[codex] consolidate package tests into features

[samchon]

Summary

• Move package-local Vitest coverage for @autobe/estimate and @autobe/ui into test/src/features DynamicExecutor tests.
• Remove package-level Vitest configs/scripts and drop the now-unused Vitest dependencies from the lockfile.
• Route the root pnpm test command through the central test package so CI executes the consolidated feature tests.

Validation

• pnpm --filter=./test build
• pnpm --filter=./test start -- --include estimate test_ui

Note: full pnpm run build was started locally, but the terminal run was interrupted before completion.