chore: scaffold PYRE MVP monorepo (structure + docs)

pnpm + TypeScript workspace per design doc §13:
- apps/{web,api,worker} skeletons (Next.js 16, Fastify 5, BullMQ)
- packages/{core,solana,prometheus,db,config} (core has real types/DTOs;
  solana/prometheus are stubs)
- programs/pyre-core placeholder (future Anchor, v1.0)
- docs/: PYRE_MVP_DESIGN (canonical), ARCHITECTURE, SECURITY, TOKEN_CLASSIFICATION
- CLAUDE.md, README, .env.example (no private-key var by design)

Skeleton + docs only — no Solana/business logic yet. All workspaces typecheck clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/web/package.json

@@ -0,0 +1,34 @@
+{
+  "name": "@pyre/web",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "description": "PYRE web app — Next.js user-facing UI: landing, wallet connect, scanner, cleanup preview, receipt, Prometheus preview, admin review.",
+  "scripts": {
+    "build": "next build",
+    "dev": "next dev",
+    "typecheck": "tsc --noEmit",
+    "lint": "echo \"TODO: lint\"",
+    "test": "echo \"TODO: tests\""
+  },
+  "dependencies": {
+    "@pyre/core": "workspace:*",
+    "@solana/wallet-adapter-react": "^0.15.39",
+    "@solana/wallet-adapter-react-ui": "^0.9.39",
+    "@solana/wallet-adapter-wallets": "^0.19.38",
+    "@solana/web3.js": "^1.98.4",
+    "@tanstack/react-query": "^5.100.0",
+    "next": "^16.2.6",
+    "react": "^19.2.0",
+    "react-dom": "^19.2.0"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4.3.0",
+    "@types/node": "^22.10.0",
+    "@types/react": "^19.2.0",
+    "@types/react-dom": "^19.2.0",
+    "postcss": "^8.5.15",
+    "tailwindcss": "^4.3.0",
+    "typescript": "^5.7.2"
+  }
+}