CREATE TABLE integration_configs (
  id UUID PRIMARY KEY,
  config_key TEXT NOT NULL UNIQUE,
  provider TEXT NOT NULL,
  is_enabled BOOLEAN NOT NULL DEFAULT TRUE,
  config_json JSONB NOT NULL,
  created_at TIMESTAMP NOT NULL DEFAULT NOW(),
  updated_at TIMESTAMP NOT NULL DEFAULT NOW()
);

CREATE TABLE jobs (
  id UUID PRIMARY KEY,
  queue_name TEXT NOT NULL,
  job_type TEXT NOT NULL,
  status TEXT NOT NULL DEFAULT 'queued',
  payload_json JSONB NOT NULL,
  attempts INTEGER NOT NULL DEFAULT 0,
  max_attempts INTEGER NOT NULL DEFAULT 3,
  available_at TIMESTAMP NOT NULL DEFAULT NOW(),
  processed_at TIMESTAMP,
  failed_at TIMESTAMP,
  error_message TEXT,
  created_at TIMESTAMP NOT NULL DEFAULT NOW(),
  updated_at TIMESTAMP NOT NULL DEFAULT NOW()
);

CREATE INDEX jobs_queue_name_status_available_at_idx
ON jobs(queue_name, status, available_at);