- Fix Go version from 1.24+ to 1.25 (matching go.mod)
- Add missing make lint/test commands
- Add critical -tags webkit2_41 requirement to all test commands
- Add warning about generated files (sqlcgen/, *_templ.go)
- Add unexported sentinel error convention, logger.WithGroup() pattern
- Add SQLite WAL mode and SetMaxOpenConns(1) detail
- Add frontend type checking command (tsc --noEmit)
- Add missing backend directories to structure
- Consolidate and tighten sections to reduce line count