feat: make hyper optional (#63)

* make hyper optional

* ignore .vscode dir

* hyper-server depends on server feature

Author: Vaiz

.gitignore

@@ -1,6 +1,7 @@
 /target
 .DS_store
 settings.json
+/.vscode
 
 
 # test artifacts

crates/rust-mcp-sdk/Cargo.toml

@@ -29,7 +29,7 @@ axum-server = { version = "0.7", features = [], optional = true }
 tracing.workspace = true
 
 # rustls = { workspace = true, optional = true }
-hyper = { version = "1.6.0" }
+hyper = { version = "1.6.0", optional = true }
 
 [dev-dependencies]
 reqwest = { workspace = true, default-features = false, features = [
@@ -59,6 +59,8 @@ client = ["rust-mcp-transport/stdio", "rust-mcp-transport/sse"] # Client feature
 hyper-server = [
     "axum",
     "axum-server",
+    "hyper",
+    "server",
     "uuid",
     "tokio-stream",
     "rust-mcp-transport/sse",