node_runtime: Respect npm release-age filters for managed npm installs (#56957)

Zed-managed npm installers were resolving a concrete latest version with
`npm info` and then installing `package@version`. That is brittle when
users
configure npm release-age filtering via `before` or `min-release-age`:
npm's
installer applies those rules during resolution, but our pinned install
target
could disagree with it, and therefore fail to install.

This changes managed npm installs to install `package@latest` and let
npm apply
its own resolver and user config. The local latest-version lookup
remains as a
best-effort cache freshness check, not as the exact install target.

Exact extension API installs remain unchanged because extensions
explicitly
request a package and version. If we want to revisit that we can.

Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

Closes #53611

Release Notes:

- Fixed npm-backed tool installs to better respect npm release-age
filters.

crates/languages/src/python.rs

@@ -786,7 +786,7 @@ impl LspInstaller for PyrightLspAdapter {
 
     fn fetch_server_binary(
         &self,
-        latest_version: Self::BinaryVersion,
+        _latest_version: Self::BinaryVersion,
         container_dir: PathBuf,
         delegate: &Arc<dyn LspAdapterDelegate>,
     ) -> impl Send + Future<Output = Result<LanguageServerBinary>> + use<> {
@@ -795,13 +795,8 @@ impl LspInstaller for PyrightLspAdapter {
 
         async move {
             let server_path = container_dir.join(Self::SERVER_PATH);
-            let latest_version = latest_version.to_string();
-
-            node.npm_install_packages(
-                &container_dir,
-                &[(Self::SERVER_NAME.as_ref(), latest_version.as_str())],
-            )
-            .await?;
+            node.npm_install_latest_packages(&container_dir, &[Self::SERVER_NAME.as_ref()])
+                .await?;
 
             let env = delegate.shell_env().await;
             Ok(LanguageServerBinary {
@@ -2252,7 +2247,7 @@ impl LspInstaller for BasedPyrightLspAdapter {
 
     fn fetch_server_binary(
         &self,
-        latest_version: Self::BinaryVersion,
+        _latest_version: Self::BinaryVersion,
         container_dir: PathBuf,
         delegate: &Arc<dyn LspAdapterDelegate>,
     ) -> impl Send + Future<Output = Result<LanguageServerBinary>> + use<> {
@@ -2261,13 +2256,8 @@ impl LspInstaller for BasedPyrightLspAdapter {
 
         async move {
             let server_path = container_dir.join(Self::SERVER_PATH);
-            let latest_version = latest_version.to_string();
-
-            node.npm_install_packages(
-                &container_dir,
-                &[(Self::SERVER_NAME.as_ref(), latest_version.as_str())],
-            )
-            .await?;
+            node.npm_install_latest_packages(&container_dir, &[Self::SERVER_NAME.as_ref()])
+                .await?;
 
             let env = delegate.shell_env().await;
             Ok(LanguageServerBinary {