Set null not distinct in scanner request constraint

scanner/migrations/000001_request.up.sql

@@ -20,5 +20,5 @@ create table scanner.requests(
 	status scanner.request_status not null default 'pending',
 	started_at timestamptz,
 	created_at timestamptz not null default now()::timestamptz,
-	constraint unique_kty unique(kind, title, year)
+	constraint unique_kty unique nulls not distinct (kind, title, year)
 );

scanner/scanner/models/request.py

@@ -20,6 +20,7 @@ class Request(Model, extra="allow"):
 		id: str
 		episodes: list[Guess.Episode]
 
+
 class RequestRet(Model):
 	id: str
 	kind: Literal["episode", "movie"]

scanner/scanner/routers/health.py

@@ -13,4 +13,3 @@ def get_ready():
 	# child spans (`select 1` & db connection reset) was still logged,
 	# since i don't really wanna deal with it, let's just do that.
 	return {"status": "healthy"}
-