feat(pocket-base): start flying on flight portal entry

README.md

@@ -49,7 +49,7 @@ After 250 Survival-mode block placements anywhere by default, the spawnable over
 
 `/base` has a stationary warm-up. Looking around is allowed, while movement between blocks, damage, teleportation, world changes, death, logout, and conflicting teleport commands cancel it without consuming the cooldown.
 
-Base IV owners can purchase and expand a persistent Pocket Base with `/basesettings pocket upgrade`. Activating a complete diamond-block portal frame inside the normal base with flint and steel opens one public entrance to the owner's grass platform in a private void world. Players and non-player living mobs can travel through the entrance and active return portal; items, projectiles, and vehicles are not transported. The owner can move the return portal by building and igniting another complete frame inside the unlocked Pocket Base boundary; only the newly activated return portal remains functional. Natural hostile and passive mob spawning is disabled by default. Owners can control each category independently with `/basesettings pocket mobs <hostile|passive> <enable|disable>`. An owner who wins a raid inside their own Pocket Base permanently unlocks owner-only Survival flight across the full build height and within the current Pocket Base boundary plus a 16-block warning buffer on every side. The owner can control that automatic privilege with `/basesettings pocket flight <enable|disable>`. After the raid unlock, the owner can ignite a complete gold-block portal frame inside the unlocked boundary; any player who passes through receives temporary flight within the same boundary and buffer until leaving the Pocket Base. The owner's automatic-flight preference does not affect portal-granted flight.
+Base IV owners can purchase and expand a persistent Pocket Base with `/basesettings pocket upgrade`. Activating a complete diamond-block portal frame inside the normal base with flint and steel opens one public entrance to the owner's grass platform in a private void world. Players and non-player living mobs can travel through the entrance and active return portal; items, projectiles, and vehicles are not transported. The owner can move the return portal by building and igniting another complete frame inside the unlocked Pocket Base boundary; only the newly activated return portal remains functional. Natural hostile and passive mob spawning is disabled by default. Owners can control each category independently with `/basesettings pocket mobs <hostile|passive> <enable|disable>`. An owner who wins a raid inside their own Pocket Base permanently unlocks owner-only Survival flight across the full build height and within the current Pocket Base boundary plus a 16-block warning buffer on every side. The owner can control that automatic privilege with `/basesettings pocket flight <enable|disable>`. After the raid unlock, the owner can ignite a complete gold-block portal frame inside the unlocked boundary; any Survival player who passes through receives temporary flight within the same boundary and buffer until leaving the Pocket Base. Entering the flight portal immediately starts the player flying and displays “Pocket dimension flight enabled!” once, without repeating while they stand inside the portal. The owner's automatic-flight preference does not affect portal-granted flight.
 
 Pocket Base owners can also craft a reusable **Pocket Base Keystone**. Its shaped recipe uses an Ender Pearl in the center, Netherite Ingots on the four cardinal slots, and Obsidian in the four corners. Right-clicking the keystone outside a Pocket Base instantly records the player's location and takes them to their own Pocket Base. Right-clicking it again inside their own Pocket Base returns them to that exact location when the world and destination remain available and safe. Saved returns survive reconnects and server restarts. A transferred keystone only works for a player who has unlocked their own Pocket Base.