Update CLI docs to have bun step

docs/content/docs/get-started/quickstart.mdx

@@ -339,7 +339,7 @@ Get started quickly with the CUA CLI - the easiest way to manage cloud VMs and r
 
 ### Install the CUA CLI
 
-<Tabs items={['macOS / Linux', 'Windows', 'npm (Alternative)', 'From Source']}>
+<Tabs items={['macOS / Linux', 'Windows', 'Bun (Alternative)', 'From Source']}>
   <Tab value="macOS / Linux">
     ```bash
     curl -LsSf https://cua.ai/cli/install.sh | sh
@@ -350,9 +350,13 @@ Get started quickly with the CUA CLI - the easiest way to manage cloud VMs and r
     powershell -ExecutionPolicy ByPass -c "irm https://cua.ai/cli/install.ps1 | iex"
     ```
   </Tab>
-  <Tab value="npm (Alternative)">
+  <Tab value="Bun (Alternative)">
     ```bash
-    npm install -g @trycua/cli
+    # Install Bun if you don't have it
+    curl -fsSL https://bun.sh/install | bash
+    
+    # Install CUA CLI
+    bun add -g @trycua/cli
     ```
   </Tab>
   <Tab value="From Source">

docs/content/docs/libraries/cua-cli/installation.mdx

@@ -31,16 +31,21 @@ These scripts will automatically:
   The installation scripts will automatically detect your system and install the appropriate binary to your PATH.
 </Callout>
 
-## Alternative: npm Install
+## Alternative: Install with Bun
 
-You can also install the CLI via npm if you prefer:
+You can also install the CLI directly using Bun:
 
 ```bash
-npm install -g @trycua/cli
+# Install Bun if you don't have it
+curl -fsSL https://bun.sh/install | bash
+
+# Install CUA CLI
+bun add -g @trycua/cli
 ```
 
-<Callout type="warn">
-  The npm package requires Node.js 18+ to be installed on your system.
+<Callout type="info">
+  Using Bun provides faster installation and better performance compared to npm.
+  If you don't have Bun installed, the first command will install it for you.
 </Callout>
 
 ## Verify Installation