feat: intercept vpr commands in task scripts for in-session synthesis

`vpr` in package.json scripts (e.g. `"ready": "vpr hello && vpr dev"`)
is now expanded to `vp run` and synthesized in-session, avoiding
unnecessary process spawns.

Closes #1176

Author: fengmk2

packages/cli/binding/src/cli.rs

@@ -551,14 +551,19 @@ impl CommandHandler for VitePlusCommandHandler {
         &mut self,
         command: &mut ScriptCommand,
     ) -> anyhow::Result<HandledCommand> {
-        // Intercept "vp" commands in task scripts so that `vp test`, `vp build`, etc.
-        // are synthesized in-session rather than spawning a new CLI process.
+        // Intercept "vp" and "vpr" commands in task scripts so that `vp test`, `vp build`,
+        // `vpr build`, etc. are synthesized in-session rather than spawning a new CLI process.
         let program = command.program.as_str();
-        if program != "vp" {
+        if program != "vp" && program != "vpr" {
             return Ok(HandledCommand::Verbatim);
         }
+        // "vpr <args>" is shorthand for "vp run <args>", so prepend "run" for parsing.
         let cli_args = match CLIArgs::try_parse_from(
-            iter::once("vp").chain(command.args.iter().map(Str::as_str)),
+            iter::once("vp").chain(
+                if program == "vpr" { Some("run") } else { None }
+                    .into_iter()
+                    .chain(command.args.iter().map(Str::as_str)),
+            ),
         ) {
             Ok(args) => args,
             Err(err) if err.kind() == ErrorKind::InvalidSubcommand => {

packages/cli/snap-tests-global/command-run-script-vite-program/package.json

@@ -4,7 +4,10 @@
   "scripts": {
     "dev": "vite",
     "dev-help": "vite -h",
-    "dev-version": "vite --version"
+    "dev-version": "vite --version",
+    "hello": "echo hello from script",
+    "hello-vpr": "vpr hello",
+    "ready": "vpr hello-vpr && vpr dev-version"
   },
   "packageManager": "pnpm@10.19.0"
 }

packages/cli/snap-tests-global/command-run-script-vite-program/snap.txt

@@ -19,3 +19,22 @@ VITE+ - The Unified Toolchain for the Web
 $ vite --version ⊘ cache disabled
 vite --version
 
+
+> vp run hello-vpr # vpr in script should be synthesized in-session
+VITE+ - The Unified Toolchain for the Web
+
+$ echo hello from script ⊘ cache disabled
+hello from script
+
+
+> vp run ready # chained vpr commands should both be synthesized
+VITE+ - The Unified Toolchain for the Web
+
+$ echo hello from script ⊘ cache disabled
+hello from script
+
+$ vite --version ⊘ cache disabled
+vite --version
+
+---
+vp run: 0/2 cache hit (0%). (Run `vp run --last-details` for full details)

packages/cli/snap-tests-global/command-run-script-vite-program/steps.json

@@ -3,6 +3,8 @@
     { "command": "node setup-bin.js", "ignoreOutput": true },
     "vp run dev # should run vite binary, not parse as vp subcommand",
     "vp run dev-help # should run vite -h, not parse as vp subcommand",
-    "vp run dev-version # should run vite --version, not parse as vp subcommand"
+    "vp run dev-version # should run vite --version, not parse as vp subcommand",
+    "vp run hello-vpr # vpr in script should be synthesized in-session",
+    "vp run ready # chained vpr commands should both be synthesized"
   ]
 }