Repair missing live timer schema

migrations/0014_live_show_timer_repair.sql

@@ -0,0 +1,18 @@
+CREATE TABLE IF NOT EXISTS live_show_timer_runs (
+  id TEXT PRIMARY KEY,
+  show_id TEXT NOT NULL REFERENCES shows(id) ON DELETE CASCADE,
+  started_at_utc TEXT NOT NULL,
+  ended_at_utc TEXT,
+  CHECK (ended_at_utc IS NULL OR ended_at_utc >= started_at_utc)
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS idx_one_open_show_timer_run
+ON live_show_timer_runs(show_id)
+WHERE ended_at_utc IS NULL;
+
+CREATE INDEX IF NOT EXISTS idx_live_show_timer_runs_show
+ON live_show_timer_runs(show_id, started_at_utc);
+
+INSERT OR IGNORE INTO live_show_timer_runs (id, show_id, started_at_utc, ended_at_utc)
+SELECT 'migrated-' || id, show_id, started_at_utc, ended_at_utc
+FROM live_usage_runs;