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.md

@@ -82,19 +82,21 @@ docker compose up -d
 
 ## Supported Platforms
 
-| Platform | Status | Notes                                  |
-| -------- | ------ | -------------------------------------- |
-| Discord  | ✅     |                                        |
-| Telegram | ✅     |                                        |
-| Slack    | ✅     |                                        |
-| LINE     | ✅     |                                        |
-| QQ       | ✅     | Personal & Official API                |
-| WeCom    | ✅     | Enterprise WeChat, External CS, AI Bot |
-| WeChat   | ✅     | Personal & Official Account            |
-| Lark     | ✅     |                                        |
-| DingTalk | ✅     |                                        |
-| KOOK     | ✅     |                                        |
-| Satori   | ✅     |                                        |
+| Platform | Status | Notes |
+|----------|--------|-------|
+| Discord | ✅ | Official |
+| Telegram | ✅ | Official |
+| Slack | ✅ | Official |
+| LINE | ✅ | Official |
+| QQ | ✅ | Personal & Official API (Channel, DM, Group) |
+| WeCom | ✅ | Enterprise WeChat, External CS, AI Bot |
+| WeChat | ✅ | Personal & Official Account |
+| Lark | ✅ | Official |
+| DingTalk | ✅ | Official |
+| KOOK | ✅ | Official |
+| Satori | ✅ |  |
+| Email | ✅ | Matrix, Satori |
+| Matrix | ✅ | Supports multiple bridged platforms such as Signal, WhatsApp, Messenger, iMessage, Mattermost, Google Chat, IRC, XMPP, Zulip, and more |
 
 ---