Add WIP Quest 1408 automation with instance disambiguation

[eyjafjallascomb]

What:

• Adds initial Quest 1408 sequence (Accept → teleport via NPC → interact 4 chests using quest item → exit instance → Complete).
• Kept Disabled: true and marked as WIP.

Rationale / Notes:

• Teleport NPC is shared with another daily quest (e.g. 1407). Since the Yes/No prompt text id is not available, the script disambiguates by checking the post-teleport landing position and intentionally stalls with a user-facing message if teleported into the wrong quest instance.
• Spawned enemies during chest interactions are treated as blockers only (do not affect quest progress), so no enemy IDs are modeled.

Testing:

• Not fully end-to-end tested locally since the quest was already completed at the time of writing.
• Coordinates and DataIds were recorded during the active quest run.
• Please test when 1408 is available again; especially the wrong-instance stall behavior when 1407 and 1408 coexist.