Add the ability to register for updates on quick reports

At this point it also appears that I'm correctly capturing the GPS
location as both PostGIS data and as an H3 cell.

db/migrations/00024_public_report.sql

@@ -6,7 +6,9 @@ CREATE TABLE publicreport.quick (
 	comments TEXT NOT NULL,
 	location GEOGRAPHY,
 	h3cell h3index,
-	uuid UUID NOT NULL
+	public_id TEXT NOT NULL UNIQUE,
+	reporter_email TEXT NOT NULL,
+	reporter_phone TEXT NOT NULL
 );
 
 CREATE TABLE publicreport.quick_photo (