⚖️ Balance

• Flags face each other — every battle now seats the two islands flag row to flag row. Before this fix, a board grown out to one side pushed the enemy sideways, away from your flag.

🔧 Fixes

• Battle preview — the opponent's island now docks on the row the fight will actually start on, in the pre-battle preview and the campaign builder.
• Path arrows — on a practice preview against the larger islands, the red arrows pointed away from the fight. They now head for the front.