fix: auto-approve clean content, fix AI moderation, show all contributions

- Auto-approve: clean submissions now default to 'approved' (not 'pending')
- Switch AI model from qwen3:4b to llama3.2 (qwen3 writes to thinking field, response always empty)
- AI now correctly flags spam, nonsense, and irrelevant content
- Admin: show all contribution types including timeline (was filtering them out)
- Add FamilyUploadSection to public page (was imported but never rendered)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/app/page.tsx

@@ -218,6 +218,9 @@ export default async function HomePage() {
       {/* Photo Upload */}
       <PhotoUploadSection />
 
+      {/* Family Upload */}
+      <FamilyUploadSection />
+
       {/* Memories */}
       <section id="erinnerungen">
         <MemorySection memories={combinedMemories} />