Restore server-affine offline reward replay

[BenCodez]

What changed

• Stop forcing normal offline reward replay and restore the default requeue behavior.
• Preserve forceRunOfflineRewards() as the explicit administrative bypass.
• Add regression tests for both normal and forced replay options, including preservation of the stored Server placeholder.

Root cause

Commit 0df8cc6e added setGiveOffline(false).forceOffline() to normal checkOfflineRewards() processing while refactoring login checks. That bypassed the injected Server requirement and prevented mismatched rewards from being requeued for their originating backend.

VotingPlugin already calls setServer(true) for proxy-delivered backend rewards. With this change, normal replay once again allows a server mismatch to fail with allowReattempt() and remain queued until the player reaches the matching backend.

Validation

• Added unit coverage asserting normal replay uses forceOffline=false, giveOffline=true, and preserves Server.
• Added coverage asserting the explicit force-run path still uses forceOffline=true and giveOffline=false.
• Local Maven execution was unavailable in the agent environment because Maven is not installed; CI should run the suite.