fix(back): added dialogue router to app

feat(back): added CRUDs for dialogues

Запрос на слияние 'dev-back' (#2) из dev-back в dev

feat(back): added CRUDs for messages

feat(back): added CRUDs for messages

Запрос на слияние 'dev-back' (#1) из dev-back в dev

fix(back): now catching error when creating completion model with duplicate api_name

feat(back): made completion_model.api_name index

feat(back): added existance check before updating model

feat(back): added CRUDs for llm models

fix(back): now catching error when creating completion model with duplicate api_name

feat(back): made completion_model.api_name index

feat(back): added existance check before updating model

feat(back): added CRUDs for llm models

fix(build): changed exposed backend port to 8000

fix(build): fixed frontend dockerfile

fix(build): fixed frontend dockerfile

fix(build): fixed frontend dockerfile