feat: add skills and workspace files

- Add complete skill set including feishu, github, ci-gen, etc.
- Add workspace documentation (AGENTS.md, SOUL.md, etc.)
- Add memory system and project context

skills/webhook-gen/README.md

@@ -0,0 +1,37 @@
+# ai-webhook
+
+Generate production-ready webhook handlers with signature verification, retry logic, and idempotency. Just describe the event.
+
+## Install
+
+```bash
+npm install -g ai-webhook
+```
+
+## Usage
+
+```bash
+npx ai-webhook "stripe payment succeeded"
+# Generates Express webhook handler with retry logic
+
+npx ai-webhook "github push event" -f nextjs
+# Next.js API route handler
+
+npx ai-webhook "shopify order created" -o webhook-handler.ts
+# Save to file
+```
+
+## Setup
+
+```bash
+export OPENAI_API_KEY=sk-...
+```
+
+## Options
+
+- `-f, --framework <name>` - Framework: express, fastify, nextjs (default: express)
+- `-o, --output <path>` - Save to file
+
+## License
+
+MIT