refactor(clients): drop deprecated yacht/company/proxy columns

PR 13: now that all reads are migrated to the dedicated yacht / company
/ membership entities, drop the columns that mirrored them on `clients`:
companyName, isProxy, proxyType, actualOwnerName, relationshipNotes,
yachtName, yachtLength{Ft,M}, yachtWidth{Ft,M}, yachtDraft{Ft,M},
berthSizeDesired.

Migration `0008_loud_ikaris.sql` issues the destructive ALTER TABLE
DROP COLUMN statements. Run `pnpm db:push` (or the migration runner) to
apply.

Caller cleanup (zero behavioral change to remaining flows):

- Drops the legacy `generateEoi` flow entirely (route, service function,
  pdfme template, validator schema). The dual-path generate-and-sign
  service from PR 11 has fully replaced it; the route was no longer
  wired to the UI.
- `clients.service`: company-name search column / WHERE / audit value
  removed; search now ranks by full name only.
- `interests.service`: `resolveLeadCategory` reads dimensions from
  `yachts` via `interest.yachtId` instead of the dropped
  `client.yachtLength{Ft,M}`.
- `record-export`: client-summary now lists yachts via owner-side
  lookup (direct + active company memberships); interest-summary fetches
  yacht via `interest.yachtId`. Both PDF templates updated to read
  yacht details from the new entity.
- `client-detail-header`, `client-picker`, `command-search`,
  `search-result-item`, `use-search` hook, `types/domain.ts`,
  `search.service` — drop the companyName badge / sub-label / typed
  field everywhere it was rendered or fetched.
- `ai.ts` worker: drop the company / yacht context lines from the
  prompt (will be re-added later sourced from the new entities).
- `validators/interests.ts`: remove the deprecated public-form flat
  yacht/company fields. The route already ignores them.
- `factories.ts`: drop the `isProxy: false` default.

Tests: 652/652 green; type-check clean. The
`security-sensitive-data` tests use `companyName` / `isProxy` as
arbitrary record keys for a generic util — left unchanged.

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

src/lib/services/interests.service.ts

@@ -66,17 +66,17 @@ async function assertYachtBelongsToClient(
 async function resolveLeadCategory(
   clientId: string,
   leadCategory: string | undefined | null,
+  yachtId?: string | null,
 ): Promise<string | undefined> {
   if (leadCategory && leadCategory !== 'general_interest') {
     return leadCategory;
   }
 
-  const client = await db.query.clients.findFirst({
-    where: eq(clients.id, clientId),
-  });
-
-  if (client && (client.yachtLengthFt || client.yachtLengthM)) {
-    return 'specific_qualified';
+  if (yachtId) {
+    const yacht = await db.query.yachts.findFirst({ where: eq(yachts.id, yachtId) });
+    if (yacht && (yacht.lengthFt || yacht.lengthM)) {
+      return 'specific_qualified';
+    }
   }
 
   return leadCategory ?? undefined;
@@ -275,7 +275,11 @@ export async function createInterest(portId: string, data: CreateInterestInput,
   const { tagIds, ...interestData } = data;
 
   // BR-011: auto-promote leadCategory
-  const resolvedLeadCategory = await resolveLeadCategory(data.clientId, data.leadCategory);
+  const resolvedLeadCategory = await resolveLeadCategory(
+    data.clientId,
+    data.leadCategory,
+    data.yachtId,
+  );
 
   const result = await withTransaction(async (tx) => {
     const [interest] = await tx
@@ -350,6 +354,7 @@ export async function updateInterest(
     resolvedLeadCategory = (await resolveLeadCategory(
       existing.clientId,
       data.leadCategory,
+      data.yachtId ?? existing.yachtId,
     )) as typeof data.leadCategory;
   }