refactor: Transport trait and worker transport, and streamable http client with those new features. (#167)

* refactor: a transport trait and streamable http client

* test: test with js streamable http server

* refactor: separate sse stream connection

* fix(test): streamable http client test with js

* fix(test): wait longer time for js server startup

.github/workflows/ci.yml

@@ -157,15 +157,16 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@nightly
 
       - uses: Swatinem/rust-cache@v2
 
       - name: Generate documentation
         run: |
-          cargo doc --no-deps -p rmcp -p rmcp-macros
+          cargo +nightly doc --no-deps -p rmcp -p rmcp-macros --all-features
         env:
-          RUSTDOCFLAGS: -Dwarnings
+          RUSTDOCFLAGS: --cfg docsrs -Dwarnings
+          RUSTFLAGS: --cfg docsrs 
 
   release:
     name: Release crates