chore(deps): TypeScript major version migration (pathfinder)

generators/package.json

@@ -28,6 +28,7 @@
   "devDependencies": {
     "@types/lodash": "4.17.21",
     "@types/mustache": "4.2.6",
-    "@types/prompts": "2.4.9"
+    "@types/prompts": "2.4.9",
+    "typescript": "6.0.3"
   }
 }

package.json

@@ -66,7 +66,7 @@
     "prettier": "3.7.4",
     "prettier-jest": "npm:prettier@3.7.4",
     "tsc-files": "1.1.4",
-    "typescript": "5.9.3"
+    "typescript": "7.0.2"
   },
   "packageManager": "pnpm@11.10.0"
 }

pnpm-workspace.yaml

@@ -23,3 +23,32 @@ allowBuilds:
   esbuild: false
   sharp: false
   unrs-resolver: false
+
+# TypeScript 7.0 dropped the classic JS "Strada" Program/type-checker API that
+# ships as the `typescript` package's public surface (only version metadata is
+# exported now). `typescript-eslint` v5 (pulled in transitively via
+# @commercetools-frontend/eslint-config-mc-app) still calls into that classic
+# API (e.g. `ts.TypeFlags`) for type-aware lint rules, so it must resolve an
+# older, API-compatible TypeScript instead of the repo's TS 7 devDependency.
+# 6.0.3 is the last TypeScript release built on the classic JS compiler.
+# `typescript` is declared as an *optional peer* (`typescript: '*'`) on these
+# packages, so a plain `overrides` entry doesn't pin it (peers are resolved
+# from the nearest matching instance in the graph, not from overrides).
+# `packageExtensions` promotes it to a hard dependency instead, which pnpm
+# always honors.
+packageExtensions:
+  '@typescript-eslint/eslint-plugin@5.62.0':
+    dependencies:
+      typescript: '6.0.3'
+  '@typescript-eslint/parser@5.62.0':
+    dependencies:
+      typescript: '6.0.3'
+  '@typescript-eslint/type-utils@5.62.0':
+    dependencies:
+      typescript: '6.0.3'
+  '@typescript-eslint/typescript-estree@5.62.0':
+    dependencies:
+      typescript: '6.0.3'
+  '@typescript-eslint/utils@5.62.0':
+    dependencies:
+      typescript: '6.0.3'

standalone/package.json

@@ -140,5 +140,8 @@
     "@types/lodash": "4.17.21",
     "lodash": "4.17.23",
     "omit-deep": "0.3.0"
+  },
+  "devDependencies": {
+    "typescript": "6.0.3"
   }
 }

standalone/src/models/cart/cart/custom-line-item/custom-line-item-draft/builders.spec.ts

@@ -100,7 +100,7 @@ describe('CustomLineItemDraft compatibility builders', () => {
   it('builds a GraphQL model', () => {
     const customLineItemDraftGraphql = CustomLineItemDraft.random()
       .custom(CustomFieldBooleanType.random())
-      .buildGraphql();
+      .buildGraphql<TCustomLineItemDraftGraphql>();
     validateGraphqlFields(customLineItemDraftGraphql);
   });
 });

tsconfig.json

@@ -11,6 +11,10 @@
     "isolatedModules": true,
     "resolveJsonModule": true,
     "allowJs": false,
+    // TypeScript 6.0+ defaults `types` to `[]` instead of auto-discovering every
+    // package under node_modules/@types. Our spec files rely on Jest's ambient
+    // globals (describe/it/expect) and @types/node globals, so list them explicitly.
+    "types": ["jest", "node"],
     "paths": {
       "@/core": ["./standalone/src/core"],
       "@/core/test-utils": ["./standalone/src/core/test-utils"],