feat(db): add out_of_hours column to bookings table

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

init-scripts/init-script.sql

@@ -384,7 +384,8 @@ CREATE TABLE bookings (
     created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
     updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
     created_by CHAR(12),
-    idempotency_key VARCHAR(64) UNIQUE
+    idempotency_key VARCHAR(64) UNIQUE,
+    out_of_hours BOOLEAN NOT NULL DEFAULT FALSE
 );
 
 CREATE INDEX idx_bookings_userid ON bookings(user_id);