Fix company logo missing from PDFs and add AI photo save logging

When a tenant uploads a logo it is stored in Azure Blob Storage and
LogoData (the legacy DB byte[]) is cleared. All PDF controllers were
still reading the now-null LogoData, so logos never appeared on any
PDF after upload. Fixed by injecting ICompanyLogoService into all six
affected controllers (Quotes, Invoices, Deposits, GiftCertificates,
PurchaseOrders, CatalogItems) and loading the blob-stored logo first
before falling back to the legacy DB field.

Also added structured logging to the AI photo promotion path in
QuotesController Create/Edit POST so upload failures are visible in
production logs instead of silently swallowed.

Added onclick safety net to the Create and Edit quote submit buttons
so dynamically-injected hidden fields (AiPhotoTempIds) are written
before iOS Safari collects the form data on submit.

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

src/PowderCoating.Web/Controllers/CatalogItemsController.cs

@@ -40,6 +40,7 @@ namespace PowderCoating.Web.Controllers
         private readonly ICatalogImageService _catalogImageService;
         private readonly IAiCatalogPriceCheckService _priceCheckService;
         private readonly IPlatformSettingsService _platformSettings;
+        private readonly ICompanyLogoService _logoService;
 
         public CatalogItemsController(
             IUnitOfWork unitOfWork,
@@ -52,7 +53,8 @@ namespace PowderCoating.Web.Controllers
             ISubscriptionService subscriptionService,
             ICatalogImageService catalogImageService,
             IAiCatalogPriceCheckService priceCheckService,
-            IPlatformSettingsService platformSettings)
+            IPlatformSettingsService platformSettings,
+            ICompanyLogoService logoService)
         {
             _unitOfWork = unitOfWork;
             _mapper = mapper;
@@ -65,6 +67,7 @@ namespace PowderCoating.Web.Controllers
             _catalogImageService = catalogImageService;
             _priceCheckService = priceCheckService;
             _platformSettings = platformSettings;
+            _logoService = logoService;
         }
 
         /// <summary>
@@ -906,11 +909,12 @@ namespace PowderCoating.Web.Controllers
                     .ToList();
 
                 // Generate PDF
+                var (logoData, logoContentType) = await LoadCompanyLogoAsync(company);
                 var pdfBytes = await _pdfService.GenerateCatalogPdfAsync(
                     itemsByCategory,
                     company.CompanyName,
-                    company.LogoData,
-                    company.LogoContentType
+                    logoData,
+                    logoContentType
                 );
 
                 // Return PDF file
@@ -1146,6 +1150,17 @@ namespace PowderCoating.Web.Controllers
             }
             return parts.Count > 0 ? string.Join(" > ", parts) : "Uncategorized";
         }
+
+        private async Task<(byte[]? LogoData, string? LogoContentType)> LoadCompanyLogoAsync(Company? company)
+        {
+            if (company == null) return (null, null);
+            if (!string.IsNullOrEmpty(company.LogoFilePath))
+            {
+                var (ok, content, contentType, _) = await _logoService.GetCompanyLogoAsync(company.LogoFilePath);
+                if (ok) return (content, contentType);
+            }
+            return (company.LogoData, company.LogoContentType);
+        }
     }
 
     // Helper class for hierarchical display