fix(tui): expand paste markers when opening external editor (#444)

* fix(tui): expand paste markers when opening external editor

Add getExpandedText() method to Editor that substitutes paste markers
with actual content. Use it in Ctrl-G external editor flow so users
see full pasted content instead of [paste #N ...] placeholders.

* docs: add changelog entries for #444

packages/coding-agent/CHANGELOG.md

@@ -1,9 +1,11 @@
 # Changelog
 
 ## [Unreleased]
+
 ### Fixed
 
 - Fixed potential text decoding issues in bash executor by using streaming TextDecoder instead of Buffer.toString()
+- External editor (Ctrl-G) now shows full pasted content instead of `[paste #N ...]` placeholders ([#444](https://github.com/badlogic/pi-mono/pull/444) by [@aliou](https://github.com/aliou))
 
 ## [0.33.0] - 2026-01-04
 

packages/coding-agent/src/modes/interactive/interactive-mode.ts

@@ -1627,7 +1627,7 @@ export class InteractiveMode {
 			return;
 		}
 
-		const currentText = this.editor.getText();
+		const currentText = this.editor.getExpandedText();
 		const tmpFile = path.join(os.tmpdir(), `pi-editor-${Date.now()}.pi.md`);
 
 		try {