feat(wave3): @mosaic/prdy TypeScript PRD wizard (#7)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

packages/prdy/src/index.ts

@@ -0,0 +1,20 @@
+export {
+  createPrd,
+  loadPrd,
+  savePrd,
+  listPrds,
+} from './prd.js';
+export { runPrdWizard } from './wizard.js';
+export { buildPrdyCli, runPrdyCli } from './cli.js';
+export {
+  BUILTIN_PRD_TEMPLATES,
+  resolveTemplate,
+} from './templates.js';
+export type {
+  PrdStatus,
+  PrdTemplate,
+  PrdTemplateSection,
+  PrdSection,
+  PrdDocument,
+  CreatePrdOptions,
+} from './types.js';