Terminal Rendering Refactoring

The terminal rendering system underwent significant optimization:

1. Removed OSC 133 Terminal Integration: The shell integration sequences (OSC 133) that were used for marking prompts and command boundaries have been completely removed. This includes:

• Prompt start/end markers (\x1B]133;A\x07, \x1B]133;B\x07)
• Command markers (\x1B]133;C\x07, \x1B]133;D\x07)
• Bracketed paste mode sequences (\x1B[?2026h, \x1B[?2026l)

1. Simplified Render Buffer Class: The yy class (now uy) has been streamlined:

• Removed startOscPrompt and endOscPrompt parameters
• Simplified constructor to only take width and height
• More efficient output generation using map/join instead of manual string concatenation

1. Cleaner Output Handling: The main renderer class (Nn → gn) now:

• No longer tracks or strips OSC sequences from output
• Simplified terminal clearing logic
• More direct output writing without intermediate processing