Add Unity Agent Workflows plugin (#104)

Add Unity Agent Workflows to the Development & Workflow community plugin list following CONTRIBUTING.md.

Author: AUN-PN

README.md

@@ -146,6 +146,7 @@ Third-party plugins built by the community. [PRs welcome](#contributing)!
 - [Tartiner Labs](https://github.com/tartinerlabs/skills) - Agent skills for git workflows, GitHub automation, security audits, code refactoring, and project tooling.
 - [Team Skills Platform](https://github.com/Colin4k1024/tsp) - Role-based team delivery framework — Tech Lead-orchestrated 8-role system with 195+ skills, 27 specialist agents, 80+ commands, hooks, and ECC harness for Claude Code, Codex, and OpenCode.
 - [Tool Advisor](https://github.com/dragon1086/claude-skills) - Read-only meta-skill that scans your MCP servers, skills, plugins, and CLI tools, then suggests up to three ranked approaches (Methodical / Fast / Deep) with a copy-paste Quick Action table.
+- [Unity Agent Workflows](https://github.com/AUN-PN/unity-agent-workflows) - Codex plugin and skill for Unity 2D agents that enforces "No proof, no edit" workflows with runtime-owner proof, Teach structure maps, and validation gates.
 - [Universal Design Principles](https://github.com/HDeibler/universal-design-principles) - Cross-agent UX and product-design marketplace with a root Codex collection plugin, five focused plugin bundles, and 137 Agent Skills for design review, accessibility, layout, interaction, cognition, and product polish.
 - [VibePortrait](https://github.com/dadwadw233/VibePortrait) - Developer personality portrait generator — analyzes AI conversation history to produce MBTI type (16 color themes), capability radar, developer rating, 3-dimension famous match, and a persona skill that lets any AI "think like you".
 - [Writer's Loop](https://github.com/xxsang/writers-loop) - Structured AI writing workflow for planning, critique, revision, translation, style distillation, and opt-in local preference learning.