Automatic moderation (#875)

* Automatic moderation

* finish

* modpack fixes

* fix unknown license msg

* fix moderation issues

migrations/20240131224610_moderation_packs.sql

@@ -0,0 +1,19 @@
+CREATE TABLE moderation_external_licenses (
+    id bigint PRIMARY KEY,
+    title text not null,
+    status text not null,
+    link text null,
+    exceptions text null,
+    proof text null,
+    flame_project_id integer null
+);
+
+CREATE TABLE moderation_external_files (
+    sha1 bytea PRIMARY KEY,
+    external_license_id bigint references moderation_external_licenses not null
+);
+
+ALTER TABLE files ADD COLUMN metadata jsonb NULL;
+
+INSERT INTO users (id, username, name, email, avatar_url, bio, role, badges, balance)
+VALUES (0, 'AutoMod', 'AutoMod', 'support@modrinth.com', 'https://cdn.modrinth.com/user/2REoufqX/6aabaf2d1fca2935662eca4ce451cd9775054c22.png', 'An automated account performing moderation utilities for Modrinth.', 'moderator', 0, 0)

migrations/20240221215354_moderation_pack_fixes.sql

@@ -0,0 +1,2 @@
+ALTER TABLE moderation_external_files ALTER COLUMN sha1 SET NOT NULL;
+ALTER TABLE moderation_external_licenses ALTER COLUMN title DROP NOT NULL;