Fix iOS terminal Enter input encoding

apps/mobile/modules/t3-terminal/ios/T3TerminalModule.swift

@@ -7,7 +7,7 @@ public class T3TerminalModule: Module {
     // Bumped when native hardware-keyboard handling changes; surfaced in the JS debug
     // logs so a stale native binary is distinguishable from a broken key pipeline.
     Constants([
-      "hardwareKeyRevision": 2,
+      "hardwareKeyRevision": 3,
     ])
 
     View(T3TerminalView.self) {

apps/mobile/modules/t3-terminal/ios/T3TerminalView.swift

@@ -119,6 +119,21 @@ private enum TerminalHardwareKeyEncoder {
   }
 }
 
+private enum TerminalInputSequence {
+  /// Terminal Enter is carriage return. Sending line feed instead is Ctrl+J,
+  /// which raw-mode TUIs may interpret as the literal J key.
+  static let carriageReturn = "\r"
+
+  static func normalizingReturn(_ input: String) -> String {
+    switch input {
+    case "\n", "\r\n":
+      return carriageReturn
+    default:
+      return input
+    }
+  }
+}
+
 private final class TerminalInputField: UITextField {
   var onDeleteBackward: (() -> Void)?
   var onInsert: ((String) -> Void)?
@@ -352,15 +367,17 @@ public final class T3TerminalView: ExpoView, UITextFieldDelegate {
 
   public func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
     if !string.isEmpty {
-      emitInput(string)
+      // Some software keyboards deliver Return through this delegate instead of
+      // textFieldShouldReturn, so normalize that path too.
+      emitInput(TerminalInputSequence.normalizingReturn(string))
       return false
     }
 
     return false
   }
 
   public func textFieldShouldReturn(_ textField: UITextField) -> Bool {
-    emitInput("\n")
+    emitInput(TerminalInputSequence.carriageReturn)
     textField.text = ""
     return false
   }

apps/mobile/src/features/terminal/NativeTerminalSurface.tsx

@@ -145,7 +145,8 @@ const FallbackTerminalSurface = memo(function FallbackTerminalSurface(props: Ter
           onSubmitEditing={(event) => {
             const text = event.nativeEvent.text;
             if (text.length > 0) {
-              props.onInput(`${text}\n`);
+              // Terminal Enter is CR. LF is Ctrl+J and raw-mode TUIs can treat it as J.
+              props.onInput(`${text}\r`);
             }
           }}
         />