Add encryption and decryption for sensitive message data

Add dynamic handling for changed fields in prompts

Add dynamic handling for changed fields in prompts

Handle empty responses in AI recommendation generation

Add functionality for handling empty responses in AI workflows

Optimize semantic entity filtering threshold

Refactor empty_field usage in prompt replacements

Refactor message handling to support optional fields.

Refactor message handling and AI prompts for clarity.

fix

add top match

fix empty search

added invalid request handling

added invalid request handling

added highlights

finish ai

finish backend

init