Merge remote-tracking branch 'origin/feature/notification' into self-order+notification

# Conflicts:
#	go.mod
#	go.sum
#	internal/app/app.go
#	internal/router/router.go

migrations/000063_create_user_devices_table.down.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS user_devices;

migrations/000063_create_user_devices_table.up.sql

@@ -0,0 +1,22 @@
+-- User devices table
+CREATE TABLE user_devices (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    device_id VARCHAR(255) NOT NULL,
+    device_name VARCHAR(255),
+    device_type VARCHAR(50) CHECK (device_type IN ('mobile', 'tablet', 'desktop')),
+    platform VARCHAR(50) CHECK (platform IN ('android', 'ios', 'web')),
+    fcm_token VARCHAR(512),
+    app_version VARCHAR(50),
+    os_version VARCHAR(50),
+    ip_address VARCHAR(45),
+    last_active_at TIMESTAMP WITH TIME ZONE,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- Indexes
+CREATE INDEX idx_user_devices_user_id ON user_devices(user_id);
+CREATE INDEX idx_user_devices_device_id ON user_devices(device_id);
+CREATE INDEX idx_user_devices_fcm_token ON user_devices(fcm_token);
+CREATE UNIQUE INDEX idx_user_devices_user_device ON user_devices(user_id, device_id);