fix(install): suppress banner/tips and improve post-install messages (#768)

## Summary

- Suppress VITE+ header banner when `--silent` is passed to `vp install`
- Suppress tips (e.g. "Available short aliases") when `CI` env var is set, since tips are for interactive users
- Replace `vp dev` with `vp migrate` in post-install "Get started" section (dev is a project command, not available after fresh global install)
- Change "Run vp help for more information" to "Run vp help to see available commands"

## Test plan

- [x] `cargo test -p vite_global_cli` — 294 passed
- [x] Verify snap test diffs are correct (banner lines removed from `--silent` output)
- [x] CI: install.ps1 on PowerShell 5.1 no longer leaks tips/banner
- [x] CI: [install.sh](http://install.sh) no longer leaks tips/banner

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Author: fengmk2

crates/vite_global_cli/src/cli.rs

@@ -1538,7 +1538,7 @@ pub async fn run_command_with_options(
             packages,
             pass_through_args,
         } => {
-            print_runtime_header(render_options.show_header);
+            print_runtime_header(render_options.show_header && !silent);
             // If packages are provided, redirect to Add command
             if let Some(pkgs) = packages
                 && !pkgs.is_empty()

crates/vite_global_cli/src/tips/mod.rs

@@ -79,7 +79,7 @@ fn all() -> &'static [&'static dyn Tip] {
 /// - The `VITE_PLUS_CLI_TEST` env var is set (test mode)
 /// - No tips match the given context
 pub fn get_tip(context: &TipContext) -> Option<&'static str> {
-    if std::env::var_os("VITE_PLUS_CLI_TEST").is_some() {
+    if std::env::var_os("VITE_PLUS_CLI_TEST").is_some() || std::env::var_os("CI").is_some() {
         return None;
     }
 

packages/cli/install.ps1

@@ -390,7 +390,7 @@ exec "`$VITE_PLUS_HOME/current/bin/vp.exe" "`$@"
     Write-Host "    ${BRIGHT_BLUE}vp create${NC}       Create a new project"
     Write-Host "    ${BRIGHT_BLUE}vp env${NC}          Manage Node.js versions"
     Write-Host "    ${BRIGHT_BLUE}vp install${NC}      Install dependencies"
-    Write-Host "    ${BRIGHT_BLUE}vp dev${NC}          Start dev server"
+    Write-Host "    ${BRIGHT_BLUE}vp migrate${NC}      Migrate to Vite+"
 
     # Show Node.js manager status
     if ($nodeManagerResult -eq "true" -or $nodeManagerResult -eq "already") {
@@ -400,7 +400,7 @@ exec "`$VITE_PLUS_HOME/current/bin/vp.exe" "`$@"
     }
 
     Write-Host ""
-    Write-Host "  Run ${BRIGHT_BLUE}vp help${NC} for more information."
+    Write-Host "  Run ${BRIGHT_BLUE}vp help${NC} to see available commands."
 
     # Show note if PATH was updated
     if ($pathResult -eq "true") {

packages/cli/install.sh

@@ -613,7 +613,7 @@ WRAPPER_EOF
   echo -e "    ${BRIGHT_BLUE}vp create${NC}       Create a new project"
   echo -e "    ${BRIGHT_BLUE}vp env${NC}          Manage Node.js versions"
   echo -e "    ${BRIGHT_BLUE}vp install${NC}      Install dependencies"
-  echo -e "    ${BRIGHT_BLUE}vp dev${NC}          Start dev server"
+  echo -e "    ${BRIGHT_BLUE}vp migrate${NC}      Migrate to Vite+"
 
   if [ "$NODE_MANAGER_ENABLED" = "true" ] || [ "$NODE_MANAGER_ENABLED" = "already" ]; then
     echo ""
@@ -622,7 +622,7 @@ WRAPPER_EOF
   fi
 
   echo ""
-  echo -e "  Run ${BRIGHT_BLUE}vp help${NC} for more information."
+  echo -e "  Run ${BRIGHT_BLUE}vp help${NC} to see available commands."
 
   # Show restart note if PATH was added to shell config
   if [ "$PATH_CONFIGURED" = "true" ] && [ -n "$SHELL_CONFIG_UPDATED" ]; then

packages/cli/snap-tests-global/command-install-auto-create-package-json/snap.txt

@@ -2,8 +2,6 @@
 no package.json
 
 > vp install --silent && cat package.json # should auto-create package.json and install
-VITE+ - The Unified Toolchain for the Web
-
 {
   "type": "module",
   "packageManager": "pnpm@<semver>"

packages/cli/snap-tests-global/command-install-bug-31/snap.txt

@@ -1,22 +1,11 @@
 > vp install --no-frozen-lockfile --silent # install dependencies work
-VITE+ - The Unified Toolchain for the Web
-
-
 > mkdir -p packages/sub-project && echo '{"name": "sub-project", "dependencies": { "testnpm2": "1.0.0" }}' > packages/sub-project/package.json # create sub project and package.json
 > vp install --no-frozen-lockfile --silent # install again should work and without cache
-VITE+ - The Unified Toolchain for the Web
-
-
 > ls packages/sub-project/node_modules/testnpm2/package.json # check testnpm2 is installed
 packages/sub-project/node_modules/testnpm2/package.json
 
 > mkdir -p others/other && echo '{"name": "other", "dependencies": { "testnpm2": "1.0.0" }}' > others/other/package.json # create non workspace project
 > vp install --no-frozen-lockfile --silent # should install cache hit
-VITE+ - The Unified Toolchain for the Web
-
-
 > test -d others/other/node_modules/testnpm2 && echo 'Error: directory exists.' >&2 && exit 1 || true # check testnpm2 is not installed
 > rm -rf packages/sub-project # remove sub project
-> vp install --no-frozen-lockfile --silent | sed -E 's|packages.*|packages*|' # should install again without cache
-VITE+ - The Unified Toolchain for the Web
-
+> vp install --no-frozen-lockfile --silent | sed -E 's|packages.*|packages*|' # should install again without cache