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/github-action-gen/src/index.ts

@@ -0,0 +1,21 @@
+import OpenAI from "openai";
+
+const openai = new OpenAI({ apiKey: process.env.OPENAI_API_KEY });
+
+export async function generateWorkflow(description: string): Promise<string> {
+  const res = await openai.chat.completions.create({
+    model: "gpt-4o-mini",
+    messages: [
+      {
+        role: "system",
+        content: "You are a DevOps expert. Generate a complete GitHub Actions workflow YAML file based on the description. Use best practices: proper triggers, caching, environment variables, and job dependencies. Return ONLY the YAML content, no explanation.",
+      },
+      {
+        role: "user",
+        content: `Create a GitHub Actions workflow: ${description}`,
+      },
+    ],
+    temperature: 0.3,
+  });
+  return res.choices[0].message.content || "";
+}