Update recursion limit in job workflow and replace LLM model references with Google Gemma. Add new data loading and research subgraph modules for modularity

"Modified Dockerfile for HF Deployement, Made changes to main graph and intermediate graph states"

Refactor job writing agent: Improved code structure by introducing new data loading classes, enhancing logging practices, and ensuring safe environment variable access. Updated workflow logic for better readability and maintainability.

Code Refactoring and Central Logging

Restructuring the application repo.