style(deps): migrated from Prettier to Biome and updated formatting rules

- Removed Prettier configuration files (.prettierignore and .prettierrc) and migrated formatting to Biome.
- Updated Biome configuration from version 2.3.11 to 2.3.12 and changed arrowParentheses rule from 'always' to 'asNeeded'.
- Pinned @biomejs/biome dependency to exact version 2.3.12 in package.json and bun.lock.
- Applied consistent arrow function formatting across 489 files by removing unnecessary parentheses around single parameters.
- Removed blank lines after comment blocks and reorganized imports for consistency across the codebase.

packages/coding-agent/src/cli/update-cli.ts

@@ -4,7 +4,6 @@
  * Handles `omp update` to check for and install updates.
  * Uses bun if available, otherwise downloads binary from GitHub releases.
  */
-
 import { execSync, spawnSync } from "node:child_process";
 import * as fs from "node:fs";
 import * as path from "node:path";
@@ -74,7 +73,7 @@ async function getLatestRelease(): Promise<ReleaseInfo> {
 	return {
 		tag: data.tag_name,
 		version: data.tag_name.replace(/^v/, ""),
-		assets: data.assets.map((a) => ({ name: a.name, url: a.browser_download_url })),
+		assets: data.assets.map(a => ({ name: a.name, url: a.browser_download_url })),
 	};
 }
 
@@ -155,7 +154,7 @@ async function updateViaBun(): Promise<void> {
  */
 async function updateViaBinary(release: ReleaseInfo): Promise<void> {
 	const binaryName = getBinaryName();
-	const asset = release.assets.find((a) => a.name === binaryName);
+	const asset = release.assets.find(a => a.name === binaryName);
 
 	if (!asset) {
 		throw new Error(`No binary found for ${binaryName}`);