bump cogito

[mudler]

No description provided.

[Copilot]

Pull request overview

This PR updates the cogito dependency to a newer version from February 14, 2026, and refactors the code in core/agent/agent.go to work with the updated library API.

Changes:

• Updated github.com/mudler/cogito dependency from version 0.8.2-0.20260206153401-a5346975d42b to 0.8.2-0.20260214201734-da0d4ceb2b44
• Simplified code in core/agent/agent.go by removing an intermediary LLM call and associated error handling
• Updated go.sum to reflect the new dependency version

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 1 comment.

File	Description
go.mod	Updates the cogito dependency version to the latest build
go.sum	Adds checksums for the new cogito dependency version
core/agent/agent.go	Removes intermediary LLM call, simplifying the code to directly use fragment's last message

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[Copilot]

The removed code included error handling for the a.llm.Ask() call. Now fragment.LastMessage() is called directly without checking if fragment has messages or handling potential nil/empty cases. This could cause a panic if fragment.Messages is empty.