Sprint: Verbeteren debug mode (#179)

* feat(PBI-49): add debugProps helper + Vitest test

Adds lib/debug.ts with debugProps(id, component, file) that returns
data-debug-id and data-debug-label attrs in dev mode, empty object in
production. Adds __tests__/lib/debug.test.ts covering both modes.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* docs(PBI-49): add debug-id pattern doc + CLAUDE.md reference

Adds docs/patterns/debug-id.md documenting the named-component boundary
rule (6 punten), helper-voorbeeld, skip-criteria en motivatie voor
handmatige pad-argumenten. Voegt verwijzing toe aan CLAUDE.md
patterns-tabel.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* refactor(PBI-49): migrate 17 shared/ components to debugProps helper

Replace hardcoded data-debug-id + data-debug-label attribute pairs with
{...debugProps(id, component, file)} spread in all 17 components/shared/
files. Existing debug-ids preserved unchanged.

* feat(PBI-49): add debugProps to backlog/, sprint/, solo/ components

* feat(PBI-49): add debugProps to jobs/ + ideas/ components

* feat(PBI-49): add debugProps to products/ + settings/ + notifications/ components

* feat(PBI-49): add debugProps to admin/ + dashboard/ + dialogs/ + mobile/ + split-pane/

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(PBI-49): use attr(data-debug-id) for debug tooltip in globals.css

* refactor(PBI-49): remove data-debug-label from debugProps helper + test

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* refactor(PBI-49): strip unused component/file args from debugProps in shared/

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(PBI-49): add BEM sub-element data-debug-id to StatusBar, NavBar, PanelNavBar

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(PBI-49): add BEM sub-element data-debug-id to components/sprint/*

- new-sprint-dialog: __submit on submit button
- sprint-backlog: __list on SprintBacklogLeft + SprintBacklogRight scroll areas
- sprint-board-client: root wrapper div (display:contents) + __drag-overlay
- sprint-header: __title on goal button, __dates on dates button, __actions on action cluster
- sprint-run-controls: root on controls div, __start/__cancel on action buttons; __blockers-dialog on dialog content
- start-sprint-button: root on trigger button, __dialog on dialog content, __submit on submit button
- sync-active-sprint-cookie: no debug-id (returns null, side-effect only), comment added

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(PBI-49): add BEM sub-element data-debug-id to components/backlog/*

* feat(PBI-49): add BEM sub-element data-debug-id to components/ideas/*

* feat(PBI-49): add BEM sub-element data-debug-id to components/dashboard/* + components/markdown.tsx

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(PBI-49): add BEM sub-element data-debug-id to new-product-button

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(PBI-49): add BEM sub-element data-debug-id to components/solo/*

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(PBI-49): add BEM sub-elements to nav-status-indicators

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(PBI-49): add BEM sub-element data-debug-id to components/jobs/*

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(PBI-49): add BEM sub-element data-debug-id to components/products/*

* feat(PBI-49): add BEM sub-element data-debug-id to components/notifications/*

- answer-modal: __content (scroll area), __submit (footer)
- notifications-bridge: skip comment (bridge, non-rendering wrapper)
- notifications-realtime-mount: skip comment (returns null)
- notifications-sheet: __header, __items (questions list)
- push-toggle: __switch (button), __label (button text) on subscribed/unsubscribed states

* feat(PBI-49): add BEM sub-element data-debug-id to components/settings/*

- leave-product-button: root only (single-button component)
- min-quota-editor: __input (number input), __save (save button)
- profile-editor: __username (bio/short-description input), __save (submit)
- role-manager: __roles (checkbox list), __add (save button)
- token-manager: __tokens (active tokens list), __generate (create button)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(PBI-49): add BEM sub-element data-debug-id to admin, auth, dialogs, entity-dialog, mobile, split-pane

* docs(PBI-49): add debug-labels BEM pattern doc + CLAUDE.md entry

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

components/dashboard/new-product-button.tsx

@@ -4,6 +4,7 @@ import { useState } from 'react'
 import { useRouter } from 'next/navigation'
 import { Button } from '@/components/ui/button'
 import { ProductDialog } from '@/components/dialogs/product-dialog'
+import { debugProps } from '@/lib/debug'
 
 export function NewProductButton() {
   const [open, setOpen] = useState(false)
@@ -11,7 +12,9 @@ export function NewProductButton() {
 
   return (
     <>
-      <Button onClick={() => setOpen(true)}>+ Nieuw product</Button>
+      <div {...debugProps('new-product-button', 'NewProductButton', 'components/dashboard/new-product-button.tsx')}>
+        <Button onClick={() => setOpen(true)} data-debug-id="new-product-button__trigger">+ Nieuw product</Button>
+      </div>
       <ProductDialog
         mode="create"
         open={open}

components/dashboard/product-list.tsx

@@ -12,6 +12,7 @@ import { DemoTooltip } from '@/components/shared/demo-tooltip'
 import { restoreProductAction } from '@/actions/products'
 import { setActiveProductAction } from '@/actions/active-product'
 import { ProductDialog, type ProductDialogProduct } from '@/components/dialogs/product-dialog'
+import { debugProps } from '@/lib/debug'
 
 interface Product {
   id: string
@@ -53,7 +54,7 @@ export function ProductList({ products, isDemo, showArchived = false, activeProd
 
   if (products.length === 0) {
     return (
-      <div className="bg-surface-container-low rounded-xl border border-border p-12 text-center space-y-3">
+      <div className="bg-surface-container-low rounded-xl border border-border p-12 text-center space-y-3" {...debugProps('product-list', 'ProductList', 'components/dashboard/product-list.tsx')}>
         <p className="text-muted-foreground">
           {showArchived
             ? 'Geen gearchiveerde producten.'
@@ -69,7 +70,7 @@ export function ProductList({ products, isDemo, showArchived = false, activeProd
   }
 
   return (
-    <div className="grid gap-3">
+    <div className="grid gap-3" {...debugProps('product-list', 'ProductList', 'components/dashboard/product-list.tsx')}>
       {products.map(product => (
         <div
           key={product.id}
@@ -77,8 +78,9 @@ export function ProductList({ products, isDemo, showArchived = false, activeProd
           className={`group bg-surface-container-low border border-border rounded-xl p-4 transition-colors ${
             showArchived ? 'opacity-60' : 'cursor-pointer hover:border-primary'
           }`}
+          data-debug-id="product-list__items"
         >
-          <div className="flex items-start justify-between gap-4">
+          <div className="flex items-start justify-between gap-4" data-debug-id="product-list__header">
             <div className="min-w-0">
               <div className="flex items-center gap-2">
                 {product.code && <CodeBadge code={product.code} />}