refactor(clients): strip yacht/company/proxy fields from validator

Remove deprecated companyName, isProxy, proxyType, actualOwnerName, yacht
dimensions, and berthSizeDesired fields from createClientSchema and the
isProxy filter from listClientsSchema. First step of PR 8; cascading TS
errors in clients.service.ts and client-form.tsx are addressed in 8.2/8.3.

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

src/lib/validators/clients.ts

@@ -17,19 +17,7 @@ export const contactSchema = z.object({
 export const createClientSchema = z.object({
   fullName: z.string().min(1).max(200),
   contacts: z.array(contactSchema).min(1, 'At least one contact is required'),
-  companyName: z.string().optional(),
   nationality: z.string().optional(),
-  isProxy: z.boolean().optional().default(false),
-  proxyType: z.string().optional(),
-  actualOwnerName: z.string().optional(),
-  yachtName: z.string().optional(),
-  yachtLengthFt: z.string().optional(),
-  yachtWidthFt: z.string().optional(),
-  yachtDraftFt: z.string().optional(),
-  yachtLengthM: z.string().optional(),
-  yachtWidthM: z.string().optional(),
-  yachtDraftM: z.string().optional(),
-  berthSizeDesired: z.string().optional(),
   preferredContactMethod: z.enum(['email', 'phone', 'whatsapp']).optional(),
   preferredLanguage: z.string().optional(),
   timezone: z.string().optional(),
@@ -40,17 +28,15 @@ export const createClientSchema = z.object({
 
 // ─── Update ──────────────────────────────────────────────────────────────────
 
-export const updateClientSchema = createClientSchema.omit({ contacts: true, tagIds: true }).partial();
+export const updateClientSchema = createClientSchema
+  .omit({ contacts: true, tagIds: true })
+  .partial();
 
 // ─── List ─────────────────────────────────────────────────────────────────────
 
 export const listClientsSchema = baseListQuerySchema.extend({
   source: z.enum(['website', 'manual', 'referral', 'broker']).optional(),
   nationality: z.string().optional(),
-  isProxy: z
-    .string()
-    .transform((v) => v === 'true')
-    .optional(),
   tagIds: z
     .string()
     .transform((v) => v.split(',').filter(Boolean))