[QA] Live gate: multi-agent parallel run and session restore integration tests (4.10 + 4.11)

[ch1kim0n1]

Problem

Multi-agent parallel operation and session restore have not been tested with real agents. These are the core use cases that distinguish AgentMesh from single-agent tools.

Severity

P1 — Release Blocker

Category

QA / Integration

Persona Affected

Alex (Technical)

Steps to Reproduce

Multi-Agent (4.10):

1. Spawn 3 sessions against 3 different GitHub issues simultaneously
2. Verify all 3 appear in dashboard within 10s (SSE)
3. Verify lifecycle manager polls all 3 independently (check ao status)
4. Kill one session mid-task; verify other 2 continue unaffected
5. Verify ao status correctly shows mixed states (working, killed, pr_open)

Session Restore (4.11):

1. Spawn 2 sessions with active agent processes
2. ao stop while agents are running
3. ao start --restore
4. Verify both sessions reappear with correct prior state
5. Verify agent processes were re-attached or correctly marked as terminated

Expected Behavior

Multi-agent: all 5 steps pass. Session states are isolated and correctly reported.
Restore: sessions reappear. Agents that were alive before stop are re-attached if still running, else marked terminated.

Why This Blocks Shipping

Parallel operation is the product's core value proposition. If 3 agents can't run simultaneously without interfering, the product doesn't deliver what it promises.