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

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

pyproject.toml

@@ -72,6 +72,7 @@ dependencies = [
     "langbot-plugin==0.3.10",
     "asyncpg>=0.30.0",
     "line-bot-sdk>=3.19.0",
+    "matrix-nio>=0.25.2",
     "tboxsdk>=0.0.10",
     "boto3>=1.35.0",
     "pymilvus>=2.6.4",