fix(lint): unused vars/imports + react-hook-form watch incompatibility

Resolves de overige lint-warnings van de gefaalde sprint-build die los
staan van PBI-33. Eslint-config staat unused vars/args toe als ze met
'_' prefixen, dus required interface-params krijgen een prefix terwijl
losse dode constantes/imports verwijderd worden.

- sprint-header: productId is required prop maar nog niet gebruikt
  → prefix _productId i.p.v. verwijderen (caller passeert het door)
- agent-throughput: STATUSES-constante was dood — verwijderd, queries
  gebruiken hardcoded status-velden in de perDay-loop
- claude-jobs: productAccessFilter en enforceUserRateLimit waren
  dode imports — verwijderd
- story-log.test: ongebruikte 'data' binding vervangen door bare
  await res.json() zodat de stream nog wel geconsumeerd wordt
- product-dialog: form.watch('auto_pr') vervangen door useWatch met
  control-prop — useWatch is veilig voor React Compiler memoization

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

__tests__/api/story-log.test.ts

@@ -129,7 +129,7 @@ describe('POST /api/stories/:id/log', () => {
       const res = await postStoryLog(
         ...makeRequest({ type: 'TEST_RESULT', content: 'Test gefaald.', status: 'FAILED' })
       )
-      const data = await res.json()
+      await res.json()
 
       expect(res.status).toBe(201)
       expect(mockPrisma.storyLog.create).toHaveBeenCalledWith(

actions/claude-jobs.ts

@@ -3,9 +3,7 @@
 import { revalidatePath } from 'next/cache'
 import { prisma } from '@/lib/prisma'
 import { getSession } from '@/lib/auth'
-import { productAccessFilter } from '@/lib/product-access'
 import { ACTIVE_JOB_STATUSES, jobStatusToApi } from '@/lib/job-status'
-import { enforceUserRateLimit } from '@/lib/rate-limit'
 
 type EnqueueResult =
   | { success: true; jobId: string }

components/dialogs/product-dialog.tsx

@@ -1,7 +1,7 @@
 'use client'
 
 import { useEffect, useState } from 'react'
-import { useForm } from 'react-hook-form'
+import { useForm, useWatch } from 'react-hook-form'
 import { zodResolver } from '@hookform/resolvers/zod'
 import { toast } from 'sonner'
 import { cn } from '@/lib/utils'
@@ -150,7 +150,7 @@ export function ProductDialog(props: Props) {
     }
   }
 
-  const autoPr = form.watch('auto_pr')
+  const autoPr = useWatch({ control: form.control, name: 'auto_pr' })
 
   return (
     <>

components/sprint/sprint-header.tsx

@@ -61,7 +61,7 @@ function toDateInputValue(d: Date | null) {
   return d.toISOString().slice(0, 10)
 }
 
-export function SprintHeader({ productId, productName, sprint, isDemo, sprintStories }: SprintHeaderProps) {
+export function SprintHeader({ productId: _productId, productName, sprint, isDemo, sprintStories }: SprintHeaderProps) {
   const [editingGoal, setEditingGoal] = useState(false)
   const [editingDates, setEditingDates] = useState(false)
   const [completeOpen, setCompleteOpen] = useState(false)

lib/insights/agent-throughput.ts

@@ -21,8 +21,6 @@ export interface JobsPerDayResult {
   kpi: ThroughputKpi
 }
 
-const STATUSES = ['queued', 'claimed', 'running', 'done', 'failed', 'cancelled'] as const
-
 type RawDayRow = { day: Date; status: string; count: bigint }
 type RawKpiRow = { today_count: bigint; done_7d: bigint; terminal_7d: bigint; avg_seconds: number | null }