Ad-hoc quote email, accounting improvements, AI lookup fix, and misc service updates

- Quotes: ad-hoc email modal on Quote Details lets staff send to an address not on file;
  QuotesController passes overrideEmail through to NotificationService
- Quotes/Details view: SMS consent display, email/SMS send button state based on consent
- Accounting module: AccountingDisplayHelpers for consistent ledger formatting;
  AccountsController + Accounts views improvements; AccountingEnums additions
- Bills/Expenses: AI account categorization fixes in BillsController and ExpensesController
- InventoryAiLookupService: TDS cure fallback no longer fires on AiAugmentFromUrl path
  (LookupByUrlAsync already has it built in — was double-fetching)
- PdfService: quote/invoice PDF updates
- PricingCalculationService: minor pricing logic fix
- QuoteProfile: mapping updates for new quote fields
- ApplicationDbContextModelSnapshot: catches up to all 4 migrations in this branch

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

src/PowderCoating.Web/Controllers/AccountsController.cs

@@ -9,6 +9,7 @@ using PowderCoating.Core.Entities;
 using PowderCoating.Core.Enums;
 using PowderCoating.Core.Interfaces;
 using PowderCoating.Shared.Constants;
+using PowderCoating.Web.Helpers;
 
 namespace PowderCoating.Web.Controllers;
 
@@ -88,8 +89,8 @@ public class AccountsController : Controller
             dto.AccountSubType = preSubType.Value;
             dto.AccountType = preSubType.Value switch
             {
-                AccountSubType.Checking or AccountSubType.Savings or AccountSubType.AccountsReceivable
-                    or AccountSubType.Inventory or AccountSubType.FixedAsset
+                AccountSubType.Cash or AccountSubType.Checking or AccountSubType.Savings
+                    or AccountSubType.AccountsReceivable or AccountSubType.Inventory or AccountSubType.FixedAsset
                     or AccountSubType.OtherCurrentAsset or AccountSubType.OtherAsset => AccountType.Asset,
                 AccountSubType.AccountsPayable or AccountSubType.CreditCard
                     or AccountSubType.OtherCurrentLiability or AccountSubType.LongTermLiability => AccountType.Liability,
@@ -445,11 +446,11 @@ public class AccountsController : Controller
             .ToList();
 
         ViewBag.AccountTypes = Enum.GetValues<AccountType>()
-            .Select(t => new SelectListItem(t.ToString(), ((int)t).ToString()))
+            .Select(t => new SelectListItem(t.ToDisplayName(), ((int)t).ToString()))
             .ToList();
 
         ViewBag.AccountSubTypes = Enum.GetValues<AccountSubType>()
-            .Select(t => new SelectListItem(t.ToString(), ((int)t).ToString()))
+            .Select(t => new SelectListItem(t.ToDisplayName(), ((int)t).ToString()))
             .ToList();
     }
 }