Synchronize dungeon map/compass rewards atomically and repair HUD state

[herringms]

Live reproduction

In Jabu-Jabu:

• Host killed the map appendage and opened the map chest.
• Guest saw the chest already open but did not receive the map.
• Guest later opened the compass chest and received both map and compass.
• Host did not receive the compass.
• Guest inventory showed the compass but no minimap icons.

This is a progression blocker because the synchronized open-chest flag can make a missed reward permanently inaccessible.

Required contract

• A durable dungeon-item acquisition is a host-committed event, separate from local chest animation.
• First valid opener grants the canonical map/compass bit to every participant.
• Join/reconnect/full snapshot repairs missing dungeon-item bits when the chest/collectible is already completed.
• Map and compass remain distinct; opening one chest cannot accidentally award the other.
• HUD/minimap visibility derives from the repaired canonical dungeon-item state.

Acceptance

Two real localhost instances alternate opening map and compass chests. Both receive exactly the matching item, both HUDs update, already-open chests heal a deliberately missing reward after snapshot/reconnect, and no duplicate item presentation corrupts gameplay state.

[herringms]

Implementation update (not closing yet):

• Dungeon map and compass are now shared progression items.
• Host accepts guest map/compass acquisition for the reported dungeon index and immediately republishes canonical progression.
• Fixed-layout vanilla and Master Quest dungeon chest tables repair a missing map/compass bit whenever the corresponding chest is already open. Randomizer layouts are intentionally excluded because chest contents are not fixed.
• The repair writes SaveContext.inventory.dungeonItems, which is the same array consumed by the pause map and compass/minimap rendering.
• Policy tests cover Jabu vanilla and MQ map/compass chest flags.

A targeted localhost progression check is being added for the exact host-map/guest-compass sequence. This issue remains open until that integration pass and an in-game HUD check succeed.