Adds the agent-gigafactory fleet data model (modules/fleet/types.ts): Zod schemas
as the source of truth with inferred types (no `any`) for the 7 durable containers
— FleetJobDoc, FleetRunDoc, FleetLeaseDoc, FleetFactoryDoc, FleetProfileDoc,
FleetEventDoc, FleetArtifactDoc — each carrying productId. Lifecycle stages mirror
the agent-queue gigafactory spec (queued|blocked|assigned|building|review|testing|
shipped|failed|dead_letter). Registers fleet_* containers with their partition keys
(/productId for jobs/factories/profiles, /jobId for runs/leases/events/artifacts).
721d3fcb48