feat: implement semantic search functionality and engine for project similarity analysis

feat: implement similarity_engine with hybrid scoring and database-backed project comparison logic

feat: implement hybrid similarity ranking engine with dynamic weighting and originality scoring

feat: implement similarity engine with embedding generation, hybrid ranking, and explainability modules

feat: implement similarity engine for hybrid semantic and feature-based project comparison

feat: implement hybrid similarity ranking and search engine modules to improve project retrieval accuracy

feat: implement modular hybrid similarity engine with semantic search and feature-based ranking components

update

feat: implement hybrid similarity ranking engine with adaptive weighting and score normalization

update

update

update

update .gitignore and add scheduler and sync_projects services

add fiels