Optimize updateDocument() calls across the codebase to pass only changed
attributes as sparse Document objects rather than full documents. This is
more efficient because updateDocument() internally performs array_merge().
Changes:
- Updated 58 files to use sparse Document objects
- Added Performance Patterns section to AGENTS.md with optimization guidelines
- Applied pattern to Workers, Functions, Sites, Teams, VCS modules
- Updated app/controllers/api files (account, users, messaging)
- Updated app infrastructure files (realtime, general, init/resources, shared/api)
Exceptions maintained:
- Migration files (need full document updates by design)
- Cases with 6+ attributes (marginal benefit)
- Complex nested relationship logic