AI-admin: fiks provider-swap ved å droppe UNIQUE-constraint på prioritet

- Fjernet UNIQUE(alias_id, priority) — prioritet er kun for sortering
- Forenklet swap-endpoint til to rene UPDATE-statements
- Renummerert kjapp-providers til sekvensielle prioriteter

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

migrations/0013_drop_priority_unique.sql

@@ -0,0 +1,10 @@
+-- 0013_drop_priority_unique.sql
+-- Fjern UNIQUE-constraint på (alias_id, priority).
+-- Prioritet brukes kun for sortering/fallback-rekkefølge, ikke som naturlig nøkkel.
+-- Constrainten hindrer atomisk swap og krever unødvendig kompleksitet.
+
+BEGIN;
+
+ALTER TABLE ai_model_providers DROP CONSTRAINT IF EXISTS ai_model_providers_alias_id_priority_key;
+
+COMMIT;

web/src/routes/api/admin/ai/providers/swap/+server.ts

@@ -2,43 +2,29 @@ import { json, error } from '@sveltejs/kit';
 import type { RequestHandler } from './$types';
 import { sql } from '$lib/server/db';
 
-/** POST — bytt prioritet mellom to providers (atomisk) */
+/** POST — bytt prioritet mellom to providers */
 export const POST: RequestHandler = async ({ request, locals }) => {
 	if (!locals.workspace || !locals.user) error(401);
 
 	const { id_a, id_b } = await request.json();
 	if (!id_a || !id_b) error(400, 'id_a og id_b kreves');
 
-	// Atomisk swap via CTE — unngår UNIQUE-constraint-brudd
+	// Hent begge providers
-	const rows = await sql`
+	const [a] = await sql`SELECT id, alias_id, priority FROM ai_model_providers WHERE id = ${id_a}::uuid`;
-		WITH swap AS (
+	const [b] = await sql`SELECT id, alias_id, priority FROM ai_model_providers WHERE id = ${id_b}::uuid`;
-			SELECT
-				a.id AS id_a, a.priority AS pri_a,
-				b.id AS id_b, b.priority AS pri_b
-			FROM ai_model_providers a, ai_model_providers b
-			WHERE a.id = ${id_a}::uuid AND b.id = ${id_b}::uuid
-			  AND a.alias_id = b.alias_id
-		),
-		update_a AS (
-			UPDATE ai_model_providers SET priority = -1, updated_at = now()
-			WHERE id = (SELECT id_a FROM swap)
-		),
-		update_b AS (
-			UPDATE ai_model_providers SET priority = (SELECT pri_a FROM swap), updated_at = now()
-			WHERE id = (SELECT id_b FROM swap)
-		)
-		UPDATE ai_model_providers SET priority = (SELECT pri_b FROM swap), updated_at = now()
-		WHERE id = (SELECT id_a FROM swap)
-		RETURNING id
-	`;
 
-	if (rows.length === 0) error(400, 'Kunne ikke bytte — sjekk at begge tilhører samme alias');
+	if (!a || !b) error(404, 'Provider ikke funnet');
+	if (a.alias_id !== b.alias_id) error(400, 'Providers tilhører ikke samme alias');
+
+	// Bytt prioriteter
+	await sql`UPDATE ai_model_providers SET priority = ${b.priority}, updated_at = now() WHERE id = ${a.id}`;
+	await sql`UPDATE ai_model_providers SET priority = ${a.priority}, updated_at = now() WHERE id = ${b.id}`;
 
 	// Returner oppdaterte providers for aliaset
 	const updated = await sql`
 		SELECT id, alias_id, priority, litellm_model, api_key_env, is_active, extra_params
 		FROM ai_model_providers
-		WHERE alias_id = (SELECT alias_id FROM ai_model_providers WHERE id = ${id_a}::uuid)
+		WHERE alias_id = ${a.alias_id}
 		ORDER BY priority ASC
 	`;