fix(infra): apply missing migrations, fix Dockerfile.dev ui package reference

packages/db/prisma/migrations/20260409_assignment_overbooking_acknowledged.sql

@@ -0,0 +1 @@
+ALTER TABLE "assignments" ADD COLUMN IF NOT EXISTS "overbookingAcknowledged" BOOLEAN NOT NULL DEFAULT false;

packages/ui/package.json

@@ -0,0 +1,6 @@
+{
+  "name": "@capakraken/ui",
+  "version": "0.0.1",
+  "private": true,
+  "exports": {}
+}