Query
CREATE TABLE im_pairing_requests (
id TEXT PRIMARY KEY,
channel_id TEXT NOT NULL,
sender_id TEXT NOT NULL,
code TEXT NOT NULL,
status TEXT NOT NULL DEFAULT 'pending' CHECK (status IN ('pending', 'approved', 'expired')),
created_at TEXT NOT NULL DEFAULT (datetime('now')),
expires_at TEXT NOT NULL DEFAULT (datetime('now', '+10 minutes')),
verified_at TEXT,
FOREIGN KEY (channel_id) REFERENCES im_channels(id) ON DELETE CASCADE
)