feat(docker): add dev.sh with auto-funding and ATM app setup

- Add dev.sh script for managing regtest development environment
- Implement cmd_fund to fund ATM app owner via Lightning.Pub API
- Add --fund flag to cmd_up for automatic funding on startup
- Update setup_atm_app to write VITE_APP_ID to machine .env
- Fix Electron IPC to pass appId and extensionApiUrl to renderer
- Restructure repo from nested lamassu-next/ to root

The dev.sh script now supports:
- ./dev.sh up --fund  # Start regtest and auto-fund ATM
- ./dev.sh fund       # Fund existing ATM app
- ./dev.sh status     # Show environment status
- ./dev.sh reset      # Clean restart

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

packages/nostr-client/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "@lamassu/nostr-client",
+  "version": "0.1.0",
+  "description": "Nostr client library for Lamassu ATM",
+  "type": "module",
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
+  "scripts": {
+    "build": "tsc",
+    "dev": "tsc --watch",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "typecheck": "tsc --noEmit",
+    "lint": "eslint src/",
+    "validate-schemas": "tsx scripts/validate-schemas.ts"
+  },
+  "dependencies": {
+    "@noble/curves": "^2.0.1",
+    "@noble/hashes": "^2.0.1",
+    "@scure/base": "^1.2.6",
+    "@shocknet/clink-sdk": "^1.5.4",
+    "@stablelib/xchacha20": "^2.0.1",
+    "nostr-tools": "^2.10.0"
+  },
+  "devDependencies": {
+    "@types/node": "^22.19.7",
+    "qrcode": "^1.5.4",
+    "tsx": "^4.19.0",
+    "typescript": "^5.7.0",
+    "vitest": "^2.1.0",
+    "ws": "^8.19.0"
+  },
+  "peerDependencies": {
+    "typescript": "^5.0.0"
+  }
+}