Allows to specify the default for an array parameter.

Signed-off-by: Tibor Vass <teabee89@gmail.com>

* add transport layer interface

* universal client

* impl sse & stdio transport based on the original client

* refactor old client to provide compibility

* rename

* remove old client types

* add test for stdio transport

* rename 'done' to 'closed', to distinguish with ctx.Done

* add cancelSSEStream for better handling of close

* fix connection leak when start timeout

* avoid multiple starting

* use atomic for closed to be more natural compared to started

* fix leak of timer

* Create sse_test.go

* enforce test

* add comment

* sse: add custom header in start request

* update comment

* comment

* cover #88

* cover #107

* fix demo sse server in race test

When there is no input to a tool, the `Properies` map is `nil` if the
Tool is not created using `NewTool`. This causes the `property` field to
be set to `null` and clients such as `claude-desktop` to skip the tools
silently.

Annotating the field as `omitempty` is inline with the behavior of the
[typescript-sdk](https://github.com/modelcontextprotocol/typescript-sdk/blob/fbdeb06a4185ba2f7581603a768cd7171c64d6fc/src/types.ts#L749).

* introduce NewToolResultErrorWithErr and update docs

* rename to NewToolResultErrorFromErr

…down; fix test error on Windows (#166 #172) (#170)

* Add mutex to avoid data race bewteen Start and Shutdown in SSEServer struct

* delete the mutex for session

* Added checks for Windows

* Update sse.go

* Update stdio_test.go

Replace string ping messages with MCP spec compliant JSON-RPC requests.

- Update request handler to ignore ping responses (add `Result` field to
  `baseMessage` to disambiguate empty responses from other incoming
  messages)
- Implement MCP spec compliant [ping
  request](https://modelcontextprotocol.io/specification/2024-11-05/basic/utilities/ping)

* add streamable http transport

* doc

* update

* remove default timeout

* Update streamable_http.go

* add http client

* Update streamable_http.go

* add timeout to close request

* Update http.go

* fix log

…ype (#148)

* feat:Added the parameter parsing mode to parse any to the specified type

* docs:AAdd GoDoc comments to exported functions.

---------

Co-authored-by: lianghui <lianghui@ghgame.cn>