fix(client): work through the findings from the coverage pass

214 items came out of writing the tests. Real defects are corrected, dead code
is removed rather than covered, and the tests that pinned the old behaviour
move with them.

Also drops two agent coverage scratch files that slipped into the coverage PR
and adds the ignore rule that keeps them out.

client/src/components/Map/MapView.test.tsx

@@ -1001,6 +1001,15 @@ describe('MapView photo thumbnails', () => {
     expect(iconHtmlOf(screen.getAllByTestId('marker')[0])).toContain('/uploads/places/mine.jpg')
   })
 
+  it('FE-COMP-MAPVIEW-076: a place with neither provider id nor coordinates has no cache key and is skipped', () => {
+    render(<MapView places={[
+      buildMapPlace({ id: 25, lat: null, lng: null, image_url: 'https://example.com/a.jpg' }),
+      buildMapPlace({ id: 26, lat: null, lng: null, image_url: 'https://example.com/b.jpg' }),
+    ]} />)
+    expect(thumbCallbacks.size).toBe(0)
+    expect(vi.mocked(photoService.fetchPhoto)).not.toHaveBeenCalled()
+  })
+
   it('FE-COMP-MAPVIEW-071: photos are not fetched at all when the feature is off', () => {
     useAuthStore.setState({ placesPhotosEnabled: false })
     render(<MapView places={[buildMapPlace({ id: 24, lat: 48, lng: 2, google_place_id: 'gp-24' })]} />)