feat: Add GatherManager + AutoDoors plugin config modules

- GatherManager: 2-tab editor (Resource Rates with 1x-10x presets,
  Advanced with Pickup/Quarry/Excavator/Survey modifiers), 9 resource
  types with slider+number inputs, CRUD + deploy + import via NATS
- AutoDoors: Global settings (delay sliders, 6 toggles), 7 door type
  toggles, permission group overrides table, CRUD + deploy + import
- DB: migrations 015 (gather_configs) + 018 (autodoors_configs)
- Backend: GatherModule + AutoDoorsModule registered in app.module.ts
- Frontend: Pinia stores, Vue views, router routes, sidebar nav items
- Icons: Pickaxe (gather), DoorOpen (autodoors)
- All type checks pass: tsc + vue-tsc zero errors

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

frontend/src/router/index.ts

@@ -120,6 +120,16 @@ const panelRoutes: RouteRecordRaw[] = [
         name: 'teleport-config',
         component: () => import('@/views/admin/TeleportConfigView.vue'),
       },
+      {
+        path: 'gather-manager',
+        name: 'gather-manager',
+        component: () => import('@/views/admin/GatherManagerView.vue'),
+      },
+      {
+        path: 'autodoors',
+        name: 'autodoors',
+        component: () => import('@/views/admin/AutoDoorsView.vue'),
+      },
       {
         path: 'wipes',
         name: 'wipes',