Fix image rendering artifacts and improve show-images selector

- Image component returns correct number of lines (rows) for TUI accounting
- Empty lines rendered first, then cursor moves up and image is drawn
- This clears the space the image occupies before rendering
- Add spacer before inline images in tool output
- Create ShowImagesSelectorComponent with borders like other selectors
- Use showSelector pattern for /show-images command

packages/coding-agent/src/modes/interactive/components/show-images-selector.ts

@@ -0,0 +1,45 @@
+import { Container, type SelectItem, SelectList } from "@mariozechner/pi-tui";
+import { getSelectListTheme } from "../theme/theme.js";
+import { DynamicBorder } from "./dynamic-border.js";
+
+/**
+ * Component that renders a show images selector with borders
+ */
+export class ShowImagesSelectorComponent extends Container {
+	private selectList: SelectList;
+
+	constructor(currentValue: boolean, onSelect: (show: boolean) => void, onCancel: () => void) {
+		super();
+
+		const items: SelectItem[] = [
+			{ value: "yes", label: "Yes", description: "Show images inline in terminal" },
+			{ value: "no", label: "No", description: "Show text placeholder instead" },
+		];
+
+		// Add top border
+		this.addChild(new DynamicBorder());
+
+		// Create selector
+		this.selectList = new SelectList(items, 5, getSelectListTheme());
+
+		// Preselect current value
+		this.selectList.setSelectedIndex(currentValue ? 0 : 1);
+
+		this.selectList.onSelect = (item) => {
+			onSelect(item.value === "yes");
+		};
+
+		this.selectList.onCancel = () => {
+			onCancel();
+		};
+
+		this.addChild(this.selectList);
+
+		// Add bottom border
+		this.addChild(new DynamicBorder());
+	}
+
+	getSelectList(): SelectList {
+		return this.selectList;
+	}
+}

packages/coding-agent/src/modes/interactive/components/tool-execution.ts

@@ -107,6 +107,7 @@ export class ToolExecutionComponent extends Container {
 			for (const img of imageBlocks) {
 				// Show inline image only if terminal supports it AND user setting allows it
 				if (caps.images && this.showImages && img.data && img.mimeType) {
+					this.addChild(new Spacer(1));
 					const imageComponent = new Image(
 						img.data,
 						img.mimeType,