[FEAT] Define project architecture, module ownership, and 6-week roadmap

[MikeNovikoff]

Description

To ensure smooth collaboration and pass the TA's Week 1 checkpoint, we need a single source of truth for the project's architecture, team responsibilities, and delivery plan. This will prevent merge conflicts and align the team on the AI/Backend contracts.

To do

• Create a comprehensive README.md.
• Design and embed a Mermaid.js architecture diagram (Clients -> API -> AI -> DB).
• Define the AI pipeline contract (Clean text -> JSON payload).
• Formalize "Technical Domains & Module Ownership" for the team.
• Integrate the 6-Week Roadmap with checkbox tracking.

Notes

• The architecture must reflect our specific implementation, avoiding generic descriptions.
• Diagram must render natively in GitHub.

Acceptance Criteria

• README.md is fully populated.
• Architecture diagram is visible and accurate.
• Team ownership is explicitly stated.
• 6-Week plan is formatted and readable.