feat: update app.db and BACKLOG.md with new decisions and adjustments

- Updated the app.db file to reflect recent changes in the application state.
- Modified BACKLOG.md to include new entries regarding the removal of certain wizard steps, adjustments to priority chips, and the introduction of special quota conditions for candidates.
- Added details on the decision to link priority chips to data sources and clarified the implications for user experience and data handling.

src/components/ui/collapsible.tsx

@@ -0,0 +1,37 @@
+"use client"
+
+import { Collapsible as CollapsiblePrimitive } from "radix-ui"
+
+// shadcn `collapsible` (radix-ui tek paket). prompt-kit `steps.tsx` bunu ister;
+// stil taşımaz, açılma/kapanma animasyonu tw-animate-css'in
+// `animate-collapsible-down/up` sınıflarıyla içerikte verilir.
+
+function Collapsible({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.Root>) {
+  return <CollapsiblePrimitive.Root data-slot="collapsible" {...props} />
+}
+
+function CollapsibleTrigger({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.CollapsibleTrigger>) {
+  return (
+    <CollapsiblePrimitive.CollapsibleTrigger
+      data-slot="collapsible-trigger"
+      {...props}
+    />
+  )
+}
+
+function CollapsibleContent({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.CollapsibleContent>) {
+  return (
+    <CollapsiblePrimitive.CollapsibleContent
+      data-slot="collapsible-content"
+      {...props}
+    />
+  )
+}
+
+export { Collapsible, CollapsibleTrigger, CollapsibleContent }