chore: biome formatter pass + stable React keys in PixelC

Required for prepublishOnly to clear lint. PixelC's row keys now use
named ids (top/mid-1/mid-2/mid-3/bot) instead of the array index,
since the three repeating FILL rows aren't distinguishable by content.

Author: halfaipg

biome.json

@@ -24,11 +24,6 @@
 		"lineWidth": 120
 	},
 	"files": {
-		"includes": [
-			"src/**/*.ts",
-			"src/**/*.tsx",
-			"!**/node_modules/**/*",
-			"!**/dist/**/*"
-		]
+		"includes": ["src/**/*.ts", "src/**/*.tsx", "!**/node_modules/**/*", "!**/dist/**/*"]
 	}
 }

src/ui/Input.tsx

@@ -1,5 +1,6 @@
 import { Box, Text, useInput } from "ink";
 import { useMemo, useRef, useState } from "react";
+import { logInputEvent } from "./debug-input.js";
 import {
 	backspace,
 	deleteForward,
@@ -15,7 +16,6 @@ import {
 	undo,
 	yank,
 } from "./input-state.js";
-import { logInputEvent } from "./debug-input.js";
 import { completePath, findAtTokenAt } from "./path-complete.js";
 
 export interface SlashCommandSuggestion {

src/ui/PixelC.tsx

@@ -14,20 +14,24 @@ interface PixelCProps {
 	color?: string;
 }
 
-const ROWS: readonly string[] = [
-	`${GAP}${FILL}${FILL}${FILL}`,
-	FILL,
-	FILL,
-	FILL,
-	`${GAP}${FILL}${FILL}${FILL}`,
+// Row id doubles as the React key. Names describe the C shape so the
+// keys are stable regardless of order (biome's array-index-as-key rule
+// is right in general — but here the rows aren't unique by content
+// (the three FILL rows repeat), so we lean on positional ids).
+const ROWS: readonly { id: string; text: string }[] = [
+	{ id: "top", text: `${GAP}${FILL}${FILL}${FILL}` },
+	{ id: "mid-1", text: FILL },
+	{ id: "mid-2", text: FILL },
+	{ id: "mid-3", text: FILL },
+	{ id: "bot", text: `${GAP}${FILL}${FILL}${FILL}` },
 ];
 
 export function PixelC({ color = "cyan" }: PixelCProps) {
 	return (
 		<Box flexDirection="column">
-			{ROWS.map((text, i) => (
-				<Text key={`pixc-${i}`} bold color={color}>
-					{text}
+			{ROWS.map((row) => (
+				<Text key={row.id} bold color={color}>
+					{row.text}
 				</Text>
 			))}
 		</Box>

src/ui/terminal-restore.ts

@@ -71,7 +71,9 @@ export function installTerminalRestoreHandlers(instance?: Instance): void {
 	});
 	process.on("uncaughtException", (err) => {
 		restore();
-		process.stderr.write(`\nuncaught exception: ${err instanceof Error ? err.stack ?? err.message : String(err)}\n`);
+		process.stderr.write(
+			`\nuncaught exception: ${err instanceof Error ? (err.stack ?? err.message) : String(err)}\n`,
+		);
 		process.exit(1);
 	});
 	process.on("unhandledRejection", (reason) => {