Add object utilities and comprehensive text helpers

Add typed object selection, transformation, clone, merge, freeze, flatten and diff helpers. Add text normalization, truncation, search, masking, parsing, wrapping and formatting utilities. Document behavior and update bundle budgets.

AGENTS.md

@@ -6,6 +6,10 @@ Gitea at https://git.warky.dev; workflows belong in `.gitea/workflows/`.
 
 ## Development checks
 
+`pnpm-workspace.yaml` explicitly allows esbuild install scripts through
+`allowBuilds` for pnpm versions that require dependency build approval. Keep
+approvals scoped to the dependencies that need them.
+
 Run `pnpm test` for the test suite and `pnpm check:bundle` for a production build
 with bundle checks. Builds fail on direct eval warnings. The bundle check measures
 raw and gzip bytes for every emitted JavaScript file against