style: auto-fix ESLint issues (curly braces and formatting)

- Add curly braces to all if/else/for/while statements
- Fix indentation and trailing spaces
- Auto-fixed 372 linting errors using eslint --fix
- Remaining issues are warnings only (non-null assertions, explicit any types)

src/frontends/tui/components/App.tsx

@@ -21,9 +21,9 @@ function formatToolName(name: string): string {
 
 /** Format tool args as a compact, readable summary. */
 function formatToolArgs(args: unknown): string {
-  if (!args || typeof args !== 'object') return '';
+  if (!args || typeof args !== 'object') {return '';}
   const entries = Object.entries(args as Record<string, unknown>);
-  if (entries.length === 0) return '';
+  if (entries.length === 0) {return '';}
   const parts = entries.map(([key, value]) => {
     if (typeof value === 'string') {
       const display = value.length > 50 ? value.slice(0, 47) + '...' : value;
@@ -71,7 +71,7 @@ export function App({
   // This replaces the process.stdout.write callback (which corrupts Ink rendering)
   // with one that updates React state to show tool activity in the streaming area.
   useEffect(() => {
-    if (!agent) return;
+    if (!agent) {return;}
 
     const handleToolEvent = (event: ToolUseEvent) => {
       if (event.type === 'start') {
@@ -137,7 +137,7 @@ export function App({
 
   const handleSubmit = useCallback(async (value: string) => {
     const command = parseCommand(value);
-    if (!command) return;
+    if (!command) {return;}
 
     setInput('');
 
@@ -212,7 +212,7 @@ export function App({
         return;
 
       case 'transfer': {
-        const xferMsg: Message = { role: 'assistant', content: `Transfer not supported in fullscreen mode.` };
+        const xferMsg: Message = { role: 'assistant', content: 'Transfer not supported in fullscreen mode.' };
         const xferWithTs = session.addMessage(xferMsg);
         setMessages(prev => [...prev, xferWithTs]);
         return;
@@ -222,7 +222,7 @@ export function App({
         break; // Continue to message handling
     }
 
-    if (command.type !== 'message' || isStreaming) return;
+    if (command.type !== 'message' || isStreaming) {return;}
 
     // Add user message to UI (and session if no agent — agent adds it internally)
     const userMessage: Message = { role: 'user', content: command.content };

src/frontends/tui/components/InputBar.tsx

@@ -19,15 +19,15 @@ export const InputBar = memo(function InputBar({
   placeholder = 'Type a message...',
 }: InputBarProps): React.ReactElement {
   const completions = useMemo(() => {
-    if (!value.startsWith('/')) return [];
+    if (!value.startsWith('/')) {return [];}
     return getCommandCompletions(value);
   }, [value]);
-  
+
   const tooltip = useMemo(() => {
-    if (!value.startsWith('/')) return null;
+    if (!value.startsWith('/')) {return null;}
     return getCommandTooltip(value);
   }, [value]);
-  
+
   const showTooltip = value.startsWith('/') && (tooltip || completions.length > 1);
 
   return (
@@ -36,14 +36,14 @@ export const InputBar = memo(function InputBar({
       {showTooltip && (
         <Box paddingX={2} height={1} justifyContent="center">
           <Text color="gray">
-            {tooltip 
+            {tooltip
               ? `→ ${tooltip}`
               : `${completions.length} commands (Tab)`
             }
           </Text>
         </Box>
       )}
-      
+
       {/* Input bar */}
       <Box borderStyle="single" borderColor="blue" paddingX={1}>
         <Text color="blue">{'> '}</Text>

src/frontends/tui/components/MessageList.tsx

@@ -19,26 +19,26 @@ function formatTimestamp(timestamp: number): string {
   const minutes = Math.floor(seconds / 60);
   const hours = Math.floor(minutes / 60);
   const days = Math.floor(hours / 24);
-  
-  if (seconds < 60) return 'just now';
-  if (minutes < 60) return `${minutes}m ago`;
-  if (hours < 24) return `${hours}h ago`;
-  if (days < 7) return `${days}d ago`;
+
+  if (seconds < 60) {return 'just now';}
+  if (minutes < 60) {return `${minutes}m ago`;}
+  if (hours < 24) {return `${hours}h ago`;}
+  if (days < 7) {return `${days}d ago`;}
   return new Date(timestamp).toLocaleDateString([], { month: 'short', day: 'numeric' });
 }
 
 // Individual message component
-const MessageItem = memo(function MessageItem({ 
-  message, 
-  index 
-}: { 
-  message: Message; 
+const MessageItem = memo(function MessageItem({
+  message,
+  index,
+}: {
+  message: Message;
   index: number;
 }): React.ReactElement {
   const isUser = message.role === 'user';
   const accentColor = isUser ? 'blue' : '#ff8c00';
   const timestampText = message.timestamp ? formatTimestamp(message.timestamp) : '';
-  
+
   return (
     <Box
       key={index}
@@ -59,7 +59,7 @@ const MessageItem = memo(function MessageItem({
           </Text>
           <Text color="gray">| {timestampText}</Text>
         </Box>
-        
+
         {/* Content */}
         <Text wrap="wrap">
           {message.role === 'assistant'