[BOUNTY] Port Saving and Loading Hand Labeler Labels from Starlight

[PhosphateWithManyOs]

About the PR

From the original PR:
Adds functionality to the hand labeler allowing labels to be saved to a new saved labels section of its UI. Labels are saved client side to a cvar in client_config to persist forever and remain accessible across all hand labelers.

Why / Balance

From the Original PR:
Currently if you want to use robust labels for your chem jugs you need to copy and paste labels from out of game one at a time. This change eliminates that tedium allowing you to store the labels you want to use in game for future use. In terms of game balance this may slightly reduce how long it takes to finish chems just by the fact itll be faster to use your saved labels than copy and pasting them from out of game.

Technical details

Adds some ccvars from starlight, if requested I can move these over to the base ones or goob's. Functionally all client sided.

Media

2026-01-23.10-45-04.mp4

Requirements

• I have read and am following the Pull Request and Changelog Guidelines.
• I have added media to this PR or it does not require an ingame showcase.

Breaking changes

Changelog

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• add: PORT: Saving and Loading Hand Labeler Labels