- Remove vestigial experimentalDecorators/emitDecoratorMetadata from all
package tsconfigs (no actual decorators in source — flags were from
pi-mono vendor copy)
- Add @typescript/native-preview for 8-10x faster type checking (measured
4.6x on this repo: tsc 6.5s vs tsgo 1.4s)
- Fix tsconfig.extensions.json: remove baseUrl (removed in tsgo/TS7) and
use relative paths in paths mappings — compatible with both tsc and tsgo
- Add typecheck/typecheck:extensions scripts using tsgo
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>