add changeset, add build tests

Author: schiller-manuel

.changeset/funny-seahorses-marry.md

@@ -0,0 +1,7 @@
+---
+'@tanstack/react-start': patch
+'@tanstack/solid-start': patch
+'@tanstack/vue-start': patch
+---
+
+Fix the `server-entry` package export types path so published packages include the expected declaration files, and add build-time package validation to catch similar export issues during CI.

packages/react-start/package.json

@@ -26,7 +26,7 @@
   "scripts": {
     "clean": "rimraf ./dist && rimraf ./coverage",
     "test": "pnpm test:build",
-    "test:build": "exit 0; vitest",
+    "test:build": "publint --strict && attw --ignore-rules no-resolution --pack .",
     "build": "vite build && vite build -c vite.config.server-entry.ts"
   },
   "type": "module",

packages/solid-start/package.json

@@ -26,7 +26,7 @@
   "scripts": {
     "clean": "rimraf ./dist && rimraf ./coverage",
     "test": "pnpm test:build",
-    "test:build": "exit 0; vitest",
+    "test:build": "publint --strict && attw --ignore-rules no-resolution --pack .",
     "build": "vite build && vite build -c vite.config.server-entry.ts"
   },
   "type": "module",

packages/vue-start/package.json

@@ -26,7 +26,7 @@
   "scripts": {
     "clean": "rimraf ./dist && rimraf ./coverage",
     "test": "pnpm test:build",
-    "test:build": "exit 0; vitest",
+    "test:build": "publint --strict && attw --ignore-rules no-resolution --pack .",
     "build": "vite build && vite build -c vite.config.server-entry.ts"
   },
   "type": "module",