fix(api): clean up this slice's own lint violations

Fixed five prettier/prettier formatting errors in the three spec files
Slice 0.10 wrote or edited (world-discovery.service.spec.ts,
local-location-interaction.spec.ts, vertical-slice.seed.spec.ts).
Scoped by hand to just those locations so the pre-existing errors
elsewhere in the workspace, unrelated to this slice, are left alone.

Also corrects the implementation notes, which previously understated
the lint state as entirely pre-existing.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

apps/api/src/database/seeds/vertical-slice.seed.spec.ts

@@ -1284,9 +1284,7 @@ describe('seedVisibleVerticalSlice', () => {
 
     await seedVisibleVerticalSlice(dataSource);
 
-    const hide = itemRepository.rows.find(
+    const hide = itemRepository.rows.find((row) => row.key === 'scorched-hide');
-      (row) => row.key === 'scorched-hide',
-    );
     const mark = itemRepository.rows.find(
       (row) => row.key === 'raider-warband-mark',
     );
@@ -1334,9 +1332,7 @@ describe('seedVisibleVerticalSlice', () => {
       )?.silverReward as number;
 
     // The longer trip has to pay, or §10's loop has no pull (slice §6).
-    expect(silverFor('scorched-hide')).toBeGreaterThan(
+    expect(silverFor('scorched-hide')).toBeGreaterThan(silverFor('tough-hide'));
-      silverFor('tough-hide'),
-    );
     expect(silverFor('raider-warband-mark')).toBeGreaterThan(
       silverFor('bandit-insignia'),
     );
@@ -1569,9 +1565,7 @@ describe('seedVisibleVerticalSlice', () => {
 
     await seedVisibleVerticalSlice(dataSource);
 
-    const ashPit = locationRepository.rows.find(
+    const ashPit = locationRepository.rows.find((row) => row.key === 'ash-pit');
-      (row) => row.key === 'ash-pit',
-    );
     const pool = locationMonsterRepository.rows.filter(
       (row) => row.locationId === ASH_PIT_ID,
     );

apps/api/src/world/discovery/world-discovery.service.spec.ts

@@ -46,7 +46,9 @@ function buildService(options: {
 
   const locationRepository = {
     findOneBy: jest.fn(({ key }: { key: string }) =>
-      Promise.resolve(locations.find((location) => location.key === key) ?? null),
+      Promise.resolve(
+        locations.find((location) => location.key === key) ?? null,
+      ),
     ),
   } as unknown as Repository<LocationDefinition>;
 

apps/api/src/world/local-location-interaction.spec.ts

@@ -111,7 +111,9 @@ function buildService(options: {
   alreadyDiscovered?: boolean;
 }) {
   const currentLocation = location(BURNED_ROAD_ID, options.pointsOfInterest);
-  const discover = jest.fn().mockResolvedValue(
+  const discover = jest
+    .fn()
+    .mockResolvedValue(
       options.alreadyDiscovered ? null : { key: 'ash-pit', name: 'Ash Pit' },
     );
   const worldDiscovery = {

docs/playable-slices/0.10-Abandoned-Watchpost-implementation-notes.md

@@ -283,6 +283,18 @@ None of these were judged to change behavior a player can hit; they are
 seams a future slice's tests should tighten, most likely whichever slice
 next touches the combat engine or the seed's encounter-pool weights.
 
+**Lint state.** `npm run lint --workspace=@ashen-realms/api` (scoped to the
+whole API workspace) fails: roughly a hundred `@typescript-eslint` and
+`prettier/prettier` errors remain, all in the quest system, the rewards
+service, the shops module, migration-runner specs and other files this
+slice never touched — confirmed pre-existing by `git blame` timestamps
+predating this branch's base commit. This slice's own files pass lint
+cleanly; the five formatting violations `eslint --fix` originally found in
+`world-discovery.service.spec.ts`, `local-location-interaction.spec.ts` and
+`vertical-slice.seed.spec.ts` were fixed by hand, scoped to just those
+locations. The pre-existing errors are left alone, out of this slice's
+scope and the AGENTS.md rule against unrelated refactoring.
+
 ---
 
 ## 7. Outstanding manual verification