chore: add rust-toolchain.toml (#17)

Boshen · web-flow · commit 412e63e74b0b · 2025-06-29T21:08:44.000+08:00
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+channel = "1.88.0"
+profile = "default"
