You are in AUTONOMOUS MODE. Do NOT ask questions. Analyze the project codebase and produce a comprehensive developer onboarding guide.

INPUT: $ARGUMENTS

Accepted arguments:

• No arguments: generate a complete onboarding guide.
• contributing: focus on generating/updating CONTRIBUTING.md only.
• setup: focus on environment setup instructions only.
• architecture: focus on architecture overview only.

============================================================ PHASE 1: CODEBASE ANALYSIS

Step 1.1 -- Tech Stack Detection