feat: Add complete Agentic Compaction & Pipeline System

- Context Compaction System with token counting and summarization
- Deterministic State Machine for flow control (no LLM decisions)
- Parallel Execution Engine (up to 12 concurrent sessions)
- Event-Driven Coordination via Event Bus
- Agent Workspace Isolation (tools, memory, identity, files)
- YAML Workflow Integration (OpenClaw/Lobster compatible)
- Claude Code integration layer
- Complete demo UI with real-time visualization
- Comprehensive documentation and README

Components:
- agent-system/: Context management, token counting, subagent spawning
- pipeline-system/: State machine, parallel executor, event bus, workflows
- skills/: AI capabilities (LLM, ASR, TTS, VLM, image generation, etc.)
- src/app/: Next.js demo application

Total: ~100KB of production-ready TypeScript code

skills/frontend-design/package.json

@@ -0,0 +1,44 @@
+{
+  "name": "@z-ai/frontend-design-skill",
+  "version": "2.0.0",
+  "description": "Comprehensive frontend design skill for systematic and creative web development",
+  "keywords": [
+    "design-system",
+    "design-tokens",
+    "frontend",
+    "ui-components",
+    "react",
+    "tailwind",
+    "typescript",
+    "accessibility"
+  ],
+  "author": "z-ai platform team",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/z-ai/skills"
+  },
+  "peerDependencies": {
+    "react": "^18.0.0",
+    "react-dom": "^18.0.0"
+  },
+  "devDependencies": {
+    "@tailwindcss/forms": "^0.5.7",
+    "@tailwindcss/typography": "^0.5.10",
+    "@types/react": "^18.2.0",
+    "@types/react-dom": "^18.2.0",
+    "autoprefixer": "^10.4.16",
+    "clsx": "^2.1.0",
+    "postcss": "^8.4.32",
+    "tailwind-merge": "^2.2.0",
+    "tailwindcss": "^3.4.0",
+    "typescript": "^5.3.0"
+  },
+  "files": [
+    "SKILL.md",
+    "README.md",
+    "LICENSE",
+    "examples/**/*",
+    "templates/**/*"
+  ]
+}