push to docker hub too

schema/create-schema.sql

@@ -12,11 +12,11 @@ create table application_t (
 );
 
 create table measurement_t (
-    time timestamp without time zone not null,
-    application_name varchar(16) not null,
+    time timestamptz not null,
+    application_name text not null,
     raw_level numeric(10, 0),
     level numeric(10, 0),
-    status varchar(16),
+    status text,
     battery float
 );