Release v3.6.2: Node1 QUIC, Speedlanding reliability, version bump

- Add Node1 QUIC transport (UUID auth, bincode tx, region endpoints)
- Speedlanding: ensure_connected, connect/send timeouts, lock on reconnect, SNI from endpoint host
- Bump version to 3.6.2; update README(s) and add release notes

Made-with: Cursor

README_CN.md

@@ -90,14 +90,14 @@ git clone https://github.com/0xfnzero/sol-trade-sdk
 
 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.5.7" }
+sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.6.2" }
 ```
 
 ### 使用 crates.io
 
 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = "3.5.7"
+sol-trade-sdk = "3.6.2"
 ```
 
 ## 🛠️ 使用示例