Isherwood's pigs spawning outside of their building

Nobody has claimed this yet.

### Describe the bug

Sometimes a lone pig spawns outside of the building where it's supposed to appear.

### Attach save file

[New Home-trimmed.tar.gz](https://github.com/user-attachments/files/29166873/New.Home-trimmed.tar.gz)

### Steps to reproduce

1. Load the save file.
2. Teleport or travel to the north with the Isherwoods.
3. See the barn (?) where the animals are, just to the side of where Jack is.
4. Search for the pigs, one can sometimes be seen just outside its designated building.
5. You did not find it? Reload the save until it appears.

### Expected behavior

For the pig to remain inside?

### Screenshots

### Versions and configuration

- OS: Android
- OS Version: Manufacturer: samsung; Model: SM-A525M; Release: 14; Incremental: A525MUBSCFYF1;
- Game Version: cdda-experimental-2026-06-17-2219 788be45-dirty+SDL3 [64-bit]
- Graphics Version: Tiles
- Game Language: English [en]
- Mods loaded: [
Dark Days Ahead [dda],
Disable NPC Needs [no_npc_food],
Portal Storms Ignore NPCs [personal_portal_storms],
Bombastic Perks [bombastic_perks],
Mythical Martial Arts [MMA],
Translate Complex Dialogue [translate_dialogue],
Tamable Wildlife [Tamable_Wildlife]
]

### Additional context

I believe this is a problem with the zone designated for the pigs spawn, it should be an easy fix.

Start by loading the attached New Home-trimmed.tar.gz save file and reproducing the Isherwood pig placement near the barn, reloading as needed. Trace the zone designated for the pigs' spawn and identify why one can appear outside the building; done means the pig remains inside during repeated reproduction attempts.

Written by the indexing model from the issue text.