feat: implement `grind_annotated` command

- Add syntax declaration in Init/Grind/Annotated.lean
- Add elaborator with YYYY-MM-DD date validation in Lean/Elab/Tactic/Grind/Annotated.lean
- Add SimplePersistentEnvExtension to track grind-annotated modules
- Add filterGrindAnnotated wrapper for Selector
- Apply filter to sineQuaNonSelector in default library suggestions
- Set caller field to "grind" when grind tactic calls LibrarySuggestions
10 files changed