Merge pull request #2811 from afjcjsbx/fix/mcp-streamable-http-support

fix(mcp): support streamable HTTP alias, request-response mode and integration tests

docs/reference/mcp-cli.md

@@ -117,7 +117,7 @@ Supported flags:
 | `--env`, `-e` | Add a stdio environment variable in `KEY=value` format. Repeatable. Values are saved to config. |
 | `--env-file` | Attach an env file path to a stdio server. Recommended for secrets you do not want stored inline in `config.json`. |
 | `--header`, `-H` | Add an HTTP header in `Name: Value` or `Name=Value` format. Repeatable. |
-| `--transport`, `-t` | Transport type: `stdio` (default), `http`, or `sse`. |
+| `--transport`, `-t` | Transport type: `stdio` (default), `http` / `streamable-http`, or `sse`. |
 | `--force`, `-f` | Overwrite an existing server entry without confirmation. |
 | `--deferred` | Mark the server as deferred: tools are hidden and discoverable on demand. |
 | `--no-deferred` | Mark the server as non-deferred: tools are always loaded into context. |
@@ -198,13 +198,15 @@ For `stdio`:
 - `--header` is rejected
 - `-- <command> [args...]` is supported and recommended for unambiguous parsing
 
-For `http` / `sse`:
+For `http` / `streamable-http` / `sse`:
 
 - `<command-or-url>` must be a valid URL
 - extra command args are rejected
 - `--env` is rejected
 - `--env-file` is rejected
 - `--header` is supported and stored in `headers`
+- `http` and `streamable-http` use streamable HTTP request-response mode
+- `sse` uses the same streamable HTTP transport, but also enables the optional standalone SSE listener for server-initiated notifications
 
 Overwrite behavior: