Function analyzeOpenDocuments

analyzeOpenDocuments(): DocumentAnalysisResult
Analyzes ALL open documents (notebooks AND lexicals) in VS Code workspace.

ULTRA SMART DETECTION:
- Checks vscode.window.tabGroups to get ALL open documents including custom editors
- Distinguishes native VS Code notebooks from Datalayer local documents
- Detects cloud Datalayer documents (notebooks + lexicals) via datalayer:// URI scheme
- Includes lexical documents in the analysis for complete context
Returns DocumentAnalysisResult
Complete analysis of all open documents with categorization
- Defined in src/utils/documentAnalysis.ts:42