Initial commit: Full Crawl API implementation

crates/db/migrations/002_oauth_and_subscriptions.sql

@@ -0,0 +1,27 @@
+CREATE TABLE oauth_accounts (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    provider VARCHAR(50) NOT NULL,
+    provider_account_id VARCHAR(255) NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    UNIQUE(provider, provider_account_id)
+);
+
+CREATE INDEX idx_oauth_accounts_user_id ON oauth_accounts(user_id);
+
+CREATE TABLE subscriptions (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    stripe_customer_id VARCHAR(255),
+    stripe_subscription_id VARCHAR(255),
+    stripe_price_id VARCHAR(255),
+    status VARCHAR(50) NOT NULL DEFAULT 'incomplete',
+    tier VARCHAR(50) NOT NULL DEFAULT 'free',
+    current_period_start TIMESTAMPTZ,
+    current_period_end TIMESTAMPTZ,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX idx_subscriptions_user_id ON subscriptions(user_id);
+CREATE INDEX idx_subscriptions_stripe_customer ON subscriptions(stripe_customer_id);