cache current binary in downloads folder as well (#1910)

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> [!IMPORTANT]
> This PR adds caching for the current bundled CLI, introduces a
`syncExtensionToGeneratorVersion` setting, and removes the
`restartTSServerOnSave` option.
> 
>   - **Behavior**:
> - Cache current bundled CLI in downloads folder in `cliDownloader.ts`
to preserve previous version's CLI on auto-updates.
> - Add `syncExtensionToGeneratorVersion` option to `bamlConfig.ts` in
`playground-common`, `language-server`, and `language-server-client`.
> - Remove `restartTSServerOnSave` option from `package.json` and
related files.
>   - **Configuration**:
> - Add `syncExtensionToGeneratorVersion` setting to `bamlConfigSchema`
in `bamlConfig.ts` files.
> - Update `package.json` to include `syncExtensionToGeneratorVersion`
setting.
>   - **Version Handling**:
> - Update `index.ts` to handle `baml_src_generator_version`
notifications and sync versions based on
`syncExtensionToGeneratorVersion` setting.
> - Skip version update on Windows when
`syncExtensionToGeneratorVersion` is set to `auto`.
> 
> <sup>This description was created by </sup>[<img alt="Ellipsis"
src="https://img.shields.io/badge/Ellipsis-blue?color=175173">](https://www.ellipsis.dev?ref=BoundaryML%2Fbaml&utm_source=github&utm_medium=referral)<sup>
for 006652a. You can
[customize](https://app.ellipsis.dev/BoundaryML/settings/summaries) this
summary. It will automatically update as commits are pushed.</sup>


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Author: aaronvg

fern/03-reference/vscode-ext/restartTSServerOnSave.mdx

@@ -0,0 +1,19 @@
+| Type | Default Value |
+| --- | --- |
+| `"auto" \| "never" \| "always"` | "auto" |
+
+
+- `auto`: Sync the extension version to match the generator version when a mismatch is detected. This will make the extension download the correct version of the baml-cli to generate the client code -- preventing issues with mismatched versions.
+- `never`: Never sync the extension version to match the generator version
+- `always`: Always attempt to sync the extension version to match the generator version.
+
+
+Note that on Windows platforms, the extension-sync feature is disabled when the `syncExtensionToGeneratorVersion` setting is set to `auto`.
+
+## Usage
+
+```json
+{
+  "baml.syncExtensionToGeneratorVersion": "auto",
+}
+```

fern/03-reference/vscode-ext/syncExtensionToGeneratorVersion.mdx

@@ -814,10 +814,10 @@ navigation:
             path: 03-reference/vscode-ext/clipath.mdx
           - page: baml.generateCodeOnSave
             path: 03-reference/vscode-ext/generateCodeOnSave.mdx
-          - page: baml.restartTSServerOnSave
-            path: 03-reference/vscode-ext/restartTSServerOnSave.mdx
           - page: baml.enablePlaygroundProxy
             path: 03-reference/vscode-ext/enablePlaygroundProxy.mdx
+          - page: baml.syncExtensionToGeneratorVersion
+            path: 03-reference/vscode-ext/syncExtensionToGeneratorVersion.mdx
       - section: Boundary Extraction API
         contents:
           - api: API Reference

fern/docs.yml

@@ -34,7 +34,7 @@ generator lang_ruby {
 generator openapi {
   output_type rest/openapi
   output_dir "../openapi"
-  version "0.86.1"
+  version "0.86.0"
   on_generate "rm .gitignore"
 }