spec-rules-init — Coding Rules Generator

Extract project conventions and generate a unified coding-rules.md for use as a quality gate during implementation.

Language Rules

1. Auto-detect input language → output in the same language
2. Japanese input → Japanese output, use references/rules-template.ja.md
3. English input → English output, use references/rules-template.md
4. Explicit override takes priority (e.g., "in English", "日本語で")

Execution Flow

Step 0: Initial Context Check

BEFORE any interaction, execute these checks:

1. Check current directory: