fix: Add collaboratorIds field to document creation

Outline requires collaboratorIds to be an array, not NULL.
Error was: "TypeError: b.collaboratorIds is not iterable"

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -2,6 +2,14 @@
 
 All notable changes to this project will be documented in this file.
 
+## [1.3.11] - 2026-01-31
+
+### Fixed
+
+- **Document collaboratorIds:** Added missing `collaboratorIds` field (empty array)
+  - Error: `TypeError: b.collaboratorIds is not iterable`
+  - Outline expects this field to be an array, not NULL
+
 ## [1.3.10] - 2026-01-31
 
 ### Fixed