refactor: consolidate paused_groups migration into standard include_str! pattern

src/store/mod.rs

@@ -281,34 +281,9 @@ impl TaskStore {
         sqlx::raw_sql(include_str!("../../migrations/004_task_tags.sql"))
             .execute(&self.pool)
             .await?;
-
-        // 010: paused_groups table + pause_reasons column on tasks.
-        // The CREATE TABLE is idempotent, but ALTER TABLE ADD COLUMN will
-        // fail if the column already exists (fresh databases include it in
-        // 001_tasks.sql). Run each statement individually and tolerate the
-        // "duplicate column" error from the ALTER.
-        sqlx::raw_sql(
-            "CREATE TABLE IF NOT EXISTS paused_groups (
-                group_key   TEXT    NOT NULL PRIMARY KEY,
-                paused_at   INTEGER NOT NULL,
-                resume_at   INTEGER
-            );",
-        )
-        .execute(&self.pool)
-        .await?;
-
-        // ALTER TABLE ADD COLUMN is not idempotent — tolerate failure.
-        let _ =
-            sqlx::raw_sql("ALTER TABLE tasks ADD COLUMN pause_reasons INTEGER NOT NULL DEFAULT 0;")
-                .execute(&self.pool)
-                .await;
-
-        // Backfill: existing paused tasks get PREEMPTION bit.
-        sqlx::raw_sql(
-            "UPDATE tasks SET pause_reasons = 1 WHERE status = 'paused' AND pause_reasons = 0;",
-        )
-        .execute(&self.pool)
-        .await?;
+        sqlx::raw_sql(include_str!("../../migrations/005_paused_groups.sql"))
+            .execute(&self.pool)
+            .await?;
 
         Ok(())
     }