Initial commit: Publisher dashboard monorepo

Turborepo + Bun monorepo with:
- apps/publisher-dashboard: Svelte 5 SPA with SvelteKit, Tailwind CSS v4, shadcn-svelte
- packages/publisher-utils: Shared TypeScript utilities

Features:
- Performance dashboard page with metrics, charts, and data tables
- shadcn-svelte UI components with OKLCH color system
- Biome for linting/formatting with Svelte-specific overrides

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

turbo.json

@@ -0,0 +1,19 @@
+{
+  "$schema": "https://turbo.build/schema.json",
+  "tasks": {
+    "build": {
+      "dependsOn": ["^build"],
+      "outputs": ["dist/**", ".svelte-kit/**", "build/**"]
+    },
+    "dev": {
+      "cache": false,
+      "persistent": true
+    },
+    "typecheck": {
+      "dependsOn": ["^build"]
+    },
+    "clean": {
+      "cache": false
+    }
+  }
+}