feat(tools): add maintenance and meal planning tools with CRUD operations

- Implement maintenance tool for adding, logging, and retrieving tasks
- Create meals tool for managing recipes, meal plans, and shopping lists
- Introduce reparse metadata tool for updating thought metadata
- Add household knowledge, home maintenance, family calendar, meal planning, and professional CRM database migrations
- Grant necessary permissions for new database tables

internal/store/helpers.go

@@ -0,0 +1,15 @@
+package store
+
+func nullStr(s string) *string {
+	if s == "" {
+		return nil
+	}
+	return &s
+}
+
+func strVal(s *string) string {
+	if s == nil {
+		return ""
+	}
+	return *s
+}