docs: add CONTRIBUTING.md

Author: harvenstar

CONTRIBUTING.md

@@ -0,0 +1,56 @@
+# Contributing to AgentClick
+
+Thank you for your interest in contributing!
+
+## Getting Started
+
+```bash
+git clone https://github.com/agentlayer-io/AgentClick.git
+cd AgentClick
+npm install
+npm run dev
+```
+
+- Server runs at `http://localhost:38173`
+- Web UI runs at `http://localhost:5173`
+
+## How to Contribute
+
+1. Fork the repository
+2. Create a branch: `git checkout -b feat/your-feature`
+3. Make your changes
+4. Test locally with `npm run dev`
+5. Build to verify: `npm run build`
+6. Submit a pull request
+
+## Commit Style
+
+Keep commits atomic — one thing per commit. Use a short prefix:
+
+- `feat:` new feature
+- `fix:` bug fix
+- `docs:` documentation only
+- `chore:` maintenance (deps, build, version bumps)
+
+## Project Structure
+
+```
+packages/
+  server/   Express API server (TypeScript)
+  web/      React + Vite frontend (TypeScript + Tailwind)
+skills/
+  clickui-approve/      Action approval skill
+  clickui-code/         Code review skill
+  clickui-email/        Email live session skill
+  clickui-plan/         Plan review skill
+  clickui-trajectory/   Trajectory review skill
+  clickui-memory/       Memory review skill
+```
+
+## Skill Development
+
+Each skill lives in `skills/<name>/SKILL.md`. If you add or modify a skill, make sure it works for both local (Claude Code, Codex) and Docker (OpenClaw) environments. See existing skills for the polling pattern.
+
+## Reporting Issues
+
+Open an issue at [github.com/agentlayer-io/AgentClick/issues](https://github.com/agentlayer-io/AgentClick/issues) with steps to reproduce and your environment details.