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/apps/web/static/icons/apple-touch-icon.svg

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+<svg width="180" height="180" viewBox="0 0 180 180" xmlns="http://www.w3.org/2000/svg">
+  <rect width="180" height="180" fill="#3B82F6" rx="27"/>
+  <text x="50%" y="55%" font-family="system-ui, -apple-system, sans-serif" font-size="90px" font-weight="bold" fill="white" text-anchor="middle" dominant-baseline="middle">U</text>
+</svg>

uload/apps/web/static/icons/icon-128x128.svg

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+<svg width="128" height="128" viewBox="0 0 128 128" xmlns="http://www.w3.org/2000/svg">
+  <rect width="128" height="128" fill="#3B82F6" rx="19.2"/>
+  <text x="50%" y="55%" font-family="system-ui, -apple-system, sans-serif" font-size="64px" font-weight="bold" fill="white" text-anchor="middle" dominant-baseline="middle">U</text>
+</svg>

uload/apps/web/static/icons/icon-144x144.svg

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+<svg width="144" height="144" viewBox="0 0 144 144" xmlns="http://www.w3.org/2000/svg">
+  <rect width="144" height="144" fill="#3B82F6" rx="21.599999999999998"/>
+  <text x="50%" y="55%" font-family="system-ui, -apple-system, sans-serif" font-size="72px" font-weight="bold" fill="white" text-anchor="middle" dominant-baseline="middle">U</text>
+</svg>

uload/apps/web/static/icons/icon-152x152.svg

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+<svg width="152" height="152" viewBox="0 0 152 152" xmlns="http://www.w3.org/2000/svg">
+  <rect width="152" height="152" fill="#3B82F6" rx="22.8"/>
+  <text x="50%" y="55%" font-family="system-ui, -apple-system, sans-serif" font-size="76px" font-weight="bold" fill="white" text-anchor="middle" dominant-baseline="middle">U</text>
+</svg>

uload/apps/web/static/icons/icon-192x192.svg

@@ -0,0 +1,4 @@
+<svg width="192" height="192" viewBox="0 0 192 192" xmlns="http://www.w3.org/2000/svg">
+  <rect width="192" height="192" fill="#3B82F6" rx="28.799999999999997"/>
+  <text x="50%" y="55%" font-family="system-ui, -apple-system, sans-serif" font-size="96px" font-weight="bold" fill="white" text-anchor="middle" dominant-baseline="middle">U</text>
+</svg>

uload/apps/web/static/icons/icon-384x384.svg

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+<svg width="384" height="384" viewBox="0 0 384 384" xmlns="http://www.w3.org/2000/svg">
+  <rect width="384" height="384" fill="#3B82F6" rx="57.599999999999994"/>
+  <text x="50%" y="55%" font-family="system-ui, -apple-system, sans-serif" font-size="192px" font-weight="bold" fill="white" text-anchor="middle" dominant-baseline="middle">U</text>
+</svg>

uload/apps/web/static/icons/icon-512x512.svg

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+<svg width="512" height="512" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg">
+  <rect width="512" height="512" fill="#3B82F6" rx="76.8"/>
+  <text x="50%" y="55%" font-family="system-ui, -apple-system, sans-serif" font-size="256px" font-weight="bold" fill="white" text-anchor="middle" dominant-baseline="middle">U</text>
+</svg>

uload/apps/web/static/icons/icon-72x72.svg

@@ -0,0 +1,4 @@
+<svg width="72" height="72" viewBox="0 0 72 72" xmlns="http://www.w3.org/2000/svg">
+  <rect width="72" height="72" fill="#3B82F6" rx="10.799999999999999"/>
+  <text x="50%" y="55%" font-family="system-ui, -apple-system, sans-serif" font-size="36px" font-weight="bold" fill="white" text-anchor="middle" dominant-baseline="middle">U</text>
+</svg>

uload/apps/web/static/icons/icon-96x96.svg

@@ -0,0 +1,4 @@
+<svg width="96" height="96" viewBox="0 0 96 96" xmlns="http://www.w3.org/2000/svg">
+  <rect width="96" height="96" fill="#3B82F6" rx="14.399999999999999"/>
+  <text x="50%" y="55%" font-family="system-ui, -apple-system, sans-serif" font-size="48px" font-weight="bold" fill="white" text-anchor="middle" dominant-baseline="middle">U</text>
+</svg>

uload/apps/web/static/icons/icon-maskable-192x192.svg

@@ -0,0 +1,5 @@
+<svg width="192" height="192" viewBox="0 0 192 192" xmlns="http://www.w3.org/2000/svg">
+  <rect width="192" height="192" fill="#3B82F6"/>
+  <rect x="19.19999999999999" y="19.19999999999999" width="153.60000000000002" height="153.60000000000002" fill="#3B82F6" rx="23.040000000000003"/>
+  <text x="50%" y="55%" font-family="system-ui, -apple-system, sans-serif" font-size="76.80000000000001px" font-weight="bold" fill="white" text-anchor="middle" dominant-baseline="middle">U</text>
+</svg>

uload/apps/web/static/icons/icon-maskable-512x512.svg

@@ -0,0 +1,5 @@
+<svg width="512" height="512" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg">
+  <rect width="512" height="512" fill="#3B82F6"/>
+  <rect x="51.19999999999999" y="51.19999999999999" width="409.6" height="409.6" fill="#3B82F6" rx="61.44"/>
+  <text x="50%" y="55%" font-family="system-ui, -apple-system, sans-serif" font-size="204.8px" font-weight="bold" fill="white" text-anchor="middle" dominant-baseline="middle">U</text>
+</svg>