Synchronize ranked Rumble inputs

[flemming-n-larsen]

Summary

• resolve wellknown/rumble.json canonical repository moves through isolated shallow Git checkouts
• validate the engine pin, synchronized catalog source, registered client identity, and selected game-type matchmaking advice as one immutable snapshot
• add --sync, preserve existing schema-1 configuration compatibility, and document the optional work directory

Acceptance evidence

• RCL-002 positive: canonical move resolution and a complete mutually consistent snapshot
• RCL-002 negative: unknown advice schema, unregistered identity, and catalog source from another bot repository are rejected
• ./gradlew clean build
• live read-only sync against robocode-dev/rumble-data revision 6010f28afaa7e83fdadce7231c22b87d3b580670: behavior version 1, one active bot, advice for all three V1 game types

Part of robocode-dev/tank-royale CH-012 / P-003 M-008.