feat(deps): bump zod 3→4 + @hookform/resolvers 3→5

Resolved 65 type errors across the codebase via these v4 migration
patterns:

- `ZodError.errors` renamed to `ZodError.issues` (4 call sites in auth
  routes + central error handler).
- `z.record(value)` now requires explicit key type: `z.record(z.string(),
  value)`. Updated 7 sites across templates / forms / saved-views /
  website-inquiries.
- `.refine(check, msgFn)` second-arg shape changed — now requires an
  `{ error: (issue) => ... }` object form. Updated
  `mergeFieldsSchema` in document-templates validator.
- `.transform(...).default(...)` chains: v4 enforces default value type
  matches transform OUTPUT. Reordered to `.default(...).transform(...)`
  in list-query / company-memberships handlers.
- `z.coerce.*()` INPUT type widened to `unknown` in v4. Service signatures
  using `z.input<typeof schema>` (kept for caller flexibility around
  defaults) now re-parse via `schema.parse(data)` to recover the
  post-coercion shape Drizzle needs. Done in berth-reservations service.
  Invoice service narrows `lineItems` locally with a typed cast since
  re-parsing would double-validate.
- `.optional().transform(...)` no longer propagates the optional marker
  through v4's new ZodPipe. Moved `.optional()` to the END of chain in
  `optionalDesiredDimSchema` (interests) and documents list query
  (folderId, signatureOnly).
- ZodIssue subtype shapes simplified: `received` removed from
  invalid_type, `type` renamed to `origin` on too_small. Test fixtures
  updated.
- @hookform/resolvers v5 splits Resolver into 3-generic form (Input,
  Context, Output). useForm calls in 6 forms (client, yacht, berth,
  interest, expense, invoices-new-page) now pass explicit generics:
  `useForm<z.input<typeof schema>, unknown, z.infer<typeof schema>>`.

Verified: tsc clean (0 errors), vitest 1293/1293 pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/berths/berth-form.tsx

@@ -24,6 +24,7 @@ import { CurrencyInput } from '@/components/shared/currency-input';
 import { CurrencySelect } from '@/components/shared/currency-select';
 import { apiFetch } from '@/lib/api/client';
 import { toastError } from '@/lib/api/toast-error';
+import type { z } from 'zod';
 import { updateBerthSchema, type UpdateBerthInput } from '@/lib/validators/berths';
 import {
   BERTH_AREAS,
@@ -120,7 +121,7 @@ export function BerthForm({ berth, open, onOpenChange }: BerthFormProps) {
     setValue,
     watch,
     formState: { isSubmitting },
-  } = useForm<UpdateBerthInput>({
+  } = useForm<z.input<typeof updateBerthSchema>, unknown, UpdateBerthInput>({
     resolver: zodResolver(updateBerthSchema),
     defaultValues: {
       area: berth.area ?? undefined,
@@ -403,7 +404,7 @@ export function BerthForm({ berth, open, onOpenChange }: BerthFormProps) {
               <div className="space-y-2">
                 <Label>Price</Label>
                 <CurrencyInput
-                  value={watch('price') ?? ''}
+                  value={(watch('price') as number | null | undefined) ?? ''}
                   currency={watch('priceCurrency') ?? 'USD'}
                   onChange={(v) => setValue('price', v ?? undefined, { shouldDirty: true })}
                 />