fix(agent): preserve durable VMs and surface error state

[justinmoon]

Summary

• move the deferred microvm v1 carryovers into a dedicated section at the end of todos/microvm-v2.md
• stop personal-agent VMs from being reaped on the generic TTL path by marking them keep
• let GET /v1/agents/me surface the latest error lifecycle row when no active row exists

Testing

• cargo fmt
• cargo test -p pika-agent-microvm
• cargo test -p vm-spawner keep_vms_are_not_considered_expired -- --nocapture
• cargo test -p pika-server agent_api::tests -- --nocapture

---

[coderabbitai]

Warning

Rate limit exceeded

@justinmoon has exceeded the limit for the number of commits that can be reviewed per hour. Please wait 2 minutes and 57 seconds before requesting another review.

⌛ How to resolve this issue?

After the wait time has elapsed, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

We recommend that you space out your commits to avoid hitting the rate limit.

🚦 How do rate limits work?

CodeRabbit enforces hourly rate limits for each developer per organization.

Our paid plans have higher rate limits than the trial, open-source and free plans. In all cases, we re-allow further reviews after a brief timeout.

Please see our FAQ for further information.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 34c59ae5-f0f5-41e6-90ff-e1085503171f

📥 Commits

Reviewing files that changed from the base of the PR and between 0e8bd59 and c6dd5c6.

📒 Files selected for processing (8)

• crates/pika-agent-microvm/src/lib.rs
• crates/pika-server/src/agent_api.rs
• crates/pika-server/src/models/agent_instance.rs
• crates/pika-server/src/models/mod.rs
• crates/vm-spawner/src/manager.rs
• crates/vm-spawner/src/models.rs
• todos/microvm-v1.md
• todos/microvm-v2.md

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch microvm-v1-todos

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 3 additional findings.