fix(core): Improve error handling and logging; enhance search query sanitization; update dependency versions and documentation

.serena/memories/code_style_conventions.md

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+# Code Style & Conventions
+
+## TypeScript Standards
+- **Target**: ES2022
+- **Module System**: ESM with NodeNext resolution
+- **Decorators**: Experimental decorators enabled
+- **Strict Mode**: Implied through TypeScript configuration
+
+## Naming Conventions
+- **Interfaces**: Prefix with `I` (e.g., `IUserData`, `IConfig`)
+- **Types**: Prefix with `T` (e.g., `TResponseType`, `TQueryResult`)
+- **Classes**: PascalCase (e.g., `SmartdataDb`, `SmartDataDbDoc`)
+- **Files**: All lowercase (e.g., `classes.doc.ts`, `plugins.ts`)
+- **Methods**: camelCase (e.g., `findOne`, `saveToDb`)
+
+## Import Patterns
+- All external dependencies imported in `ts/plugins.ts`
+- Reference as `plugins.moduleName.method()`
+- Use full import paths for internal modules
+- Maintain ESM syntax throughout
+
+## Class Structure
+- Use decorators for MongoDB document definitions
+- Extend base classes (SmartDataDbDoc, SmartDataDbCollection)
+- Static methods for factory patterns
+- Instance methods for document operations
+
+## Async Patterns
+- Preserve Promise-based patterns
+- Use async/await for clarity
+- Handle errors appropriately
+- Return typed Promises
+
+## MongoDB Specifics
+- Use `@unify()` decorator for unique fields
+- Use `@svDb()` decorator for database fields
+- Implement proper serialization/deserialization
+- Type-safe query construction with DeepQuery<T>
+
+## Testing Patterns
+- Import from `@git.zone/tstest/tapbundle`
+- End test files with `export default tap.start()`
+- Use descriptive test names
+- Cover edge cases and error conditions