[Bug] Ships with long sets of InternalRooms overlap stats, buttons on Eng/Eng+

Issue

Ships with 15+ total units of width or more in InternalRooms overflow the ship stats k/vs on Engineering, and can overlap self-destruct controls and be overlapped by the shield calibration controls on Engineering+.

Steps to reproduce

1. Launch EE as a server into any scenario, with a 4:3 view aspect ratio (default windowed).
2. From the ship selection screen, add an Ender.
3. Join the Engineering+ screen.

Expected behavior

Either:

• The ship diagram scales to not overlap the left-side UI elements.
• The ship diagram is within a scrolling container.
• The ship diagram instead encroaches on the right side, which could conflict with custom function controls.
• EE warns or errors on ship templates with room definitions that exceed 14-15 total units in width.

Observed behavior

The Ender has rooms from coords 0 to 16 (FrontShield's origin is at coord 14 with width 2). It's the only affected ship in the repo.

Start by reproducing the issue in Engineering+ with an Ender ship, a 4:3 view, and its wide InternalRooms layout. Inspect how the ship diagram relates to the left-side stats and controls; done means the diagram no longer overlaps those controls, or the selected scrolling, encroachment, or validation behavior is implemented.