Use the repository-installed TypeScript compiler in CI tests and restore docker/setup-buildx-action so the container workflow can use the GitHub Actions cache backend.
Drop the unused thinapps-shared submodule entry and simplify VS Code launch profiles to the standalone crawl, search, and serp entrypoints used by the open-source version.
Replace private shared dependencies with local implementations, keep the standalone crawl/search/serp build working, and add CI, GHCR image publishing, Dependabot updates, and green-only auto-merge automation.