CommandBridge

this update is mostly about migration tooling, better player resolution, and support/debug quality of life. also had some internal cleanup and an important fix for velocity running in client mode.

so whats new:

• added /cb dump for support snapshots (sanitized upload + local file export)
• added /cb migrate to migrate script files to the current schema
• migration is script-only now. there was a short config migration path but that got reverted again
• added player-arg per command for target-required and schedule-online
• added remote uuid resolving between connected proxies (RESOLVE_UUID) + local UserCache + Mojang fallback
• added OFFLINE_PLAYER argument type with suggestions support
• reworked schedule-online / player tracking flow to be more reliable and added clearer warning logs when player resolution fails
• fixed double command descriptions in command registration output
• fixed velocity client mode startup crash (ClassNotFoundException: org.bukkit.command.CommandSender)

breaking changes:

• scripts now require version: 4
• older scripts must be migrated first
• internal runtime files moved into the data/ subdirectory

latest commit: e951a9e