started work on scheduling

schema.sql

@@ -294,3 +294,15 @@ CREATE TABLE IF NOT EXISTS client_program_cycle (
     FOREIGN KEY(clientCode) REFERENCES client(clientCode) ON DELETE CASCADE
 );
 
+CREATE TABLE IF NOT EXISTS client_session_schedule (
+    clientCode           TEXT NOT NULL PRIMARY KEY,
+    scheduledDate        TEXT NOT NULL,
+    programCycleNumber   INTEGER NOT NULL,
+    programSessionNumber INTEGER NOT NULL,
+    programSessionID     TEXT,
+    updatedAt            INTEGER NOT NULL DEFAULT 0,
+    FOREIGN KEY(clientCode) REFERENCES client(clientCode) ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS idx_client_session_schedule_date
+    ON client_session_schedule(scheduledDate);