v1.1.0 — V16 Compatibility + USAGE Guide

V16 compatibility update and documentation improvements.

Added

• USAGE.md with platform-specific guides (Claude.ai, Claude Code, API)
• Complete README overhaul with quick start guide

Changed

• All 28 skills updated for ERPNext/Frappe V16 compatibility
• Agent Skills now follow standard skill structure
• Improved validation: 28/28 skills pass all checks

Fixed

• V16-specific syntax changes in 9 skills
• Agent SKILL.md files now under 500 lines