feat: update webui extensions, models, and agent config

.pi/agent/extensions/webui/backend/config/paths.ts

@@ -45,12 +45,25 @@ export function createWebUiPaths(): WebUiPaths {
 	};
 }
 
-export function resolvePiRpcLaunch(paths: WebUiPaths): { command: string; args: string[]; mode: "dist" } {
+export type PiRpcLaunchMode = "dist" | "tsx";
+
+export function resolvePiRpcLaunch(
+	paths: WebUiPaths,
+): { command: string; args: string[]; mode: PiRpcLaunchMode } {
 	const rpcArgs = ["--mode", "rpc"];
-	if (!existsSync(paths.piCliDist)) {
-		throw new Error(
-			`[webui] 构建版 sproutclaw 未找到: ${paths.piCliDist}。请先运行: sproutclaw build`,
-		);
+	if (existsSync(paths.piCliDist)) {
+		return { command: process.execPath, args: [paths.piCliDist, ...rpcArgs], mode: "dist" };
 	}
-	return { command: process.execPath, args: [paths.piCliDist, ...rpcArgs], mode: "dist" };
+
+	const tsxCli = join(paths.repoRoot, "node_modules", "tsx", "dist", "cli.mjs");
+	const piCliSrc = join(paths.repoRoot, "packages", "coding-agent", "src", "cli.ts");
+	if (existsSync(tsxCli) && existsSync(piCliSrc)) {
+		return { command: process.execPath, args: [tsxCli, piCliSrc, ...rpcArgs], mode: "tsx" };
+	}
+
+	const buildHint =
+		process.platform === "win32"
+			? "请先运行: npm run build 或 pi-built.bat"
+			: "请先运行: npm run build 或 sproutclaw build";
+	throw new Error(`[webui] pi 未找到: ${paths.piCliDist}。${buildHint}`);
 }