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/Views/Accounts/Edit.cshtml

@@ -144,7 +144,7 @@
     <script>
         // Auto-set AccountType when SubType is changed
         const subTypeToAccountType = {
-            1: 1, 2: 1, 3: 1, 4: 1, 5: 1, 6: 1, 7: 1,   // Asset
+            8: 1, 1: 1, 2: 1, 3: 1, 4: 1, 5: 1, 6: 1, 7: 1,   // Asset
             10: 2, 11: 2, 12: 2, 13: 2,                    // Liability
             20: 3, 21: 3,                                   // Equity
             30: 4, 31: 4, 32: 4,                           // Revenue