Enhance logging for scoring and reranking processes

Refactor mentor availability handling across services

Refactor RecommendationService to remove filtering logic

Implement fallback filtering in RecommendationService for mentor queries

Enhance logging in PineconeService for query results and statistics

Add test for recommend mentors endpoint and enhance logging in services

Initial commit of the MentorMe AI Recommendation Server, including core application structure, environment configuration, Docker setup, and essential services for mentor recommendations and health checks.