fix: Fix deepnote notebook deserializer and file change watcher#363

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tkislan wants to merge 8 commits intomainfrom

tk/fix-project-notebook-picker

Commits on Mar 18, 2026

Commits on Mar 19, 2026

Commits on Mar 20, 2026

Improve error handling in DeepnoteFileChangeWatcher to prevent stale mtime conflicts during workspace saves
tkislan
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Add unit tests for DeepnoteFileChangeWatcher to handle scenarios without block IDs and implement a valid project structure for testing
tkislan
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Format code
tkislan
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