feat(codegen-ts): export template-codegen public API

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LuZWKnWzYGVnESijL7uuky

Author: dmealing

server/typescript/packages/codegen-ts/src/index.ts

@@ -7,7 +7,27 @@ export { runGen } from "./runner.js";
 export type { RunGenOpts, RunGenResult } from "./runner.js";
 
 export type { Generator, GenContext, EmittedFile, GeneratorFactory } from "./generator.js";
-export { perEntity, oncePerRun } from "./generator.js";
+export { perEntity, perPackage, perModel, oncePerRun } from "./generator.js";
+
+// SP-1 declarative Mustache template-codegen — scope walks, neutral data dict,
+// output-pattern, and the JSON template-spec the CLI ports reuse.
+export { expandOutputPattern } from "./template-codegen/output-pattern.js";
+export {
+  buildEntityTemplateData,
+  buildPackageTemplateData,
+  buildModelTemplateData,
+} from "./template-codegen/template-data.js";
+export type {
+  FieldTemplateData,
+  EntityTemplateData,
+  IdentityTemplateData,
+  RelationshipTemplateData,
+  PackageTemplateData,
+  ModelTemplateData,
+} from "./template-codegen/template-data.js";
+export { parseTemplateSpec, templateSpecToGenerators } from "./template-codegen/template-spec.js";
+export type { TemplateSpecEntry, TemplateSpecFile } from "./template-codegen/template-spec.js";
+export type { TemplateScope } from "./generators/template-generator.js";
 
 // ADR-0021 D3 — stable-name generator registry + discoverability surface.
 export {

server/typescript/packages/codegen-ts/test/template-codegen/exports.test.ts

@@ -0,0 +1,15 @@
+import { describe, test, expect } from "bun:test";
+import * as api from "../../src/index.js";
+
+describe("public exports", () => {
+  test("scope helpers + template-codegen API are exported", () => {
+    for (const name of [
+      "perEntity", "perPackage", "perModel", "oncePerRun",
+      "expandOutputPattern",
+      "buildEntityTemplateData", "buildPackageTemplateData", "buildModelTemplateData",
+      "parseTemplateSpec", "templateSpecToGenerators",
+    ]) {
+      expect(typeof (api as Record<string, unknown>)[name]).toBe("function");
+    }
+  });
+});