Fix all TypeScript errors: restore proper types and typed route casts

- Restore `as any` casts for Next.js typedRoutes on dynamic routes
- Use proper types for PDF templates, invoice/expense data, DB schema
- Fix PgColumn casts in sort helpers for expenses/invoices
- Add null guards for optional port/client in record-export
- Fix vitest config (remove invalid poolOptions)
- Lint: 0 errors, TypeScript: 0 errors

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/lib/pdf/templates/interest-summary-template.ts

@@ -64,13 +64,13 @@ export function buildInterestSummaryInputs(
     .join('  |  ');
 
   const milestones = [
-    `First contact: ${formatDate(interest.dateFirstContact)}`,
-    `Last contact: ${formatDate(interest.dateLastContact)}`,
-    `EOI sent: ${formatDate(interest.dateEoiSent)}`,
-    `EOI signed: ${formatDate(interest.dateEoiSigned)}`,
-    `Contract sent: ${formatDate(interest.dateContractSent)}`,
-    `Contract signed: ${formatDate(interest.dateContractSigned)}`,
-    `Deposit received: ${formatDate(interest.dateDepositReceived)}`,
+    `First contact: ${formatDate(interest.dateFirstContact as Date | string | null | undefined)}`,
+    `Last contact: ${formatDate(interest.dateLastContact as Date | string | null | undefined)}`,
+    `EOI sent: ${formatDate(interest.dateEoiSent as Date | string | null | undefined)}`,
+    `EOI signed: ${formatDate(interest.dateEoiSigned as Date | string | null | undefined)}`,
+    `Contract sent: ${formatDate(interest.dateContractSent as Date | string | null | undefined)}`,
+    `Contract signed: ${formatDate(interest.dateContractSigned as Date | string | null | undefined)}`,
+    `Deposit received: ${formatDate(interest.dateDepositReceived as Date | string | null | undefined)}`,
   ].join('\n');
 
   const notesText = interest.notes
@@ -82,13 +82,13 @@ export function buildInterestSummaryInputs(
       ? timeline
           .map(
             (e) =>
-              `${formatDate(e.createdAt)}  ${e.action ?? e.eventType ?? 'event'}  ${e.entityType ?? e.type ?? ''}${e.fieldChanged ? `  [${e.fieldChanged}]` : ''}`,
+              `${formatDate(e.createdAt as Date | string | null | undefined)}  ${e.action ?? e.eventType ?? 'event'}  ${e.entityType ?? e.type ?? ''}${e.fieldChanged ? `  [${e.fieldChanged}]` : ''}`,
           )
           .join('\n')
       : 'No timeline events';
 
   return {
-    portName: port?.name ?? 'Port Nimara',
+    portName: (port?.name as string) ?? 'Port Nimara',
     title: `Interest Summary — ${client?.fullName ?? 'Unknown Client'}`,
     clientInfo,
     berthInfo,