feat: admin user creation, Vite migration, dialog fix, pl24 integration

- Add POST /admin/users endpoint with password hashing and role support
- Add user creation dialog to admin users page
- Migrate web from Next.js to Vite + TanStack Router
- Fix Dialog component positioning for Tailwind CSS v4
- Add @source directive for @sase/ui package scanning
- Add pl24 integration parsers and vehicle decode flow
- Backup old Next.js app to apps/web-nj

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

apps/api/src/database/schema/core.ts

@@ -251,6 +251,8 @@ export const categories = pgTable(
     nameOriginal: varchar("name_original", { length: 500 }),
     parentId: uuid("parent_id"),
     externalId: varchar("external_id", { length: 100 }),
+    linkPath: text("link_path"),
+    linkWid: varchar("link_wid", { length: 100 }),
     source: varchar("source", { length: 20 }).default("pl24").notNull(),
     createdAt: timestamp("created_at", { withTimezone: true }).defaultNow().notNull(),
   },