Initial commit: clean project structure

- Backend: FastAPI + SQLAlchemy + Celery (Python 3.11+)
- Frontend: Vue 3 + TypeScript + Pinia + Tailwind
- Admin Frontend: separate Vue 3 app for management
- Docker Compose: 9 services orchestration
- Specs: design prototypes, memory system PRD, product roadmap

Cleanup performed:
- Removed temporary debug scripts from backend root
- Removed deprecated admin_app.py (embedded UI)
- Removed duplicate docs from admin-frontend
- Updated .gitignore for Vite cache and egg-info

admin-frontend/tailwind.config.js

@@ -0,0 +1,46 @@
+/** @type {import('tailwindcss').Config} */
+export default {
+  darkMode: 'class',
+  content: [
+    "./index.html",
+    "./src/**/*.{vue,js,ts,jsx,tsx}",
+  ],
+  theme: {
+    extend: {
+      fontFamily: {
+        sans: ['Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'sans-serif'],
+      },
+      borderRadius: {
+        '2xl': '1rem',
+        '3xl': '1.5rem',
+      },
+      boxShadow: {
+        glass: '0 8px 32px rgba(0,0,0,0.08)',
+      },
+      animation: {
+        float: 'float 3s ease-in-out infinite',
+      },
+      keyframes: {
+        float: {
+          '0%, 100%': { transform: 'translateY(0px)' },
+          '50%': { transform: 'translateY(-10px)' },
+        },
+      },
+      colors: {
+        primary: {
+          50: '#fdf4ff',
+          100: '#fae8ff',
+          200: '#f5d0fe',
+          300: '#f0abfc',
+          400: '#e879f9',
+          500: '#d946ef',
+          600: '#c026d3',
+          700: '#a21caf',
+          800: '#86198f',
+          900: '#701a75',
+        },
+      },
+    },
+  },
+  plugins: [],
+}