feat: scaffold Antonym fashion store

Anonymous Bitcoin-only fashion e-commerce with:
- Vue 3 + Tailwind 4 frontend with glassmorphism dark/light design system
- Express 5 + SQLite backend with BTCPay Server integration
- Nostr identity (NIP-07/keypair) for anonymous purchase tracking
- ChaCha20-Poly1305 encrypted shipping addresses
- Admin panel with order/product/stock management
- SVG logo splash animation with clip-path reveal
- 5 seeded products across 4 categories

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/db/connection.ts

@@ -0,0 +1,22 @@
+import Database from 'better-sqlite3'
+import path from 'node:path'
+import fs from 'node:fs'
+import { fileURLToPath } from 'node:url'
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url))
+const DB_PATH = path.join(__dirname, '..', '..', 'data', 'antonym.db')
+
+let db: Database.Database | null = null
+
+export function getDb(): Database.Database {
+  if (!db) {
+    const dir = path.dirname(DB_PATH)
+    if (!fs.existsSync(dir)) {
+      fs.mkdirSync(dir, { recursive: true })
+    }
+    db = new Database(DB_PATH)
+    db.pragma('journal_mode = WAL')
+    db.pragma('foreign_keys = ON')
+  }
+  return db
+}

server/db/schema.ts

@@ -0,0 +1,53 @@
+import type Database from 'better-sqlite3'
+
+export function initSchema(db: Database.Database): void {
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS products (
+      id TEXT PRIMARY KEY,
+      name TEXT NOT NULL,
+      slug TEXT NOT NULL UNIQUE,
+      description TEXT NOT NULL DEFAULT '',
+      price_sats INTEGER NOT NULL,
+      images TEXT NOT NULL DEFAULT '[]',
+      sizes TEXT NOT NULL DEFAULT '[]',
+      category TEXT NOT NULL DEFAULT 'general',
+      is_active INTEGER NOT NULL DEFAULT 1,
+      created_at TEXT NOT NULL DEFAULT (datetime('now')),
+      updated_at TEXT NOT NULL DEFAULT (datetime('now'))
+    );
+
+    CREATE TABLE IF NOT EXISTS orders (
+      id TEXT PRIMARY KEY,
+      nostr_pubkey TEXT,
+      email TEXT,
+      btcpay_invoice_id TEXT,
+      status TEXT NOT NULL DEFAULT 'pending',
+      shipping_address_encrypted TEXT,
+      items TEXT NOT NULL,
+      total_sats INTEGER NOT NULL,
+      note TEXT,
+      created_at TEXT NOT NULL DEFAULT (datetime('now')),
+      updated_at TEXT NOT NULL DEFAULT (datetime('now'))
+    );
+
+    CREATE TABLE IF NOT EXISTS order_events (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      order_id TEXT NOT NULL REFERENCES orders(id),
+      status TEXT NOT NULL,
+      note TEXT,
+      created_at TEXT NOT NULL DEFAULT (datetime('now'))
+    );
+
+    CREATE TABLE IF NOT EXISTS admin_sessions (
+      token TEXT PRIMARY KEY,
+      created_at TEXT NOT NULL DEFAULT (datetime('now')),
+      expires_at TEXT NOT NULL
+    );
+
+    CREATE INDEX IF NOT EXISTS idx_orders_status ON orders(status);
+    CREATE INDEX IF NOT EXISTS idx_orders_nostr ON orders(nostr_pubkey);
+    CREATE INDEX IF NOT EXISTS idx_order_events_order ON order_events(order_id);
+    CREATE INDEX IF NOT EXISTS idx_products_slug ON products(slug);
+    CREATE INDEX IF NOT EXISTS idx_products_category ON products(category);
+  `)
+}

server/db/seed.ts

@@ -0,0 +1,19 @@
+import type Database from 'better-sqlite3'
+import { nanoid } from 'nanoid'
+
+export function seedProducts(db: Database.Database): void {
+  const count = db.prepare('SELECT COUNT(*) as n FROM products').get() as { n: number }
+  if (count.n > 0) return
+
+  const products = [
+    { id: nanoid(), name: 'Shadow Hoodie', slug: 'shadow-hoodie', description: 'Heavyweight cotton hoodie with embroidered Antonym logo. Oversized fit.', price_sats: 250_000, images: JSON.stringify(['/images/shadow-hoodie.jpg']), sizes: JSON.stringify([{ size: 'S', stock: 10 }, { size: 'M', stock: 15 }, { size: 'L', stock: 12 }, { size: 'XL', stock: 8 }]), category: 'tops' },
+    { id: nanoid(), name: 'Inverse Tee', slug: 'inverse-tee', description: 'Premium organic cotton t-shirt. Minimalist design with contrast stitching.', price_sats: 85_000, images: JSON.stringify(['/images/inverse-tee.jpg']), sizes: JSON.stringify([{ size: 'S', stock: 20 }, { size: 'M', stock: 25 }, { size: 'L', stock: 18 }, { size: 'XL', stock: 10 }]), category: 'tops' },
+    { id: nanoid(), name: 'Contradiction Cargo', slug: 'contradiction-cargo', description: 'Relaxed cargo pants with hidden zip pockets. Washed black.', price_sats: 180_000, images: JSON.stringify(['/images/contradiction-cargo.jpg']), sizes: JSON.stringify([{ size: '28', stock: 8 }, { size: '30', stock: 12 }, { size: '32', stock: 15 }, { size: '34', stock: 10 }, { size: '36', stock: 6 }]), category: 'bottoms' },
+    { id: nanoid(), name: 'Paradox Cap', slug: 'paradox-cap', description: 'Unstructured six-panel cap with tonal embroidery. One size.', price_sats: 45_000, images: JSON.stringify(['/images/paradox-cap.jpg']), sizes: JSON.stringify([{ size: 'ONE SIZE', stock: 30 }]), category: 'accessories' },
+    { id: nanoid(), name: 'Duality Jacket', slug: 'duality-jacket', description: 'Reversible bomber jacket. Matte black one side, reflective silver the other.', price_sats: 450_000, images: JSON.stringify(['/images/duality-jacket.jpg']), sizes: JSON.stringify([{ size: 'S', stock: 5 }, { size: 'M', stock: 8 }, { size: 'L', stock: 6 }, { size: 'XL', stock: 4 }]), category: 'outerwear' },
+  ]
+
+  const insert = db.prepare('INSERT INTO products (id, name, slug, description, price_sats, images, sizes, category) VALUES (@id, @name, @slug, @description, @price_sats, @images, @sizes, @category)')
+  const tx = db.transaction(() => { for (const p of products) insert.run(p) })
+  tx()
+}