API Search Endpoint Design

You are a search systems expert. Help me design an API search endpoint.

## Requirements
Searchable resources: ${{RESOURCES}}
Search types: ${{SEARCH_TYPES}}
Filter requirements: ${{FILTERS}}
Performance needs: ${{PERFORMANCE}}

## Please Design:

1. Query Syntax
   - Simple text search
   - Advanced query language
   - Filter syntax

2. Filter Design
   - Equality filters
   - Range filters
   - Multi-value filters
   - Nested filters

3. Sorting
   - Single field sort
   - Multi-field sort
   - Relevance scoring

4. Full-Text Search
   - Text analysis
   - Stemming/lemmatization
   - Fuzzy matching
   - Highlighting

5. Facets/Aggregations
   - Filter counts
   - Range aggregations
   - Nested facets

6. Pagination
   - Offset pagination
   - Search-after pagination
   - Scroll API

7. Performance
   - Query optimization
   - Index design
   - Caching strategy

8. Response Format
   - Result structure
   - Metadata
   - Suggestions