Add SEP-1577 sampling with tools support#1018
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Introduces parallel V2 sampling types (SamplingMessageV2, CreateMessageWithToolsRequest/Result, ToolUseContent, ToolResultContent, ToolChoice) alongside the existing V1 types, leaving the legacy wire format byte-identical. Servers call createMessageWithTools on the exchange; a version gate refuses multi-content or tools payloads when the negotiated protocol version is older than 2025-11-25. Clients opt in via samplingWithTools(handler) on the builder, which advertises sampling.tools in the capability handshake. StopReason gains TOOL_USE. Signed-off-by: Dariusz Jędrzejczyk <2554306+chemicL@users.noreply.github.com>
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Introduces parallel V2 sampling types (
SamplingMessageV2,CreateMessageWithToolsRequest/Result,ToolUseContent,ToolResultContent,ToolChoice) alongside the existing V1 types, leaving the legacy wire format byte-identical. Servers callcreateMessageWithToolson the exchange; a version gate refuses multi-content or tools payloads when the negotiated protocol version is older than 2025-11-25. Clients opt in viasamplingWithTools(handler)on the builder, which advertises sampling.tools in the capability handshake.StopReasongainsTOOL_USE.