feat(admin): metadata-profile picker on integrations page

Persists the operator's metadata-profile choice alongside quality
profile + root folder. Defaults to the first profile Lidarr returns
(usually 'Standard' on a vanilla install) so the common case is
zero-click; operators with custom profiles like 'Singles only' can pick
explicitly.

Backend:
- Migration 0013: adds nullable default_metadata_profile_id to
  lidarr_config. Existing rows get NULL and the service falls back to
  fetch-and-pick-first until they save.
- Updated lidarr_config queries + sqlc + lidarrconfig.Config + admin
  view/put body to round-trip the new field.
- handlePutLidarrConfig requires it (along with QP and root folder)
  when enabled=true — matches the existing missing_defaults gate.
- New GET /api/admin/lidarr/metadata-profiles handler + lidarr.Client
  ListMetadataProfiles (GET /api/v1/metadataprofile, same shape as
  the quality-profile endpoint).
- lidarrrequests.Approve prefers cfg.DefaultMetadataProfileID; falls
  back to the fetch-list path only when 0 (back-compat for upgraders).

Frontend:
- LidarrConfig type + LidarrMetadataProfile type + qk.lidarrMetadataProfiles.
- listMetadataProfiles + createMetadataProfilesQuery client helpers.
- Integrations page: third <select> picker, auto-defaults to first
  profile when the saved value is 0, sends the new field on save and
  clears it on disconnect.
- Updated test fixtures + the duplicate 'Standard' option string in
  the dropdown-populates assertion.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

web/src/lib/api/admin.test.ts

@@ -41,6 +41,7 @@ const baseConfig: LidarrConfig = {
   base_url: 'http://lidarr.lan:8686',
   api_key: '***',
   default_quality_profile_id: 1,
+  default_metadata_profile_id: 1,
   default_root_folder_path: '/music'
 };
 

web/src/lib/api/admin.ts

@@ -5,6 +5,7 @@ import type {
   ActionResult,
   AdminQuarantineRow,
   LidarrConfig,
+  LidarrMetadataProfile,
   LidarrQualityProfile,
   LidarrQuarantineActionRow,
   LidarrRequest,
@@ -36,6 +37,10 @@ export async function listQualityProfiles(): Promise<LidarrQualityProfile[]> {
   return api.get<LidarrQualityProfile[]>('/api/admin/lidarr/quality-profiles');
 }
 
+export async function listMetadataProfiles(): Promise<LidarrMetadataProfile[]> {
+  return api.get<LidarrMetadataProfile[]>('/api/admin/lidarr/metadata-profiles');
+}
+
 export async function listRootFolders(): Promise<LidarrRootFolder[]> {
   return api.get<LidarrRootFolder[]>('/api/admin/lidarr/root-folders');
 }
@@ -92,6 +97,14 @@ export function createQualityProfilesQuery(enabled: boolean = true) {
   });
 }
 
+export function createMetadataProfilesQuery(enabled: boolean = true) {
+  return createQuery({
+    queryKey: qk.lidarrMetadataProfiles(),
+    queryFn: listMetadataProfiles,
+    enabled
+  });
+}
+
 export function createRootFoldersQuery(enabled: boolean = true) {
   return createQuery({
     queryKey: qk.lidarrRootFolders(),

web/src/lib/api/queries.ts

@@ -24,8 +24,9 @@ export const qk = {
     ['lidarrSearch', { q, kind }] as const,
   myRequests:            () => ['myRequests'] as const,
   lidarrConfig:          () => ['lidarrConfig'] as const,
-  lidarrQualityProfiles: () => ['lidarrQualityProfiles'] as const,
-  lidarrRootFolders:     () => ['lidarrRootFolders'] as const,
+  lidarrQualityProfiles:  () => ['lidarrQualityProfiles'] as const,
+  lidarrMetadataProfiles: () => ['lidarrMetadataProfiles'] as const,
+  lidarrRootFolders:      () => ['lidarrRootFolders'] as const,
   adminRequests:         (status?: string) =>
     ['adminRequests', { status: status ?? 'all' }] as const,
   myQuarantine:           ()              => ['myQuarantine'] as const,

web/src/lib/api/types.ts

@@ -131,6 +131,7 @@ export type LidarrConfig = {
   base_url: string;
   api_key: string;
   default_quality_profile_id: number;
+  default_metadata_profile_id: number;
   default_root_folder_path: string;
 };
 
@@ -139,6 +140,11 @@ export type LidarrQualityProfile = {
   name: string;
 };
 
+export type LidarrMetadataProfile = {
+  id: number;
+  name: string;
+};
+
 export type LidarrRootFolder = {
   path: string;
   accessible: boolean;