feat(cli): bring all package-manager commands to the local CLI (#1495)

Extract the package-manager CLI surface (clap definitions + dispatch
glue) into a new shared crate `vite_pm_cli` consumed by both the global
Rust binary and the local NAPI binding, so `npx vp add <pkg>`,
`vp remove`, `vp update`, `vp dedupe`, `vp dlx`, `vp pm publish`, etc.
all work identically on the local CLI.

Previously the local CLI only knew the `install` shortcut; every other
PM command fell through to clap's "unknown subcommand" error. The core
PM logic in `vite_install` was already a binding dependency — only the
parser and dispatcher were missing. Sharing the clap surface guarantees
the two CLIs cannot drift on flag names, aliases, or behavior.

The global CLI keeps a thin wrapper that intercepts `--global` for
vite-plus-managed installs (`commands::env::global_install`) and
ensures the managed Node runtime is on PATH before delegating; the
local CLI dispatches PM commands directly through `vite_pm_cli` and
bypasses the vite-task scheduler since PM operations do not need
caching.

Snap-test coverage: one representative pnpm10 fixture per command
mirrored into `packages/cli/snap-tests/`. Pre-existing snap updates
reflect the now-consistent behavior — `vp install --help` prints
clap's help instead of forwarding to the underlying PM, and PM
commands inside `vp run` correctly show "cache disabled".

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Author: fengmk2

Cargo.lock

@@ -197,6 +197,7 @@ vite_js_runtime = { path = "crates/vite_js_runtime" }
 vite_glob = { git = "https://github.com/voidzero-dev/vite-task.git", rev = "d1b8cdae8b6df5eab8b9f1143ceb4fb13933a5ef" }
 vite_install = { path = "crates/vite_install" }
 vite_migration = { path = "crates/vite_migration" }
+vite_pm_cli = { path = "crates/vite_pm_cli" }
 vite_setup = { path = "crates/vite_setup" }
 vite_shared = { path = "crates/vite_shared" }
 vite_static_config = { path = "crates/vite_static_config" }

Cargo.toml

@@ -28,6 +28,7 @@ crossterm = { workspace = true }
 vite_error = { workspace = true }
 vite_install = { workspace = true }
 vite_js_runtime = { workspace = true }
+vite_pm_cli = { workspace = true }
 vite_path = { workspace = true }
 vite_command = { workspace = true }
 vite_setup = { workspace = true }