fix(e2e/varlet): replace bootstrap.mjs with vp run commands

The varlet ecosystem-ci job failed on CI because
`node scripts/bootstrap.mjs` spawns `pnpm build` via tinyexec, and
`pnpm` is not discoverable by Node's spawn on the runner. Bootstrap
silently swallows errors, so internal packages (notably varlet-cli)
were never compiled, leading to ERR_MODULE_NOT_FOUND when the
test:coverage step later invoked varlet-cli.

Replace the bootstrap call with explicit vp run commands that use
vp's bundled runtime. Build phase 1/2 packages via -F filters (-r
would hit the @varlet/cli <-> @varlet/ui devDependency cycle), then
cli/icons/ui-compile sequentially. The cli tsc step reports type
errors against @varlet/ui (still unbuilt) but emits JS output, which
matches upstream bootstrap behavior.

Author: fengmk2

.github/workflows/e2e-test.yml

@@ -317,7 +317,16 @@ jobs:
           - name: varlet
             node-version: 22
             command: |
-              node scripts/bootstrap.mjs
+              # Replace `node scripts/bootstrap.mjs`, which spawns `pnpm build` via
+              # tinyexec and cannot find pnpm on the CI runner (ENOENT). Run each
+              # package's build through vp instead, which uses its bundled runtime.
+              # Skip `-r` to avoid the @varlet/cli <-> @varlet/ui devDependency cycle.
+              vp run -F '@varlet/shared' -F '@varlet/touch-emulator' -F '@varlet/preset-unocss' -F '@varlet/preset-tailwindcss' -F '@varlet/import-resolver' -F '@varlet/use' -F '@varlet/vite-plugins' build
+              # tsc reports type errors against @varlet/ui (which isn't compiled yet)
+              # but still emits JS output — matches upstream bootstrap behavior.
+              vp run @varlet/cli#build || true
+              vp run @varlet/icons#build
+              vp run @varlet/ui#compile
               vp run lint
               vp run test:coverage
         exclude: