Add admin panel: visit counter, product editor, screenshots upload

migrations/003_admin_features.sql

@@ -0,0 +1,25 @@
+-- Расширение товаров, скриншоты, статистика посещений
+
+ALTER TABLE products ADD COLUMN IF NOT EXISTS details TEXT NOT NULL DEFAULT '';
+ALTER TABLE products ADD COLUMN IF NOT EXISTS is_active BOOLEAN NOT NULL DEFAULT true;
+ALTER TABLE products ADD COLUMN IF NOT EXISTS updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW();
+
+CREATE TABLE IF NOT EXISTS product_images (
+    id          SERIAL PRIMARY KEY,
+    product_id  INT NOT NULL REFERENCES products(id) ON DELETE CASCADE,
+    file_path   VARCHAR(512) NOT NULL,
+    is_primary  BOOLEAN NOT NULL DEFAULT false,
+    sort_order  INT NOT NULL DEFAULT 0,
+    created_at  TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_product_images_product ON product_images (product_id);
+
+CREATE TABLE IF NOT EXISTS site_stats (
+    id           INT PRIMARY KEY DEFAULT 1 CHECK (id = 1),
+    total_visits BIGINT NOT NULL DEFAULT 0,
+    today_visits INT NOT NULL DEFAULT 0,
+    visit_date   DATE NOT NULL DEFAULT CURRENT_DATE
+);
+
+INSERT INTO site_stats (id) VALUES (1) ON CONFLICT (id) DO NOTHING;