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/bridge.d.ts

@@ -0,0 +1,42 @@
+import type { Context } from '@deepseek-ai/cordis';
+import { type TelegramClientLike, type TelegramUpdate } from './client.js';
+export interface TelegramBridgeOptions {
+    token: string;
+    allowedUserIds: number[];
+    allowAllUsers: boolean;
+    client?: TelegramClientLike;
+    sleep?: (ms: number) => Promise<void>;
+    maxMessageLength?: number;
+    pollingTimeoutSec?: number;
+}
+export declare class TelegramBridge {
+    private readonly ctx;
+    private readonly token;
+    private readonly allowedUserIds;
+    private readonly allowAllUsers;
+    private readonly client;
+    private readonly sleep;
+    private readonly maxMessageLength;
+    private readonly bindings;
+    private polling;
+    private offset;
+    private pollPromise;
+    private pollAbort;
+    private disposeSessionListener;
+    constructor(ctx: Context, options: TelegramBridgeOptions);
+    start(): void;
+    stop(): Promise<void>;
+    processUpdate(update: TelegramUpdate): Promise<void>;
+    private handleCallback;
+    private liveAgents;
+    private findLiveAgent;
+    private sendSessionPicker;
+    private sendStatus;
+    private followupBound;
+    private pollLoop;
+    private interruptibleDelay;
+    private interruptibleSleep;
+    private onSessionEvent;
+    private deliver;
+    private redact;
+}