Query
CREATE TABLE product_sessions (
id TEXT PRIMARY KEY,
session_id TEXT UNIQUE NOT NULL,
store_key TEXT NOT NULL,
sku TEXT NOT NULL,
started_at TEXT NOT NULL,
closed_at TEXT,
llm_calls_count INTEGER DEFAULT 0,
total_api_cost REAL DEFAULT 0,
final_cost REAL DEFAULT 0,
status TEXT DEFAULT 'open',
created_at TEXT DEFAULT (datetime('now')),
session_type TEXT DEFAULT 'image_generation'
)