorkerId').value = e.shopWorkerId;
+            document.getElementById('teWorkerId').value = e.userId ?? '';
             document.getElementById('teWorkDate').value = new Date(e.workDate).toISOString().slice(0, 10);
             document.getElementById('teHoursWorked').value = e.hoursWorked;
             document.getElementById('teStage').value = e.stage ?? '';
@@ -2813,8 +2811,8 @@
             const tok = document.querySelector('input[name="__RequestVerificationToken"]')?.value ?? '';
             const url = id > 0 ? '/Jobs/UpdateTimeEntry' : '/Jobs/AddTimeEntry';
             const body = id > 0
-                ? { id, shopWorkerId: workerId, workDate, hoursWorked: hours, stage: stage || null, notes: notes || null }
-                : { jobId: jid, shopWorkerId: workerId, workDate, hoursWorked: hours, stage: stage || null, notes: notes || null };
+                ? { id, userId: workerId, workDate, hoursWorked: hours, stage: stage || null, notes: notes || null }
+                : { jobId: jid, userId: workerId, workDate, hoursWorked: hours, stage: stage || null, notes: notes || null };
 
             try {
                 const r = await fetch(url, {

src/PowderCoating.Web/Views/Jobs/ShopMobile.cshtml

@@ -1,9 +1,7 @@
 @model List<PowderCoating.Application.DTOs.Job.JobDailyPriorityDto>
-@using PowderCoating.Core.Entities
-
 @{
     Layout = null;
-    var workers = ViewBag.Workers as List<ShopWorker> ?? new();
+    var workers = (ViewBag.Workers as IEnumerable<dynamic>) ?? Array.Empty<dynamic>();
     var currentWorkerId = ViewBag.CurrentWorkerId as string;
     var allStatuses = ViewBag.AllStatuses as List<JobStatusLookup> ?? new();
     var activeCount = Model.Count;