feat(sdk): add developer project tooling

docs(rfc): propose SDK developer project tooling

feat: rename / docs

ci: fix windows gates

docs: revert

packages/sdk/create-sdk/tsdown.config.ts

@@ -0,0 +1,14 @@
+import { defineConfig } from 'tsdown'
+
+/** Bundle the library and create bin, then mirror package-owned terminal templates. */
+export default defineConfig({
+  entry: ['lib/types/index.js', 'lib/types/bin.js'],
+  outDir: 'lib',
+  format: ['esm'],
+  platform: 'node',
+  target: 'es2024',
+  fixedExtension: false,
+  dts: false,
+  clean: false,
+  copy: [{ from: 'src/templates/assets/*', to: 'lib/assets' }],
+})