Add token narrative interpreter

[psychedelanon]

Summary

• repurpose agent3 into CLI tool that summarizes social buzz for a given token
• remove alpha_scry job from scheduler
• test metadata lookup, social snippet parsing, and narrative generation

Testing

• pytest -q
• bun test (fails: expect(received).toBe(expected))

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https://chatgpt.com/codex/tasks/task_e_6851bd1e8a3c8324a522636bd55471b6