refactor: enhance notification tool with classification types, validation logic, and updated system prompt instructions

refactor: update notification tool logic to enforce data collection requirements and improve logging configuration

refactor: implement TOML-based configuration and environment variable loading for application settings

refactor: modularize codebase by replacing document store with RAG, chatbot, and schema-based tool abstractions

refactor: implement modular tool registry and bootstrap system to support dynamic tool integration and dependency injection

refactor: encapsulate core logic into object-oriented classes for Chunker, RagStore, LLM, and Tools

refactor: move chat logic to generate_chat_response and simplify tool call loop handling

refactor: decouple LLM logic into new module and configure tool call limits via settings

refactor: RAG pipeline, Pushover notifications, and LLM tool definitions

refactor: replace print statements with structured logging for better output control

refactor: introduce DocumentStore and Settings for config and document management

added cability to ask users for contact details

added tool calls

added RAG

fixed typo

add application files

initial commit