Initial commit: TopSysOps site + admin panel

Multi-page public site (Next.js), Node/Express backend with Postgres,
and Vite admin/account app, restructured from a single-page layout
into dedicated service, promotions, cases, about, FAQ, and blog pages
for SEO.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013otXCiTZsxdZ4SJKZ9wUky

backend/migrations/001_init.sql

@@ -0,0 +1,55 @@
+CREATE TABLE IF NOT EXISTS admin_users (
+  id SERIAL PRIMARY KEY,
+  username TEXT UNIQUE NOT NULL,
+  password_hash TEXT NOT NULL,
+  created_at TIMESTAMPTZ DEFAULT now()
+);
+
+CREATE TABLE IF NOT EXISTS service_categories (
+  id SERIAL PRIMARY KEY,
+  slug TEXT UNIQUE NOT NULL,
+  title TEXT NOT NULL,
+  description TEXT DEFAULT '',
+  icon TEXT DEFAULT 'Server',
+  sort_order INT NOT NULL DEFAULT 0
+);
+
+CREATE TABLE IF NOT EXISTS service_items (
+  id SERIAL PRIMARY KEY,
+  category_id INT NOT NULL REFERENCES service_categories(id) ON DELETE CASCADE,
+  name TEXT NOT NULL,
+  price_text TEXT NOT NULL,
+  period TEXT DEFAULT '',
+  note TEXT DEFAULT '',
+  sort_order INT NOT NULL DEFAULT 0,
+  active BOOLEAN NOT NULL DEFAULT true
+);
+
+CREATE TABLE IF NOT EXISTS promotions (
+  id SERIAL PRIMARY KEY,
+  title TEXT NOT NULL,
+  price_text TEXT NOT NULL,
+  old_price_text TEXT,
+  description TEXT DEFAULT '',
+  active BOOLEAN NOT NULL DEFAULT true,
+  sort_order INT NOT NULL DEFAULT 0,
+  created_at TIMESTAMPTZ DEFAULT now()
+);
+
+CREATE TABLE IF NOT EXISTS reviews (
+  id SERIAL PRIMARY KEY,
+  name TEXT NOT NULL,
+  role TEXT,
+  rating INT NOT NULL CHECK (rating BETWEEN 1 AND 5),
+  text TEXT NOT NULL,
+  status TEXT NOT NULL DEFAULT 'pending' CHECK (status IN ('pending', 'approved', 'rejected')),
+  created_at TIMESTAMPTZ DEFAULT now()
+);
+
+CREATE TABLE IF NOT EXISTS visits (
+  date DATE PRIMARY KEY,
+  count INT NOT NULL DEFAULT 0
+);
+
+CREATE INDEX IF NOT EXISTS idx_service_items_category ON service_items(category_id);
+CREATE INDEX IF NOT EXISTS idx_reviews_status ON reviews(status);