Persist event sign designs and harden invitation permissions

packages/database/drizzle/0011_event_signs.sql

@@ -0,0 +1,6 @@
+CREATE TABLE "event_signs" (
+  "event_id" uuid PRIMARY KEY REFERENCES "events"("id") ON DELETE CASCADE,
+  "revision" uuid NOT NULL,
+  "object_key" text NOT NULL,
+  "updated_at" timestamp with time zone DEFAULT now() NOT NULL
+);

packages/database/drizzle/meta/_journal.json

@@ -78,6 +78,7 @@
       "when": 1788996000000,
       "tag": "0010_banner_crop",
       "breakpoints": true
-    }
+    },
+    { "idx": 11, "version": "7", "when": 1789086000000, "tag": "0011_event_signs", "breakpoints": true }
   ]
 }