refactor(deps): remove strip-ansi dependency, use Bun.stripANSI

Remove strip-ansi from dependencies as Bun provides stripANSI natively.
Update E2E tests to use Bun.stripANSI instead of custom bunStripANSI function.
Fix minor formatting issue in package.json.

Reduces bundle size and simplifies code by leveraging Bun's built-in functionality.

Author: MBanucu

bun.lock

@@ -89,7 +89,6 @@
     "@opencode-ai/sdk": "1.1.47",
     "bun-pty": "^0.4.8",
     "moment": "^2.30.1",
-    "open": "^11.0.0",
-    "strip-ansi": "^7.1.2"
+    "open": "^11.0.0"
   }
-}
+}

package.json

@@ -1,5 +1,4 @@
 import {
-  bunStripANSI,
   getTerminalPlainText,
   getSerializedContentByXtermSerializeAddon,
   waitForTerminalRegex,
@@ -35,7 +34,7 @@ extendedTest(
 
     // PRIMARY: SerializeAddon (robust extraction)
     const serializeContent = await getSerializedContentByXtermSerializeAddon(page)
-    const serializeStrippedContent = bunStripANSI(serializeContent).split('\n')
+    const serializeStrippedContent = Bun.stripANSI(serializeContent).split('\n')
 
     // API
     const plainData = await api.session.buffer.plain({ id: session.id })

test/e2e/extraction-methods-echo-prompt-match.pw.ts

@@ -2,7 +2,6 @@ import { test as extendedTest, expect } from './fixtures'
 import {
   waitForTerminalRegex,
   getSerializedContentByXtermSerializeAddon,
-  bunStripANSI,
 } from './xterm-test-helpers'
 
 extendedTest.describe('Xterm Newline Handling', () => {
@@ -39,8 +38,8 @@ extendedTest.describe('Xterm Newline Handling', () => {
     })
 
     // Use robust character counting
-    const cleanBefore = bunStripANSI(beforeContent)
-    const cleanAfter = bunStripANSI(afterContent)
+    const cleanBefore = Bun.stripANSI(beforeContent)
+    const cleanAfter = Bun.stripANSI(afterContent)
     const beforeCount = (cleanBefore.match(/a/g) || []).length
     const afterCount = (cleanAfter.match(/a/g) || []).length
     expect(afterCount - beforeCount).toBe(1)
@@ -77,7 +76,7 @@ extendedTest.describe('Xterm Newline Handling', () => {
     await waitForTerminalRegex(page, /Hello World/)
 
     // Get final terminal buffer via SerializeAddon (canonical, robust method)
-    const finalBuffer = bunStripANSI(
+    const finalBuffer = Bun.stripANSI(
       await getSerializedContentByXtermSerializeAddon(page, {
         excludeModes: true,
         excludeAltBuffer: true,

test/e2e/newline-verification.pw.ts

@@ -1,5 +1,4 @@
 import {
-  bunStripANSI,
   getSerializedContentByXtermSerializeAddon,
   waitForTerminalRegex,
 } from './xterm-test-helpers'
@@ -29,7 +28,7 @@ extendedTest.describe(
         await waitForTerminalRegex(page, /More text/)
 
         // Extraction methods
-        const serializeStrippedContent = bunStripANSI(
+        const serializeStrippedContent = Bun.stripANSI(
           await getSerializedContentByXtermSerializeAddon(page)
         ).split('\n')
         const plainData = await api.session.buffer.plain({ id: session.id })

test/e2e/visual-verification-dom-vs-serialize-vs-plain.pw.ts

@@ -1,6 +1,5 @@
 import type { Page } from '@playwright/test'
 import type { SerializeAddon } from '@xterm/addon-serialize'
-import stripAnsi from 'strip-ansi'
 
 // Global module augmentation for E2E testing
 declare global {
@@ -10,22 +9,6 @@ declare global {
   }
 }
 
-// Use Bun.stripANSI if available, otherwise fallback to npm strip-ansi
-let bunStripANSI: (str: string) => string
-try {
-  if (typeof Bun !== 'undefined' && Bun.stripANSI) {
-    bunStripANSI = Bun.stripANSI
-  } else {
-    // Note: dynamic import only relevant in Bun, for typing only in Node
-    const bunModule = await import('bun')
-    bunStripANSI = bunModule.stripANSI
-  }
-} catch {
-  bunStripANSI = stripAnsi
-}
-
-export { bunStripANSI }
-
 /**
  * Deprecated: Use getSerializedContentByXtermSerializeAddon for all terminal content extraction in E2E tests.
  * This DOM scraping method should only be used for rare visual/manual cross-checks or debugging.