Add dynamic apply wizard customization with admin settings UI

- Create wizard config types, utilities, and defaults (wizard-config.ts)
- Add admin apply settings page with drag-and-drop step ordering, dropdown
  option management, feature toggles, welcome message customization, and
  custom field builder with select/multiselect options editor
- Build dynamic apply wizard component with animated step transitions,
  mobile-first responsive design, and config-driven form validation
- Update step components to accept dynamic config (categories, ocean issues,
  field visibility, feature flags)
- Replace hardcoded enum validation with string-based validation for
  admin-configurable dropdown values, with safe enum casting at storage layer
- Add wizard template system (model, router, admin UI) with built-in
  MOPC Classic preset
- Add program wizard config CRUD procedures to program router
- Update application router getConfig to return wizardConfig, submit handler
  to store custom field data in metadataJson
- Add edition-based apply page, project pool page, and supporting routers
- Fix CSS (invalid sm:fixed-none), Enter key handler (skip textarea),
  safe area insets for notched phones, buildStepsArray field visibility

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/server/routers/_app.ts

@@ -33,6 +33,8 @@ import { notificationRouter } from './notification'
 import { roundTemplateRouter } from './roundTemplate'
 import { messageRouter } from './message'
 import { webhookRouter } from './webhook'
+import { projectPoolRouter } from './project-pool'
+import { wizardTemplateRouter } from './wizard-template'
 
 /**
  * Root tRPC router that combines all domain routers
@@ -72,6 +74,8 @@ export const appRouter = router({
   roundTemplate: roundTemplateRouter,
   message: messageRouter,
   webhook: webhookRouter,
+  projectPool: projectPoolRouter,
+  wizardTemplate: wizardTemplateRouter,
 })
 
 export type AppRouter = typeof appRouter