[202601200656-BZKZ6Z] Simplify core; move extensions to recipes

[densmirnov]

Internal ID: 202601200656-BZKZ6Z

Description
Define the minimal core agent/task workflow, allow recipe tool/agentctl usage with guardrails, and plan the migration of extension features into recipes.

Meta

• Status: TODO
• Priority: med
• Owner: ORCHESTRATOR
• Tags: recipes, workflow
• Depends on: none

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