feat: add supports for Matrix protocol(#2110)

* Optimize the plugin system

* feat: enhance plugin installation process and improve task management

* fix: linter err

* feat: add Matrix adapter with multi-bridge support

- MatrixAdapter with text/image/file message support
- Multi-bridge architecture (BridgeState) for Discord, Telegram, etc.
- Auto-login, QR forwarding, disconnect detection
- Force logout+login on adapter start
- Group/private chat detection excluding bridge bots
- matrix-nio dependency added

* docs: sync platform tables across all READMEs with Matrix bridge support

- Add Matrix/Satori compatibility notes to all platforms
- Add 21 Matrix-only platforms (Signal, WhatsApp, Messenger, etc.)
- Keep international market ordering (Discord first) for non-CN READMEs

* Update API base URL to localhost

* fix: remove unused datetime import (ruff)

* style: ruff format matrix.py

* docs: collapse matrix platform list

* docs: simplify platform compatibility notes

---------

Co-authored-by: Junyan Qin <rockchinq@gmail.com>

README_CN.md

@@ -87,13 +87,16 @@ docker compose up -d
 | QQ | ✅ | 个人号、官方机器人（频道、私聊、群聊） |
 | 微信 | ✅ | 个人微信、微信公众号 |
 | 企业微信 | ✅ | 应用消息、对外客服、智能机器人 |
-| 飞书 | ✅ |  |
-| 钉钉 | ✅ |  |
-| Discord | ✅ |  |
-| Telegram | ✅ |  |
-| Slack | ✅ |  |
-| LINE | ✅ |  |
-| KOOK | ✅ |  |
+| 飞书 | ✅ | 官方 |
+| 钉钉 | ✅ | 官方 |
+| Satori | ✅ |  |
+| Discord | ✅ | 官方 |
+| Telegram | ✅ | 官方 |
+| Slack | ✅ | 官方 |
+| LINE | ✅ | 官方 |
+| KOOK | ✅ | 官方 |
+| Email | ✅ | 只 Matrix、Satori |
+| Matrix | ✅ | 支持多种桥接平台，如 Signal、WhatsApp、Messenger、iMessage、Mattermost、Google Chat、IRC、XMPP、Zulip 等 |
 
 ---