fix: guard against undefined lineInfo crash

package.json

@@ -43,13 +43,16 @@
     "dist/"
   ],
   "dependencies": {
-    "@opentui/core": "^0.1.81",
-    "ghostty-opentui": "^1.4.3"
+    "@opentui/core": "^0.1.88",
+    "ghostty-opentui": "^1.4.7"
   },
   "devDependencies": {
     "@biomejs/biome": "^2.4.4",
     "@commitlint/cli": "^20.4.2",
     "@commitlint/config-conventional": "^20.4.2",
     "@types/bun": "^1.3.9"
+  },
+  "patchedDependencies": {
+    "[email protected]": "patches/[email protected]"
   }
 }

patches/ghostty-opentui@1.4.7.patch

@@ -0,0 +1,26 @@
+diff --git a/src/terminal-buffer.ts b/src/terminal-buffer.ts
+index 818145199154a290083de72f87a69ecbc2acd167..5dac6238d07492af38da5412382472d8d670e1d1 100644
+--- a/src/terminal-buffer.ts
++++ b/src/terminal-buffer.ts
+@@ -585,7 +585,9 @@ export class GhosttyTerminalRenderable extends TextBufferRenderable {
+
+       // Update line count based on actual rendered lines
+       const lineInfo = this.textBufferView.logicalLineInfo
+-      this._lineCount = lineInfo.lineStarts.length
++      if (lineInfo) {
++        this._lineCount = lineInfo.lineStarts.length
++      }
+
+       this._ansiDirty = false
+     }
+@@ -613,8 +615,8 @@ export class GhosttyTerminalRenderable extends TextBufferRenderable {
+     // Get the line info which contains actual Y offsets for each line
+     // This accounts for wrapping and actual text layout
+     const lineInfo = this.textBufferView.logicalLineInfo
+-    const lineStarts = lineInfo.lineStarts
+-    
++    const lineStarts = lineInfo?.lineStarts
++
+     // If we have line start info, use it; otherwise fall back to simple calculation
+     let lineYOffset = clampedLine
+     if (lineStarts && lineStarts.length > clampedLine) {

src/utils/shutdown.ts

@@ -23,8 +23,8 @@ export function setupShutdownHandlers(app: App, logWriter?: LogWriter): void {
 	process.on('SIGTERM', shutdown)
 	process.on('uncaughtException', err => {
 		log('Uncaught exception:', err?.message ?? err)
-		process.stderr.write(`numux: unexpected error: ${err?.stack ?? err}\n`)
 		app.shutdown().finally(() => {
+			process.stderr.write(`numux: unexpected error: ${err?.stack ?? err}\n`)
 			logWriter?.cleanup()
 			process.exit(1)
 		})
@@ -33,8 +33,8 @@ export function setupShutdownHandlers(app: App, logWriter?: LogWriter): void {
 	process.on('unhandledRejection', (reason: unknown) => {
 		const message = reason instanceof Error ? reason.message : String(reason)
 		log('Unhandled rejection:', message)
-		process.stderr.write(`numux: unhandled rejection: ${message}\n`)
 		app.shutdown().finally(() => {
+			process.stderr.write(`numux: unhandled rejection: ${message}\n`)
 			logWriter?.cleanup()
 			process.exit(1)
 		})