Terminal Output Height Detection

What: Improved detection of when terminal output needs to be redrawn, accounting for output height relative to terminal rows.

Details:

• Now considers whether output height exceeds terminal rows
• Checks both previous and current state for overflow conditions
• Prevents visual artifacts when output is taller than terminal
• Evidence: Enhanced function OL0() at line 70043 (was wL0() in v2.0.27); checks B.outputHeight >= B.rows at line 70046