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/components/layout/breadcrumbs.tsx

@@ -83,7 +83,8 @@ export function Breadcrumbs() {
             <BreadcrumbItem>
               <BreadcrumbLink asChild>
                 <Link
-                  href={`/${currentPortSlug}/dashboard`}
+                  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                  href={`/${currentPortSlug}/dashboard` as any}
                   className="text-muted-foreground hover:text-foreground transition-colors"
                 >
                   {currentPort.name}
@@ -108,7 +109,8 @@ export function Breadcrumbs() {
               ) : (
                 <BreadcrumbLink asChild>
                   <Link
-                    href={crumb.href}
+                    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                    href={crumb.href as any}
                     className="text-muted-foreground hover:text-foreground transition-colors"
                   >
                     {crumb.label}