Change AppleScript strategy to use clipboard copy/paste

Instead of typing commands character by character, which can be slow
and error-prone with special characters, we now:
1. Copy the command to clipboard using NSPasteboard
2. Use Cmd+V to paste it in the terminal
3. Press Enter to execute

This approach is more reliable, faster, and handles special characters
better. Terminal.app continues to use 'do script' since it supports
it natively.

VibeTunnel/Utilities/TerminalLauncher.swift

@@ -129,41 +129,20 @@ enum Terminal: String, CaseIterable {
             """
         }
         
-        // Warp has issues with key code 36 (Enter), so we use a special approach
-        if self == .warp {
+        // For all other terminals, use clipboard approach for reliability
+        // This avoids issues with special characters and long commands
+        // Note: The command is already copied to clipboard before this script runs
         return """
         tell application "\(processName)"
             activate
             tell application "System Events"
+                -- Create new window/tab
                 keystroke "n" using {command down}
-                end tell
-                delay 3
-                tell application "System Events"
-                    -- Warp needs special handling for command execution
-                    -- First, type the command
-                    keystroke "\(config.keystrokeEscapedCommand)"
+                delay 0.5
+                -- Paste command from clipboard
+                keystroke "v" using {command down}
                 delay 0.1
-                    -- Try multiple approaches to execute the command
-                    -- Option 1: Ctrl+J (line feed)
-                    keystroke "j" using {control down}
-                    delay 0.1
-                    -- Option 2: If that didn't work, try regular Enter
-                    key code 36
-                end tell
-            end tell
-            """
-        }
-        
-        // Standard approach for other terminals
-        return """
-        tell application "\(processName)"
-            activate
-            tell application "System Events"
-                keystroke "n" using {command down}
-            end tell
-            delay 3
-            tell application "System Events"
-                keystroke "\(config.keystrokeEscapedCommand)"
+                -- Execute the command
                 key code 36
             end tell
         end tell
@@ -381,6 +360,10 @@ final class TerminalLauncher {
         switch method {
         case .appleScript(let script):
             logger.debug("Generated AppleScript:\n\(script)")
+            // For non-Terminal.app terminals, copy command to clipboard first
+            if config.terminal != .terminal {
+                copyToClipboard(config.fullCommand)
+            }
             try executeAppleScript(script)
             
         case .processWithArgs(let args):
@@ -439,6 +422,12 @@ final class TerminalLauncher {
         }
     }
     
+    private func copyToClipboard(_ text: String) {
+        let pasteboard = NSPasteboard.general
+        pasteboard.clearContents()
+        pasteboard.setString(text, forType: .string)
+    }
+    
     private func executeAppleScript(_ script: String) throws {
         do {
             // Use a longer timeout (15 seconds) for terminal launch operations
@@ -504,7 +493,7 @@ final class TerminalLauncher {
         let expandedWorkingDir = (workingDirectory as NSString).expandingTildeInPath
         
         // Use provided tty-fwd path or find bundled one
-        let ttyFwd = ttyFwdPath ?? findTTYFwdBinary()
+        _ = ttyFwdPath ?? findTTYFwdBinary()
         
         // The command comes pre-formatted from Rust, just launch it
         // Pass the working directory separately to avoid double-escaping issues