feat: Step 1 - Project setup & smoke test

Initialize Next.js 16 (App Router) project with all core dependencies:
- Next.js, React 19, TypeScript configuration
- Mantine UI components (@mantine/core, @mantine/hooks)
- ATproto SDK for Bluesky integration
- SurrealDB client (updated to latest non-deprecated version)
- Vercel AI SDK with Google AI provider
- Deepgram SDK for voice-to-text
- React Three Fiber for 3D visualization
- UMAP.js for dimensionality reduction
- Magnitude test framework for E2E testing
- Playwright for browser automation

Created basic app structure with homepage displaying "Ponderants" text.
Configured magnitude.config.ts for testing framework.
Added .example.env with all required environment variables.

Test: Smoke test verifies app boots and renders homepage.
Status: ✓ Test passed (8.4s)

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

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

package.json

@@ -0,0 +1,46 @@
+{
+  "name": "ponderants",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint",
+    "test": "npx magnitude"
+  },
+  "dependencies": {
+    "@ai-sdk/google": "latest",
+    "@ai-sdk/react": "latest",
+    "@atproto/api": "latest",
+    "@deepgram/sdk": "latest",
+    "@mantine/core": "latest",
+    "@mantine/hooks": "latest",
+    "@react-three/drei": "latest",
+    "@react-three/fiber": "latest",
+    "ai": "latest",
+    "jsonwebtoken": "latest",
+    "next": "latest",
+    "react": "latest",
+    "react-dom": "latest",
+    "surrealdb": "latest",
+    "three": "latest",
+    "umap-js": "latest",
+    "zod": "latest"
+  },
+  "devDependencies": {
+    "@types/jsonwebtoken": "latest",
+    "@types/node": "latest",
+    "@types/react": "latest",
+    "@types/react-dom": "latest",
+    "eslint": "latest",
+    "eslint-config-next": "latest",
+    "jiti": "^2.6.1",
+    "magnitude-test": "latest",
+    "playwright": "^1.56.1",
+    "postcss": "latest",
+    "postcss-preset-mantine": "latest",
+    "postcss-simple-vars": "latest",
+    "typescript": "latest"
+  }
+}