feat: GET /users/@me/flags, POST /users/@me/flags

scripts/migrate/017_pride_flags.sql

@@ -0,0 +1,24 @@
+-- +migrate Up
+
+-- 2023-05-09: Add pride flags
+-- Hashes are a separate table so we can deduplicate flags.
+
+create table pride_flags (
+    id          text primary key,
+    user_id     text not null references users (id) on delete cascade,
+    hash        text not null,
+    name        text not null,
+    description text
+);
+
+create table user_flags (
+    id          bigint generated by default as identity primary key,
+    user_id     text not null references users (id) on delete cascade,
+    flag_id     text not null references pride_flags (id) on delete cascade
+);
+
+create table member_flags (
+    id          bigint generated by default as identity primary key,
+    member_id   text not null references members (id) on delete cascade,
+    flag_id     text not null references pride_flags (id) on delete cascade
+);