feat(advertising): implement advertising service with CRUD operations and validation

- Added advertising.go for managing advertising entries with Create and List functionalities.
- Implemented CreateAdvertisingParams with validation for name, email, and status.
- Created migrations for advertising table structure.
- Added tests for advertising parameters validation.

feat(promo): introduce promo management with validation and CRUD operations

- Added promo.go for managing promotional entries with Create, Update, and List functionalities.
- Implemented CreatePromoParams and UpdatePromoParams with validation for position, section, and weeks.
- Created migrations for promo table structure.
- Added tests for promo parameters validation.

feat(images): add image management service with upload and retrieval

- Added images.go for managing image uploads and retrieval from storage.
- Implemented SaveImageParams with validation for image description and data.
- Created migrations for images table structure.
- Added tests for image parameters validation and data parsing.

advertising/migrations/1_create_advertising.up.sql

@@ -0,0 +1,7 @@
+CREATE TABLE advertising (
+    id UUID PRIMARY KEY,
+    nome TEXT NOT NULL,
+    email TEXT NOT NULL,
+    status TEXT NOT NULL CHECK (status IN ('active', 'inactive')),
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);

advertising/migrations/2_create_promo.up.sql

@@ -0,0 +1,7 @@
+CREATE TABLE promo (
+    id BIGSERIAL PRIMARY KEY,
+    position INT NOT NULL CHECK (position IN (0, 1, 2)),
+    item JSONB NOT NULL DEFAULT '[]'::jsonb,
+    active_from TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);

advertising/migrations/3_add_section_to_promo.up.sql

@@ -0,0 +1 @@
+ALTER TABLE promo ADD COLUMN section VARCHAR(50) NOT NULL DEFAULT '';

advertising/migrations/4_add_weeks_to_promo.up.sql

@@ -0,0 +1,2 @@
+ALTER TABLE promo ADD COLUMN year INT NOT NULL DEFAULT EXTRACT(YEAR FROM NOW());
+ALTER TABLE promo ADD COLUMN weeks JSONB NOT NULL DEFAULT '[]'::jsonb;