Fix all ESLint errors: remove unused imports, replace any types

- Remove ~60 unused imports and variables across 88 files
- Replace ~80 `any` type annotations with proper types (unknown,
  Record<string, unknown>, or specific types)
- Prefix unused callback args with underscore
- Fix unescaped JSX entities
- Lint now passes cleanly (0 errors, 2 intentional img warnings)

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

src/components/clients/client-form.tsx

@@ -96,15 +96,15 @@ export function ClientForm({ open, onOpenChange, client }: ClientFormProps) {
         actualOwnerName: client.actualOwnerName ?? undefined,
         yachtName: client.yachtName ?? undefined,
         berthSizeDesired: client.berthSizeDesired ?? undefined,
-        preferredContactMethod: (client.preferredContactMethod as any) ?? undefined,
+        preferredContactMethod: (client.preferredContactMethod as string) ?? undefined,
         preferredLanguage: client.preferredLanguage ?? undefined,
         timezone: client.timezone ?? undefined,
-        source: (client.source as any) ?? undefined,
+        source: (client.source as string) ?? undefined,
         sourceDetails: client.sourceDetails ?? undefined,
         contacts:
           client.contacts && client.contacts.length > 0
             ? client.contacts.map((c) => ({
-                channel: c.channel as any,
+                channel: c.channel as 'email' | 'phone' | 'whatsapp' | 'other',
                 value: c.value,
                 label: c.label ?? undefined,
                 isPrimary: c.isPrimary ?? false,
@@ -125,6 +125,7 @@ export function ClientForm({ open, onOpenChange, client }: ClientFormProps) {
   const mutation = useMutation({
     mutationFn: async (data: CreateClientInput) => {
       if (isEdit) {
+        // eslint-disable-next-line @typescript-eslint/no-unused-vars
         const { contacts, tagIds: tIds, ...rest } = data;
         await apiFetch(`/api/v1/clients/${client!.id}`, { method: 'PATCH', body: rest });
         if (tIds) {
@@ -217,7 +218,7 @@ export function ClientForm({ open, onOpenChange, client }: ClientFormProps) {
                     <Select
                       value={watch(`contacts.${index}.channel`)}
                       onValueChange={(v) =>
-                        setValue(`contacts.${index}.channel`, v as any)
+                        setValue(`contacts.${index}.channel`, v as 'email' | 'phone' | 'whatsapp' | 'other')
                       }
                     >
                       <SelectTrigger className="h-8">
@@ -356,7 +357,7 @@ export function ClientForm({ open, onOpenChange, client }: ClientFormProps) {
                 <Label>Source</Label>
                 <Select
                   value={watch('source') ?? ''}
-                  onValueChange={(v) => setValue('source', v as any)}
+                  onValueChange={(v) => setValue('source', v as 'website' | 'manual' | 'referral' | 'broker')}
                 >
                   <SelectTrigger>
                     <SelectValue placeholder="Select source" />
@@ -373,7 +374,7 @@ export function ClientForm({ open, onOpenChange, client }: ClientFormProps) {
                 <Label>Preferred Contact Method</Label>
                 <Select
                   value={watch('preferredContactMethod') ?? ''}
-                  onValueChange={(v) => setValue('preferredContactMethod', v as any)}
+                  onValueChange={(v) => setValue('preferredContactMethod', v as 'email' | 'phone' | 'whatsapp')}
                 >
                   <SelectTrigger>
                     <SelectValue placeholder="Select method" />