Add immutable content submissions

apps/cic-meta/scripts/initdb/server.postgres.sql

@@ -1,8 +1,9 @@
 create table if not exists store (
 	id serial primary key not null,
-	owner_fingerprint text not null,
+	owner_fingerprint text default null,
 	hash char(64) not null unique,
-	content text not null
+	content text not null,
+	mime_type text
 );
 
 create index if not exists idx_fp on store ((lower(owner_fingerprint)));

apps/cic-meta/scripts/initdb/server.sqlite.sql

@@ -1,9 +1,10 @@
 create table if not exists store (
 	/*id serial primary key not null,*/
 	id integer primary key autoincrement,
-	owner_fingerprint text not null,
+	owner_fingerprint text default null,
 	hash char(64) not null unique,
-	content text not null
+	content text not null,
+	mime_type text
 );
 
 create index if not exists idx_fp on store ((lower(owner_fingerprint)));