feat(simulate): add --list to show the project's simulation runs

[u9g]

lk agent simulate --view <ID> needs a run ID, and the only place to find one was the dashboard. Requested in #project-simulations: https://live-kit.slack.com/archives/C0A2DQNKQPN/p1788886841297879

lk agent simulate --list prints the project's simulation runs newest-first (ID, created, agent, mode, status, passed/failed/total jobs) and exits without running anything. --json prints the raw ListSimulationRuns response instead. It short-circuits every other flag the same way --export does.

$ lk agent simulate --list
┌─────────────────┬──────────────────────┬─────────────────────┬──────┬───────────┬────────┬────────┬──────┐
│ ID              │ Created              │ Agent               │ Mode │ Status    │ Passed │ Failed │ Jobs │
├─────────────────┼──────────────────────┼─────────────────────┼──────┼───────────┼────────┼────────┼──────┤
│ SR_8ZrYPxdFjAfR │ 2026-09-01T20:13:48Z │ simulation-ziy42v9d │ TEXT │ COMPLETED │ 3      │ 0      │ 3    │
│ SR_v22sNDpQNCN7 │ 2026-08-25T12:54:07Z │ simulation-d0fp8qes │ TEXT │ COMPLETED │ 12     │ 4      │ 16   │
└─────────────────┴──────────────────────┴─────────────────────┴──────┴───────────┴────────┴────────┴──────┘
To open a run: lk agent simulate --view <ID>

Only the first page is shown; older runs stay in the dashboard.

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