Proxy Pattern
Provide surrogate for another object to control access. Proxy has same interface as real object. Adds behavior transparently.
ikigai Application
Potential uses:
Lazy loading: Database connection proxy that connects on first query, not at startup.
Logging proxy: Wrap LLM client to log all requests/responses without modifying client code.
Caching proxy: Cache repeated database queries or LLM responses.
Rate limiting: Proxy that throttles API calls.
Implementation: Proxy struct holds pointer to real object, implements same interface, adds behavior before/after delegating.
Current status: Not explicitly used yet. Consider when adding cross-cutting concerns to existing interfaces without modification.