Abuse-monitor: Support tracking stats (#8575)

databases/migrations/chat-plugins/v5.sql

@@ -0,0 +1,17 @@
+-- Creates stats tables for the Perspective moderation tool.
+BEGIN TRANSACTION;
+
+CREATE TABLE perspective_stats (
+	staff TEXT NOT NULL,
+	roomid TEXT NOT NULL PRIMARY KEY,
+	result TINYINT(1) NOT NULL,
+	timestamp INTEGER NOT NULL
+);
+
+CREATE INDEX date_idx ON perspective_stats(date);
+
+-- update database version
+UPDATE db_info SET value = '5' WHERE key = 'version';
+COMMIT;
+
+