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/lib/validators/custom-fields.ts

@@ -0,0 +1,53 @@
+import { z } from 'zod';
+
+const CUSTOM_FIELD_TYPES = ['text', 'number', 'date', 'boolean', 'select'] as const;
+const CUSTOM_FIELD_ENTITIES = ['client', 'interest', 'berth'] as const;
+
+export const createFieldSchema = z
+  .object({
+    entityType: z.enum(CUSTOM_FIELD_ENTITIES),
+    fieldName: z
+      .string()
+      .min(1)
+      .max(50)
+      .regex(/^[a-z_][a-z0-9_]*$/, 'Must be snake_case'),
+    fieldLabel: z.string().min(1).max(100),
+    fieldType: z.enum(CUSTOM_FIELD_TYPES),
+    selectOptions: z
+      .array(z.string().min(1).max(100))
+      .min(1)
+      .max(50)
+      .optional(),
+    isRequired: z.boolean().default(false),
+    sortOrder: z.number().int().min(0).default(0),
+  })
+  .refine(
+    (data) =>
+      data.fieldType !== 'select' ||
+      (data.selectOptions && data.selectOptions.length > 0),
+    {
+      message: 'Select fields must have at least one option',
+      path: ['selectOptions'],
+    },
+  );
+
+export const updateFieldSchema = z.object({
+  fieldLabel: z.string().min(1).max(100).optional(),
+  selectOptions: z.array(z.string().min(1).max(100)).optional(),
+  isRequired: z.boolean().optional(),
+  sortOrder: z.number().int().min(0).optional(),
+  // fieldType intentionally omitted — cannot be changed after creation
+});
+
+export const setValuesSchema = z.object({
+  values: z.array(
+    z.object({
+      fieldId: z.string().uuid(),
+      value: z.unknown(),
+    }),
+  ),
+});
+
+export type CreateFieldInput = z.infer<typeof createFieldSchema>;
+export type UpdateFieldInput = z.infer<typeof updateFieldSchema>;
+export type SetValuesInput = z.infer<typeof setValuesSchema>;