[KyleAMathews]

Update Studio to the latest published TanStack DB packages. This dependency update needs no application code changes.

• Update @tanstack/react-db from 0.5.7 to 0.5.11.
• Update @tanstack/query-db-collection from 1.4.2 to 1.4.7.
• Resolve both packages to @tanstack/db version 0.15.1 and @tanstack/db-ivm version 0.2.0.
• Remove the unused sorted-btree dependency from the lockfile.

Validation passed:

• npm run build
• npm run typecheck
• npm run test:ui -- --maxWorkers=2 (97 tests across 12 files)
• git diff --check