fix(web): production-build type errors (tsc -b caught what --noEmit missed)

Test-file TeamSnapshot literals needed the new `domain` field, api.test used
L1: null (now a string), and LiveBoardFeed's NodeActivityKind map was missing the
`fallback` key. tsc --noEmit + vitest passed these (vitest doesn't type-check;
the no-emit config skipped the test files that tsc -b checks); the vite build did not.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

src/components/LiveBoardFeed.tsx

@@ -8,6 +8,7 @@ const KIND_DOT: Record<NodeActivityKind, string> = {
   flash: 'bg-primary',
   error: 'bg-destructive',
   response: 'bg-teal',
+  fallback: 'bg-amber',
 }
 
 const TALLY: { key: keyof NodeFeed['counts']; label: string }[] = [

src/components/TeamCard.test.tsx

@@ -7,6 +7,7 @@ const base: TeamSnapshot = {
   id: 't1',
   name: 'team_resonance',
   kit: 'KIT-03',
+  domain: 'structural stress',
   members: ['a'],
   phases: { reg: true, setup: true, m1: false, m2: false, add: false },
   stats: { calls: 12, nominal: 8, anomalous: 3, critical: 1 },

src/lib/api.test.ts

@@ -13,6 +13,7 @@ const snapshot: TeamSnapshot = {
   id: 'team-1',
   name: 'team_x',
   kit: 'KIT-01',
+  domain: '',
   members: ['a'],
   phases: { reg: true, setup: false, m1: false, m2: false, add: false },
   stats: { calls: 0, nominal: 0, anomalous: 0, critical: 0 },
@@ -49,7 +50,7 @@ describe('api client', () => {
       teamId: 'team-1',
       teamName: 'team_x',
       code: 'KIT-01-AAA',
-      add: { L1: null, L2: '', L3: '', L4: '', L5: '' },
+      add: { L1: '', L2: '', L3: '', L4: '', L5: '' },
       submittedAt: '2026-07-27T18:00:00.000Z',
     })
     expect(res.teamId).toBe('team-1')

src/lib/useCollective.test.ts

@@ -6,6 +6,7 @@ const team = (id: string): TeamSnapshot => ({
   id,
   name: `team ${id}`,
   kit: 'KIT-01',
+  domain: '',
   members: [],
   phases: { reg: true, setup: false, m1: false, m2: false, add: false },
   stats: { calls: 0, nominal: 0, anomalous: 0, critical: 0 },

src/pages/Admin.test.tsx

@@ -22,6 +22,7 @@ const team = (i: number): TeamSnapshot => ({
   id: `t${i}`,
   name: `team ${i}`,
   kit: `KIT-${String(i).padStart(2, '0')}`,
+  domain: '',
   members: [],
   phases: { reg: true, setup: false, m1: false, m2: false, add: false },
   stats: { calls: 0, nominal: 0, anomalous: 0, critical: 0 },