chore: bump arcbox version to v0.7.0

[arcbox-labs]

Automated update from arcbox v0.7.0.

[greptile-apps]

Greptile Summary

Updates the bundled ArcBox daemon reference from v0.6.6 to v0.7.0 and synchronizes the generated Swift protobuf client.

• Adds the SystemInfo.distroInitPending protobuf field used by upstream machine-readiness handling.
• Refreshes generated documentation for machine startup, migration retries, and setup readiness semantics.
• Keeps the pinned daemon version and generated protocol sources aligned.

Confidence Score: 5/5

The PR appears safe to merge with no actionable defects identified in the version bump or synchronized generated client changes.

The new protobuf field is generated consistently, existing machine-start calls have a sufficient deadline, and the other RPC changes are documentation-only or have no affected consumer in this repository.

Important Files Changed

Filename	Overview
Packages/ArcBoxClient/Sources/ArcBoxClient/Generated/agent.pb.swift	Adds complete generated serialization, decoding, equality, and name-map support for protobuf field 12, distroInitPending.
Packages/ArcBoxClient/Sources/ArcBoxClient/Generated/api.grpc.swift	Updates generated RunMigration documentation to describe retry attachment and progress replay semantics without changing executable stubs.
Packages/ArcBoxClient/Sources/ArcBoxClient/Generated/api.pb.swift	Clarifies the generated documentation for the networkReady setup phase without changing its wire representation.
Packages/ArcBoxClient/Sources/ArcBoxClient/Generated/machine.grpc.swift	Documents the longer StartMachine readiness contract; the existing app caller uses a compatible 180-second deadline.
arcbox.version	Advances the pinned upstream daemon version to v0.7.0 in sync with regenerated protocol sources.

_{Reviews (1): Last reviewed commit: "chore: bump arcbox version to v0.7.0" | Re-trigger Greptile}