Add session connector: Amp

[Railly]

Context

Amp stores skills in ~/.config/agents/skills/. Need to investigate session data format.

What's Needed

1. Investigate Amp's session storage format
2. Determine if skill invocations are trackable
3. If trackable: build connector at packages/cli/src/scanner/connectors/amp.ts

References

• Skills path: ~/.config/agents/skills/