Redesign session selector with multi-line layout

- Custom SessionList component with 2 lines per item
- First line: message text (bold when selected)
- Second line: metadata (time · message count) in dim
- Blue › cursor for selected item
- Added "Resume Session" header
- Handle Ctrl+C (‹x03›) in SelectList for consistency
- Improved date formatting (38 minutes ago, 8 hours ago, etc.)

packages/coding-agent/src/main.ts

@@ -123,27 +123,13 @@ Current directory: ${process.cwd()}`;
 async function selectSession(sessionManager: SessionManager): Promise<string | null> {
 	return new Promise((resolve) => {
 		const ui = new TUI(new ProcessTerminal());
-		let selectedPath: string | null = null;
 		let resolved = false;
 
-		// Handle Ctrl+C
-		const handleSigint = () => {
-			if (!resolved) {
-				resolved = true;
-				ui.stop();
-				process.exit(0);
-			}
-		};
-
-		process.on("SIGINT", handleSigint);
-
 		const selector = new SessionSelectorComponent(
 			sessionManager,
 			(path: string) => {
 				if (!resolved) {
 					resolved = true;
-					selectedPath = path;
-					process.removeListener("SIGINT", handleSigint);
 					ui.stop();
 					resolve(path);
 				}
@@ -151,7 +137,6 @@ async function selectSession(sessionManager: SessionManager): Promise<string | n
 			() => {
 				if (!resolved) {
 					resolved = true;
-					process.removeListener("SIGINT", handleSigint);
 					ui.stop();
 					resolve(null);
 				}
@@ -159,7 +144,7 @@ async function selectSession(sessionManager: SessionManager): Promise<string | n
 		);
 
 		ui.addChild(selector);
-		ui.setFocus(selector.getSelectList());
+		ui.setFocus(selector.getSessionList());
 		ui.start();
 	});
 }

packages/coding-agent/src/tui/session-selector.ts

@@ -1,4 +1,4 @@
-import { type Component, Container, type SelectItem, SelectList, Text } from "@mariozechner/pi-tui";
+import { type Component, Container, Spacer, Text, visibleWidth } from "@mariozechner/pi-tui";
 import chalk from "chalk";
 import type { SessionManager } from "../session-manager.js";
 
@@ -20,11 +20,101 @@ interface SessionItem {
 	firstMessage: string;
 }
 
+/**
+ * Custom session list component with multi-line items
+ */
+class SessionList implements Component {
+	private sessions: SessionItem[] = [];
+	private selectedIndex: number = 0;
+	public onSelect?: (sessionPath: string) => void;
+	public onCancel?: () => void;
+
+	constructor(sessions: SessionItem[]) {
+		this.sessions = sessions;
+	}
+
+	render(width: number): string[] {
+		const lines: string[] = [];
+
+		if (this.sessions.length === 0) {
+			lines.push(chalk.gray("  No sessions found"));
+			return lines;
+		}
+
+		// Format dates
+		const formatDate = (date: Date): string => {
+			const now = new Date();
+			const diffMs = now.getTime() - date.getTime();
+			const diffMins = Math.floor(diffMs / 60000);
+			const diffHours = Math.floor(diffMs / 3600000);
+			const diffDays = Math.floor(diffMs / 86400000);
+
+			if (diffMins < 1) return "just now";
+			if (diffMins < 60) return `${diffMins} minute${diffMins !== 1 ? "s" : ""} ago`;
+			if (diffHours < 24) return `${diffHours} hour${diffHours !== 1 ? "s" : ""} ago`;
+			if (diffDays === 1) return "1 day ago";
+			if (diffDays < 7) return `${diffDays} days ago`;
+
+			return date.toLocaleDateString();
+		};
+
+		// Render each session (2 lines per session)
+		for (let i = 0; i < this.sessions.length; i++) {
+			const session = this.sessions[i];
+			const isSelected = i === this.selectedIndex;
+
+			// Normalize first message to single line
+			const normalizedMessage = session.firstMessage.replace(/\n/g, " ").trim();
+
+			// First line: cursor + message
+			const cursor = isSelected ? chalk.blue("› ") : "  ";
+			const maxMsgWidth = width - 2; // Account for cursor
+			const truncatedMsg = normalizedMessage.substring(0, maxMsgWidth);
+			const messageLine = cursor + (isSelected ? chalk.bold(truncatedMsg) : truncatedMsg);
+
+			// Second line: metadata (dimmed)
+			const modified = formatDate(session.modified);
+			const msgCount = `${session.messageCount} message${session.messageCount !== 1 ? "s" : ""}`;
+			const metadata = `  ${modified} · ${msgCount}`;
+			const metadataLine = chalk.dim(metadata);
+
+			lines.push(messageLine);
+			lines.push(metadataLine);
+		}
+
+		return lines;
+	}
+
+	handleInput(keyData: string): void {
+		// Up arrow
+		if (keyData === "\x1b[A") {
+			this.selectedIndex = Math.max(0, this.selectedIndex - 1);
+		}
+		// Down arrow
+		else if (keyData === "\x1b[B") {
+			this.selectedIndex = Math.min(this.sessions.length - 1, this.selectedIndex + 1);
+		}
+		// Enter
+		else if (keyData === "\r") {
+			const selected = this.sessions[this.selectedIndex];
+			if (selected && this.onSelect) {
+				this.onSelect(selected.path);
+			}
+		}
+		// Escape or Ctrl+C
+		else if (keyData === "\x1b" || keyData === "\x03") {
+			if (this.onCancel) {
+				this.onCancel();
+			}
+		}
+	}
+}
+
 /**
  * Component that renders a session selector
  */
 export class SessionSelectorComponent extends Container {
-	private selectList: SelectList;
+	private sessionList: SessionList;
 
 	constructor(sessionManager: SessionManager, onSelect: (sessionPath: string) => void, onCancel: () => void) {
 		super();
@@ -32,77 +122,31 @@ export class SessionSelectorComponent extends Container {
 		// Load all sessions
 		const sessions = sessionManager.loadAllSessions();
 
-		if (sessions.length === 0) {
-			this.addChild(new DynamicBorder());
-			this.addChild(new Text(chalk.gray("  No previous sessions found"), 0, 0));
-			this.addChild(new DynamicBorder());
-			this.selectList = new SelectList([], 0);
-			this.addChild(this.selectList);
-
-			// Auto-cancel if no sessions
-			setTimeout(() => onCancel(), 100);
-			return;
-		}
-
-		// Format sessions as select items
-		const items: SelectItem[] = sessions.map((session) => {
-			// Format dates
-			const formatDate = (date: Date): string => {
-				const now = new Date();
-				const diffMs = now.getTime() - date.getTime();
-				const diffMins = Math.floor(diffMs / 60000);
-				const diffHours = Math.floor(diffMs / 3600000);
-				const diffDays = Math.floor(diffMs / 86400000);
-
-				if (diffMins < 1) return "now";
-				if (diffMins < 60) return `${diffMins}m`;
-				if (diffHours < 24) return `${diffHours}h`;
-				if (diffDays === 1) return "1d";
-				if (diffDays < 7) return `${diffDays}d`;
-
-				// Fallback to date string
-				return date.toLocaleDateString();
-			};
-
-			// Normalize first message to single line
-			const normalizedMessage = session.firstMessage.replace(/\n/g, " ").trim();
-
-			// Build description with metadata (single line, compact format)
-			const modified = formatDate(session.modified);
-			const msgCount = `${session.messageCount}msg`;
-
-			// Keep description compact: "modified • count"
-			const description = `${modified} • ${msgCount}`;
-
-			return {
-				value: session.path,
-				label: normalizedMessage, // Let SelectList handle truncation based on actual width
-				description,
-			};
-		});
-
-		// Add top border
+		// Add header
+		this.addChild(new Spacer(1));
+		this.addChild(new Text(chalk.bold("Resume Session"), 1, 0));
+		this.addChild(new Spacer(1));
 		this.addChild(new DynamicBorder());
-		this.addChild(new Text(chalk.bold("Select a session to resume:"), 1, 0));
+		this.addChild(new Spacer(1));
 
-		// Create selector
-		this.selectList = new SelectList(items, Math.min(10, items.length));
+		// Create session list
+		this.sessionList = new SessionList(sessions);
+		this.sessionList.onSelect = onSelect;
+		this.sessionList.onCancel = onCancel;
 
-		this.selectList.onSelect = (item) => {
-			onSelect(item.value);
-		};
-
-		this.selectList.onCancel = () => {
-			onCancel();
-		};
-
-		this.addChild(this.selectList);
+		this.addChild(this.sessionList);
 
 		// Add bottom border
+		this.addChild(new Spacer(1));
 		this.addChild(new DynamicBorder());
+
+		// Auto-cancel if no sessions
+		if (sessions.length === 0) {
+			setTimeout(() => onCancel(), 100);
+		}
 	}
 
-	getSelectList(): SelectList {
-		return this.selectList;
+	getSessionList(): SessionList {
+		return this.sessionList;
 	}
 }

packages/tui/src/components/select-list.ts

@@ -148,8 +148,8 @@ export class SelectList implements Component {
 				this.onSelect(selectedItem);
 			}
 		}
-		// Escape
-		else if (keyData === "\x1b") {
+		// Escape or Ctrl+C
+		else if (keyData === "\x1b" || keyData === "\x03") {
 			if (this.onCancel) {
 				this.onCancel();
 			}