docs: Strengthen Documentation Architecture & Developer Guides (#38)

[amankoli09]

Overview

This PR resolves #38 (DOC-01: Strengthen Documentation Architecture & Developer Guides) by establishing a comprehensive, well-structured developer knowledge base.

The previous documentation has been reorganized and expanded into a dedicated Docs/ directory with logical sections covering architecture, security, deployment, CI/CD, and development workflows. This provides a clear, single source of truth to streamline onboarding for new contributors.

Changes Included

• Docs Directory Structure: Established a dedicated Docs/ folder organized into logical sections (architecture, getting-started, security, ci-cd, etc.).
• Master Documentation Index: Created a central README.md within Docs/ serving as the main entry point with clear navigation and cross-references.
• Architecture Documentation: Added detailed guides covering the system overview, execution flow, data flow, agent overview, and module inventory.
• Security & Error Handling: Provided comprehensive bias mitigation strategies, error handling patterns, and a security overview.
• Development & Contribution Guides: Added clear contributing guidelines (including the MAIN agent issue breakdown), human testing protocols, and the calibration framework.
• Deployment & CI/CD: Documented environment variables, CI/CD workflows, and Discord webhook configurations.

Related Issues

Closes #38