Upgrade to stable typescript 7.

Author: koculu

AGENTS.md

@@ -84,4 +84,4 @@ Do not edit generated files under `packages/ts-page-scripts/src/embed` manually.
 
 When page script source changes require regenerated embeds, update only the source and generator configuration, then tell the user to run the embed script manually.
 
-use tsgo instead of tsc to build typescript files. This repo uses typescript v7.
+Use the stable TypeScript 7 `tsc` command to build and type-check TypeScript files.

FEATURES.md

@@ -256,7 +256,7 @@ This inventory summarizes the package capabilities currently visible in the repo
 
 ## Build and Tooling Scripts
 
-- TypeScript 7 native preview dependency.
+- Stable TypeScript 7 compiler dependency.
 - Yarn 4 workspaces.
 - Vite config.
 - Biome formatting and checking.

README_WRITING_CHECKLIST.md

@@ -227,8 +227,8 @@ Before a section is accepted, answer these questions.
 
 - Do commands exist in root or package `package.json`?
 - Do commands avoid running generated embed scripts as a reader prerequisite?
-- Is `tsgo` used instead of `tsc` for TypeScript package build/typecheck
-  language, except where a package script explicitly uses another tool?
+- Do TypeScript build and type-check commands use the stable TypeScript 7
+  `tsc` executable, except where a package script explicitly uses another tool?
 
 ### Status
 

frontend/IMPLEMENTATION.md

@@ -42,7 +42,7 @@ Browser verification found existing shared-framework accessibility issues:
 These are recorded for a shared-component accessibility pass. The pilot does
 not hide them behind page-specific replacements or runtime patches.
 
-Verification passed: tsgo, the local production build, live button controls and
+Verification passed: TypeScript type checking, the local production build, live button controls and
 form reset, stateful tabs, ModalStore actions, dialog events/focus restoration,
 all dialog sizes and motion directions, nested dialogs, native code copying,
 TOC targets, 320–1920px layout checks, mobile navigation, and the existing
@@ -101,7 +101,7 @@ It does not require changes to generated embeds or framework APIs.
 
 ## Verification plan
 
-Build the site through the project runner and SSG API, check the frontend with `tsgo`, inspect
+Build the site through the project runner and SSG API, check the frontend with `tsc`, inspect
 desktop/mobile browser screenshots, and exercise navigation, copy controls,
 tabs, and reactive examples. Check semantic accessibility, reduced motion,
 JavaScript-disabled rendering, internal links, metadata, and publish output.

frontend/README.md

@@ -155,7 +155,7 @@ these require attention before treating the documentation as release-ready.
 ## Type checking
 
 ```sh
-yarn tsgo -p frontend/tsconfig.json --noEmit
+yarn tsc -p frontend/tsconfig.json --noEmit
 ```
 
 Landing-page verification covered all workbench tabs, arrow/Home/End keys, counter

frontend/docs/component-documentation-plan.md

@@ -31,7 +31,7 @@ The existing Btn, BtnLink, BtnGroup, BtnGroupDropDown, Badge, Tabs and Modal gui
 
 1. Replace the first-collection catalog with grouped, complete links and concise descriptions.
 2. Verify every public registered component has a guide and every registered prop has an API entry.
-3. Format and type-check all sample entry points with Biome and tsgo.
+3. Format and type-check all sample entry points with Biome and TypeScript 7.
 4. Build the complete site; verify all routes, fragments, sample bundles and source tabs.
 5. Exercise interactive samples in a browser, including empty/disabled states and keyboard controls.
 6. Review representative desktop/mobile screenshots in light and dark, then resolve overflow or hierarchy problems.
@@ -44,7 +44,7 @@ Group guides into `actions`, `layout`, `forms`, `data`, `landing`, `site` and `r
 
 - Source inventory and contract review: complete. The catalog covers 67 public components and browser entry points.
 - Guide implementation: complete, with 60 new individual guides and colocated source files.
-- Type checking with tsgo and Biome checks: passed.
+- Type checking with TypeScript and Biome checks: passed.
 - Isolated SSG build after categorization: passed for 76 content pages; all 39 generated script references resolve to files.
 - Browser review: all 60 new guides checked in light and dark at 1440px and 390px. No horizontal page overflow, duplicate IDs, broken local fragments or runtime exceptions were found by the checks.
 - Source fidelity after categorization: 177 sample source tabs across all component guides match their rendered code and associated TypeScript files.

package.json

@@ -2,7 +2,7 @@
   "private": true,
   "name": "purestack-repo",
   "version": "1.1.0",
-  "packageManager": "yarn@4.9.2",
+  "packageManager": "yarn@4.18.1",
   "type": "module",
   "sideEffects": false,
   "workspaces": [
@@ -20,10 +20,10 @@
   "devDependencies": {
     "@biomejs/biome": "^2.4.15",
     "@types/node": "^25.6.2",
-    "@typescript/native-preview": "7.0.0-dev.20260421.2",
     "esbuild": "^0.28.0",
-    "tsdown": "^0.22.0",
+    "tsdown": "0.23.0",
     "tsx": "^4.21.0",
+    "typescript": "7.0.2",
     "vite": "^7.3.1",
     "vite-tsconfig-paths": "^6.1.1",
     "vitest": "^4.0.18"

packages/purestack/package.json

@@ -35,7 +35,7 @@
     "LICENSE"
   ],
   "scripts": {
-    "build": "tsgo",
+    "build": "tsc",
     "lint": "biome check ./src --formatter-enabled=false --write",
     "test": "vitest"
   },

packages/ts-common/package.json

@@ -39,7 +39,7 @@
     "LICENSE"
   ],
   "scripts": {
-    "build": "tsgo",
+    "build": "tsc",
     "lint": "biome check ./src --formatter-enabled=false --write",
     "test": "vitest"
   }

packages/ts-components/package.json

@@ -40,7 +40,7 @@
     "LICENSE"
   ],
   "scripts": {
-    "build": "tsgo",
+    "build": "tsc",
     "regor-components": "yarn tsx ../../scripts/regor-components.ts",
     "lint": "biome check ./src --formatter-enabled=false --write",
     "test": "vitest"