Release v3.29.1 (#8854)

chore: add changeset for v3.29.1

Author: mrubens

.changeset/v3.29.1.md

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+---
+"roo-cline": patch
+---
+
+![3.29.1 Release - Window Cleaning](/releases/3.29.1-release.png)
+
+- Fix: Clean up max output token calculations to prevent context window overruns (#8821 by @enerage, PR by @roomote)
+- Fix: Change Add to Context keybinding to avoid Redo conflict (#8652 by @swythan, PR by @roomote)
+- Fix provider model loading race conditions (thanks @mrubens!)