pipecat/changelog/4371.added.md

• Added tool_resources to PipelineTask and FunctionCallParams. Pass an application-defined object (DB handles, clients, state, etc.) to PipelineTask(..., tool_resources=...) and access it from any tool handler via params.tool_resources. Passed by reference; the caller retains their handle and can read mutations after the task finishes. Resolves #4256.