feat: add product_integration_translations table and migrate marianek.pl data

database/migrations/20260227_000014_create_product_integration_translations.sql

@@ -0,0 +1,43 @@
+CREATE TABLE IF NOT EXISTS product_integration_translations (
+    id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+    product_id INT UNSIGNED NOT NULL,
+    integration_id INT UNSIGNED NOT NULL,
+    name VARCHAR(255) NULL,
+    short_description TEXT NULL,
+    description LONGTEXT NULL,
+    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    UNIQUE KEY pit_product_integration_unique (product_id, integration_id),
+    KEY pit_product_idx (product_id),
+    KEY pit_integration_idx (integration_id),
+    CONSTRAINT pit_product_fk
+        FOREIGN KEY (product_id) REFERENCES products(id)
+        ON DELETE CASCADE ON UPDATE CASCADE,
+    CONSTRAINT pit_integration_fk
+        FOREIGN KEY (integration_id) REFERENCES integrations(id)
+        ON DELETE CASCADE ON UPDATE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+-- Migrate existing products to marianek.pl integration.
+-- Finds the integration by name 'marianek.pl' and copies current
+-- product_translations content for all linked products.
+INSERT INTO product_integration_translations
+    (product_id, integration_id, name, short_description, description, created_at, updated_at)
+SELECT
+    pt.product_id,
+    i.id AS integration_id,
+    pt.name,
+    pt.short_description,
+    pt.description,
+    NOW(),
+    NOW()
+FROM product_translations pt
+INNER JOIN product_channel_map pcm ON pcm.product_id = pt.product_id
+INNER JOIN integrations i ON i.id = pcm.integration_id
+WHERE i.name = 'marianek.pl'
+  AND pt.lang = 'pl'
+ON DUPLICATE KEY UPDATE
+    name = VALUES(name),
+    short_description = VALUES(short_description),
+    description = VALUES(description),
+    updated_at = VALUES(updated_at);