Update camera status and coverage on de/reconstruction

[pgmzeta]

[bug][balance][game objects][station systems]

About the PR

• Implement the to/from frame procs on cameras to update status and refresh camera coverage.
• Update the emp_act proc to ensure it updates camera active/coverage consistently while we're here.

This implementation results in some game balance changes, notably:

• Removed cameras show as (deactivated), so antagonists removing a camera have a higher chance to be discovered.
• Viewers cannot tell whether a deactivated camera is broken or deconstructed, requiring investigation to confirm.

Why's this needed?

Fixes #18186

Test Plan

• Viewers are disconnected when the camera is deconstructed
• AI sees static when camera is deconstructed
• Camera is usable after being constructed
• AI gains sight when camera is constructed

Changelog

(u)glowbold
(*)Deconstructed cameras now show as "Deactivated" instead of disappearing from the camera list.