init: lab project bootstrapped from isletmem-kovakcrm

- CRM domain modules removed (customers, services, software, calendar, tasks, invoices, leads, finance, etc.)
- DLS branding: package name=lab, logo wordmark, sidebar nav, header CTA
- Tenant layer extended with kind dimension (lab|clinic) + requireTenantKind helper
- Schema rewritten for DLS domain: jobs, job_files, job_status_history, prosthetics, connections, finance_entries, notifications
- Onboarding form: clinic/lab account-type selection + auto-generated memberNumber
- Placeholder routes for jobs/{inbound,outbound,new}, products, finance, connections
- PDF spec + spec.md under belgeler/
- db: lab database + 13 collections + indexes + storage bucket (job-files) provisioned via Appwrite MCP

Ref: belgeler/dls-ui-tasarim.pdf

src/lib/format.ts

@@ -0,0 +1,43 @@
+export function formatTRY(amount: number): string {
+  return new Intl.NumberFormat("tr-TR", {
+    style: "currency",
+    currency: "TRY",
+    minimumFractionDigits: 2,
+    maximumFractionDigits: 2,
+  }).format(amount);
+}
+
+export function formatCurrency(amount: number, currency = "TRY"): string {
+  return new Intl.NumberFormat("tr-TR", {
+    style: "currency",
+    currency,
+    minimumFractionDigits: 2,
+    maximumFractionDigits: 2,
+  }).format(amount);
+}
+
+export function formatDate(iso: string | undefined | null): string {
+  if (!iso) return "—";
+  return new Date(iso).toLocaleDateString("tr-TR", {
+    day: "2-digit",
+    month: "short",
+    year: "numeric",
+  });
+}
+
+export function formatDateTime(iso: string | undefined | null): string {
+  if (!iso) return "—";
+  return new Date(iso).toLocaleString("tr-TR", {
+    day: "2-digit",
+    month: "short",
+    year: "numeric",
+    hour: "2-digit",
+    minute: "2-digit",
+  });
+}
+
+export const BILLING_PERIOD_LABEL: Record<string, string> = {
+  monthly: "Aylık",
+  yearly: "Yıllık",
+  onetime: "Tek seferlik",
+};