fix: Custom Livery for heads to match departments

[OH296]

as reported here https://discord.com/channels/714022226810372107/1317251464242135132/1321969505575895040 custom livery for department heads is wrong

Summary by Sourcery

Bug Fixes:

• Fixed an issue where heads did not have the correct livery.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request updates the setup_complex_livery_shader function to apply custom liveries to character heads based on their department, such as Apothecary, Techmarine, Librarian, and Chaplain. It uses the is_specialist function to check for these specific roles and assigns the corresponding livery from the obj_ini.full_liveries array. If no specialist role is found, it defaults to the existing logic of iterating through the obj_ini.role array.

File-Level Changes

Change	Details	Files
Added custom livery support for character heads based on department.	Added conditional checks for specialist roles like Apothecary, Techmarine, Librarian, and Chaplain within the setup_complex_livery_shader function. Used is_specialist function to determine the character's department. Assigned specific liveries from obj_ini.full_liveries based on the identified department. Preserved the original logic for non-specialist roles using the obj_ini.role array as a fallback. Added local variables _full_liveries and _roles for readability and efficiency.	scripts/scr_complex_colour_kit/scr_complex_colour_kit.gml

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[sourcery-ai]

Hey @OH296 - I've reviewed your changes - here's some feedback:

Overall Comments:

• Consider using constants or enums instead of magic strings ('apoth', 'forge', etc.) for specialist role checks to improve maintainability and prevent typo-related bugs

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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