docs: update platform support lists in READMEs

Add planned platform support for WhatsApp, Teams, Google Chat, Mattermost, and Matrix in both English and Chinese README files.

generated by llmgit

Co-Authored-By: Claude <noreply@anthropic.com>

README.md

@@ -35,6 +35,11 @@ All components are decoupled via Go interfaces — fully pluggable and extensibl
 | Platform | Discord | ✅ Gateway — no public IP needed |
 | Platform | LINE | ✅ Webhook — public URL required |
 | Platform | WeChat Work (企业微信) | ✅ Webhook — public URL required |
+| Platform | WhatsApp | 🔜 Planned (Business Cloud API) |
+| Platform | Microsoft Teams | 🔜 Planned (Bot Framework) |
+| Platform | Google Chat | 🔜 Planned (Chat API) |
+| Platform | Mattermost | 🔜 Planned (Webhook + Bot) |
+| Platform | Matrix (Element) | 🔜 Planned (Client-Server API) |
 
 ## Quick Start
 

README.zh-CN.md

@@ -35,6 +35,11 @@
 | Platform | Discord | ✅ Gateway — 无需公网 IP |
 | Platform | LINE | ✅ Webhook — 需要公网 URL |
 | Platform | 企业微信 (WeChat Work) | ✅ Webhook — 需要公网 URL |
+| Platform | WhatsApp | 🔜 计划中 (Business Cloud API) |
+| Platform | Microsoft Teams | 🔜 计划中 (Bot Framework) |
+| Platform | Google Chat | 🔜 计划中 (Chat API) |
+| Platform | Mattermost | 🔜 计划中 (Webhook + Bot) |
+| Platform | Matrix (Element) | 🔜 计划中 (Client-Server API) |
 
 ## 快速开始