fix: ship prebuilt lib and drop prepare for one-click git install

Avoids pnpm allowBuilds block on dsh plugin add; README install steps expanded for first-time users.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/commands.d.ts

@@ -0,0 +1,39 @@
+export declare const MSG: {
+    readonly DENIED: "无权限。";
+    readonly WELCOME: string;
+    readonly HELP: string;
+    readonly NEED_BIND: "尚未绑定本机会话。请先发送 /sessions 选择一个。";
+    readonly NO_LIVE: "当前没有正在运行的本机会话。请先在 Web（dsh web）打开或继续一个对话，再发 /sessions。";
+    readonly BOUND: (label: string) => string;
+    readonly UNBOUND: "已断开绑定。本机会话仍在运行。";
+    readonly STATUS_NONE: "当前未绑定任何本机会话。发送 /sessions 选择。";
+    readonly STATUS_BOUND: (label: string) => string;
+    readonly GONE: "绑定的会话已不在本机运行（可能已在 Web 关闭）。请重新 /sessions。";
+    readonly unknown: (command: string) => string;
+};
+export type ParsedCommand = {
+    type: 'start';
+    text: string;
+} | {
+    type: 'help';
+    text: string;
+} | {
+    type: 'sessions';
+    text: string;
+} | {
+    type: 'status';
+    text: string;
+} | {
+    type: 'unbind';
+    text: string;
+} | {
+    type: 'unknown';
+    command: string;
+    text: string;
+} | {
+    type: 'plain';
+    text: string;
+};
+export declare function parseCommand(text: string): ParsedCommand;
+/** Callback data prefix for session bind buttons. */
+export declare const BIND_CB_PREFIX = "bind:";