Revert "Remove telegram, discord, and fakechat plugins (#741)"

This reverts commit d53f6ca4cd.

external_plugins/discord/README.md

@@ -4,9 +4,6 @@ Connect a Discord bot to your Claude Code with an MCP server.
 
 When the bot receives a message, the MCP server forwards it to Claude and provides tools to reply, react, and edit messages.
 
-## Prerequisites
-
-- [Bun](https://bun.sh) — the MCP server runs on Bun. Install with `curl -fsSL https://bun.sh/install | bash`.
 
 ## Quick Setup
 > Default pairing flow for a single-user DM bot. See [ACCESS.md](./ACCESS.md) for groups and multi-user setups.

external_plugins/telegram/README.md

@@ -4,10 +4,6 @@ Connect a Telegram bot to your Claude Code with an MCP server.
 
 The MCP server logs into Telegram as a bot and provides tools to Claude to reply, react, or edit messages. When you message the bot, the server forwards the message to your Claude Code session.
 
-## Prerequisites
-
-- [Bun](https://bun.sh) — the MCP server runs on Bun. Install with `curl -fsSL https://bun.sh/install | bash`.
-
 ## Quick Setup
 > Default pairing flow for a single-user DM bot. See [ACCESS.md](./ACCESS.md) for groups and multi-user setups.