refactor(platform-api-docs): use ts-morph globbing for file discovery

packages/platform-api-docs/CHANGELOG.md

@@ -9,6 +9,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-- Initial release of the platform-api-docs package ([#8012](https://github.com/MetaMask/core/pull/8012), [#9913](https://github.com/MetaMask/core/pull/9913))
+- Initial release of the platform-api-docs package ([#8012](https://github.com/MetaMask/core/pull/8012), [#9913](https://github.com/MetaMask/core/pull/9913), [#9990](https://github.com/MetaMask/core/pull/9990))
 
 [Unreleased]: https://github.com/MetaMask/core/

packages/platform-api-docs/package.json

@@ -49,7 +49,6 @@
     "@mdx-js/react": "^3.1.1",
     "@metamask/utils": "^11.11.0",
     "execa": "^5.0.0",
-    "glob": "^13.0.6",
     "npm-which": "^3.0.1",
     "prism-react-renderer": "^2.4.1",
     "react": "^19.0.0",

packages/platform-api-docs/src/extraction.test.ts

@@ -2,10 +2,8 @@ import { createSandbox } from '@metamask/utils/node';
 import * as fs from 'node:fs';
 import * as path from 'node:path';
 
-import {
-  createExtractionProject,
-  extractFromSourceFile,
-} from './extraction.js';
+import { extractFromSourceFile } from './extraction.js';
+import { createProject } from './ts-project.js';
 import { MessengerCapabilityPacket } from './types.js';
 
 const { withinSandbox } = createSandbox('platform-api-docs/extraction');
@@ -36,7 +34,7 @@ function withMessenger(
  * run `extractFromSourceFile` on it.
  *
  * This mirrors the logic that callers of the library use in production (via
- * `createExtractionProject` + `extractFromSourceFile`) without going through
+ * `createProject` + `extractFromSourceFile`) without going through
  * the now-removed `extractFromFile` convenience wrapper.
  *
  * @param filePath - Absolute path of the file to write and extract from.
@@ -52,7 +50,7 @@ async function extractFromWrittenFile(
 ): Promise<MessengerCapabilityPacket[]> {
   await fs.promises.writeFile(filePath, content);
   const parentDir = path.dirname(filePath);
-  const project = createExtractionProject();
+  const project = createProject();
   project.addSourceFilesAtPaths([
     path.join(parentDir, '**/*.ts'),
     path.join(parentDir, '**/*.d.cts'),

packages/platform-api-docs/src/extraction.ts

@@ -13,7 +13,7 @@ import type {
   TypeNode,
   TypeReferenceNode,
 } from 'ts-morph';
-import { Node as NodeGuards, Project, ts } from 'ts-morph';
+import { Node as NodeGuards } from 'ts-morph';
 
 import type {
   MessengerCapabilityPacket,
@@ -929,32 +929,6 @@ function tryToExtractFromCapabilityTypeConstructor(
 // Public entry points
 // ---------------------------------------------------------------------------
 
-/**
- * Create a ts-morph Project configured for messenger-docs extraction. The
- * caller should add every source file that may be referenced (directly or
- * transitively) before calling {@link extractFromSourceFile}, so the type
- * checker can resolve cross-file references.
- *
- * @returns A new ts-morph Project.
- */
-export function createExtractionProject(): Project {
-  return new Project({
-    compilerOptions: {
-      allowJs: false,
-      noEmit: true,
-      // Match the project's permissive defaults — we just need symbol
-      // resolution, not full typechecking.
-      strict: false,
-      skipLibCheck: true,
-      // Explicit module options so cross-file symbol resolution works
-      // regardless of the host process's tsconfig.
-      target: ts.ScriptTarget.ESNext,
-      module: ts.ModuleKind.ESNext,
-      moduleResolution: ts.ModuleResolutionKind.NodeJs,
-    },
-  });
-}
-
 /**
  * Extract information (action/event type string, handler/payload arguments and
  * return type, etc.) about every messenger action or event type which is