fix(tui): preserve WezTerm Kitty images on full redraw

Reserve visible Kitty image rows before drawing placements in full redraws, while preserving the first-row path for taller-than-viewport images so #4415 stays fixed.

Closes #5618.

packages/tui/src/tui.ts

@@ -1244,7 +1244,20 @@ export class TUI extends Container {
 			}
 			for (let i = 0; i < newLines.length; i++) {
 				if (i > 0) buffer += "\r\n";
-				buffer += newLines[i];
+				const line = newLines[i];
+				const isImage = isImageLine(line);
+				const imageReservedRows = isImage ? this.getKittyImageReservedRows(newLines, i) : 1;
+				if (imageReservedRows > 1 && imageReservedRows <= height) {
+					for (let row = 1; row < imageReservedRows; row++) {
+						buffer += "\r\n";
+					}
+					buffer += `\x1b[${imageReservedRows - 1}A`;
+					buffer += line;
+					buffer += `\x1b[${imageReservedRows - 1}B`;
+					i += imageReservedRows - 1;
+					continue;
+				}
+				buffer += line;
 			}
 			buffer += "\x1b[?2026l"; // End synchronized output
 			this.terminal.write(buffer);