Many, many, many items have inhand sprites in their .dmis but for
whatever reasons do not display them in-game. This PR:
1. Updates many item definitions to point to their already-existing
inhands correctly. This consists largely of held tools, but also gas
tanks and jetpacks mounted in the suit storage slot.
2. Adds a few codersprites made by me for objects with either missing
inhands or poorly matching mishands (IE, the tape recorder, which has a
black case, reused the white inhand sprites of the health analyzer). The
new sprites are modified or recolored variations of other inhand sprites
from our repo, except for circuitboards which are new.
<img width="444" height="400" alt="image"
src="https://github.com/user-attachments/assets/7f107b9a-fe24-4e31-8f16-4d34768ee117"
/>
3. Adds inhand sprites for Inflatables and Inflatable Boxes made by
Tomixcomics.
<img width="424" height="101" alt="image"
src="https://github.com/user-attachments/assets/434107c4-8577-49a2-a58e-d6b014c03933"
/>
4. Ports inhand sprites for the Hydraulic Rescue Tool from tg's Jaws of
Life.
<img width="224" height="94" alt="Screenshot 2026-02-07 172931"
src="https://github.com/user-attachments/assets/070c7956-f6a8-4fb5-870f-10c64afcc8b3"
/>
5. Some additional cleanup while in the area. The 'analyzer' has been
renamed the 'gas analyzer' to be consistent with the other analyzer
objects, standardized icon_state naming conventions where I saw
oddballs, updated code docs to use DMDocs when in the area, etc.
### Asset Licenses
The following assets that **have not** been created by myself are
included in this PR:
| Path | Original Author | License |
| --- | --- | --- |
| icons/obj/item/hydraulic_rescue_tool.dmi | [SomeAngryMiner (bee
station)](https://github.com/BeeStation/BeeStation-Hornet/pull/2487),
[maxymax
(/tg/station)](https://github.com/tgstation/tgstation/pull/58616) |
CC-BY-SA |
| icons/obj/item/inflatables.dmi |
[Tomixcomics](https://github.com/tomixcomics) | CC-BY-SA |
Refactored hitby to be in line with TG's version.
Refactored item weight defines to a more clear naming scheme, also in
line with TG's version.
Refactored how the movement bumps are handled, ported signals to handle
them, in preparation for the movement update.
Fixed disposal hit bouncing the hitting atom on the wall.
Items do not push other items anymore if they are tiny.
The AI can now remotely control mechs in its network. It has one mapped in near its core.
Messages received by your old body will now reach your VR body (does not affect Skrell Srom).
Exosuit pilots can now interact with elevator panels without having to get out.
Robotics and RnD can now create remote controlled mechs. The control centre is in the protolathe, while the exosuit upgrade is in the circuit imprinter.
Mechs can no longer be dismantled if it has a pilot in it.
Dismantling a mech now takes a while.
