Initial commit: Port Nimara CRM (Layers 0-4)

Full CRM rebuild with Next.js 15, TypeScript, Tailwind, Drizzle ORM,
PostgreSQL, Redis, BullMQ, MinIO, and Socket.io. Includes 461 source
files covering clients, berths, interests/pipeline, documents/EOI,
expenses/invoices, email, notifications, dashboard, admin, and
client portal. CI/CD via Gitea Actions with Docker builds.

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

src/app/api/v1/custom-fields/[entityId]/route.ts

@@ -0,0 +1,45 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+import { withAuth } from '@/lib/api/helpers';
+import { errorResponse, NotFoundError } from '@/lib/errors';
+import { setValuesSchema } from '@/lib/validators/custom-fields';
+import { getValues, setValues } from '@/lib/services/custom-fields.service';
+
+export const GET = withAuth(async (_req: NextRequest, ctx, params) => {
+  try {
+    const { entityId } = params;
+    if (!entityId) throw new NotFoundError('Entity');
+
+    const data = await getValues(entityId, ctx.portId);
+    return NextResponse.json({ data });
+  } catch (error) {
+    return errorResponse(error);
+  }
+});
+
+export const PUT = withAuth(async (req: NextRequest, ctx, params) => {
+  try {
+    const { entityId } = params;
+    if (!entityId) throw new NotFoundError('Entity');
+
+    const body = await req.json();
+    const { values } = setValuesSchema.parse(body);
+
+    const result = await setValues(
+      entityId,
+      ctx.portId,
+      ctx.userId,
+      values as Array<{ fieldId: string; value: unknown }>,
+      {
+        userId: ctx.userId,
+        portId: ctx.portId,
+        ipAddress: ctx.ipAddress,
+        userAgent: ctx.userAgent,
+      },
+    );
+
+    return NextResponse.json({ data: result });
+  } catch (error) {
+    return errorResponse(error);
+  }
+});