feat(seller): add seller_stripe_accounts migration and model

veza-backend-api/internal/models/seller_stripe_account.go

@@ -0,0 +1,24 @@
+package models
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+)
+
+// SellerStripeAccount links a user (seller) to their Stripe Connect Express account
+type SellerStripeAccount struct {
+	ID                  uuid.UUID `json:"id" gorm:"type:uuid;primaryKey;default:gen_random_uuid()"`
+	UserID              uuid.UUID `json:"user_id" gorm:"type:uuid;uniqueIndex;not null"`
+	StripeAccountID     string    `json:"stripe_account_id" gorm:"type:varchar(255);uniqueIndex;not null"`
+	ChargesEnabled      bool      `json:"charges_enabled" gorm:"default:false"`
+	PayoutsEnabled      bool      `json:"payouts_enabled" gorm:"default:false"`
+	OnboardingCompleted bool      `json:"onboarding_completed" gorm:"default:false"`
+	CreatedAt           time.Time `json:"created_at" gorm:"autoCreateTime"`
+	UpdatedAt           time.Time `json:"updated_at" gorm:"autoUpdateTime"`
+}
+
+// TableName specifies the table name for SellerStripeAccount
+func (SellerStripeAccount) TableName() string {
+	return "seller_stripe_accounts"
+}

veza-backend-api/migrations/114_seller_stripe_accounts.sql

@@ -0,0 +1,17 @@
+-- Migration 114: Seller Stripe Connect accounts (v0.602)
+-- Links users (sellers) to their Stripe Connect Express accounts
+
+CREATE TABLE IF NOT EXISTS seller_stripe_accounts (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    stripe_account_id VARCHAR(255) NOT NULL,
+    charges_enabled BOOLEAN DEFAULT FALSE,
+    payouts_enabled BOOLEAN DEFAULT FALSE,
+    onboarding_completed BOOLEAN DEFAULT FALSE,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    CONSTRAINT uq_seller_stripe_user UNIQUE (user_id),
+    CONSTRAINT uq_seller_stripe_account UNIQUE (stripe_account_id)
+);
+
+CREATE INDEX idx_seller_stripe_accounts_user ON seller_stripe_accounts(user_id);