feat: integrate uload and picture, unify package naming

- Add uload project with apps/web structure
  - Reorganize from flat to monorepo structure
  - Remove PocketBase binary and local data
  - Update to pnpm and @uload/web namespace

- Add picture project to monorepo
  - Remove embedded git repository

- Unify all package names to @{project}/{app} schema:
  - @maerchenzauber/* (was @storyteller/*)
  - @manacore/* (was manacore-*, manacore)
  - @manadeck/* (was web, backend, manadeck)
  - @memoro/* (was memoro-web, landing, memoro)
  - @picture/* (already unified)
  - @uload/web

- Add convenient dev scripts for all apps:
  - pnpm dev:{project}:web
  - pnpm dev:{project}:landing
  - pnpm dev:{project}:mobile
  - pnpm dev:{project}:backend

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

uload/docs/features/ab-testing-test-urls.md

@@ -0,0 +1,56 @@
+# A/B Testing - Test URLs
+
+## Test URLs für verschiedene Varianten
+
+### Control (Baseline)
+
+- http://localhost:5173/ (kein Hash)
+- http://localhost:5173/?debug=true (mit Debug-Info)
+
+### Variant A - Value Focused
+
+- http://localhost:5173/#a1 (Generic Value)
+- http://localhost:5173/#a2 (Specific Value)
+- http://localhost:5173/#a3 (Transform Value)
+
+### Variant B - Social Proof
+
+- http://localhost:5173/#b1 (Numbers)
+- http://localhost:5173/#b2 (Logos)
+- http://localhost:5173/#b3 (Testimonial)
+
+### Variant C - Feature Focused
+
+- http://localhost:5173/#c1 (All-in-One)
+- http://localhost:5173/#c2 (QR Focus)
+- http://localhost:5173/#c3 (Integration)
+
+## Debug Mode
+
+Füge `?debug=true` zu jeder URL hinzu, um Debug-Informationen zu sehen:
+
+- http://localhost:5173/?debug=true
+- http://localhost:5173/#a1?debug=true
+
+## Force Variant
+
+Erzwinge eine spezifische Variante mit `?force=`:
+
+- http://localhost:5173/?force=a1
+- http://localhost:5173/?force=b2
+- http://localhost:5173/?force=control
+
+## Reset
+
+Lösche die Zuweisung und erhalte eine neue:
+
+- Öffne Debug-Modus: http://localhost:5173/?debug=true
+- Klicke auf "Reset & Reload" Button
+
+## Tracking Events
+
+Folgende Events werden an Umami gesendet:
+
+- `page_view_[variant]` - Beim Laden der Seite
+- `cta_click_[variant]` - Beim Klick auf CTA Button
+- `conversion_[variant]` - Beim Absenden des Formulars (wenn implementiert)