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/hooks/use-sidebar-config.ts

@@ -0,0 +1,10 @@
+import * as React from "react"
+import { SidebarContext, type SidebarContextValue } from "@/contexts/sidebar-context"
+
+export function useSidebarConfig(): SidebarContextValue {
+  const context = React.useContext(SidebarContext)
+  if (!context) {
+    throw new Error("useSidebarConfig must be used within a SidebarConfigProvider")
+  }
+  return context
+}