feat: Phase 1 MVP — complete AgentIdP implementation

Implements all P0 features per OpenSpec change phase-1-mvp-implementation:
- Agent Registry Service (CRUD) — full lifecycle management
- OAuth 2.0 Token Service (Client Credentials flow)
- Credential Management (generate, rotate, revoke)
- Immutable Audit Log Service

Tech: Node.js 18+, TypeScript 5.3+ strict, Express 4.18+, PostgreSQL 14+, Redis 7+
Standards: OpenAPI 3.0 specs, DRY/SOLID, zero `any` types
Quality: 18 unit test suites, 244 tests passing, 97%+ coverage
OpenAPI: 4 complete specs (14 endpoints total)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -0,0 +1,56 @@
+{
+  "name": "sentryagent-idp",
+  "version": "1.0.0",
+  "description": "SentryAgent.ai Agent Identity Provider (AgentIdP)",
+  "main": "dist/server.js",
+  "scripts": {
+    "build": "tsc",
+    "start": "node dist/server.js",
+    "dev": "ts-node src/server.ts",
+    "test": "jest",
+    "test:unit": "jest tests/unit",
+    "test:integration": "jest tests/integration",
+    "db:migrate": "ts-node scripts/migrate.ts",
+    "lint": "eslint src --ext .ts",
+    "format": "prettier --write src/**/*.ts"
+  },
+  "dependencies": {
+    "bcryptjs": "^2.4.3",
+    "cors": "^2.8.5",
+    "dotenv": "^16.4.5",
+    "express": "^4.18.3",
+    "helmet": "^7.1.0",
+    "joi": "^17.12.3",
+    "jsonwebtoken": "^9.0.2",
+    "morgan": "^1.10.0",
+    "pg": "^8.11.3",
+    "pino": "^8.19.0",
+    "pino-http": "^9.0.0",
+    "redis": "^4.6.13",
+    "uuid": "^9.0.1"
+  },
+  "devDependencies": {
+    "@types/bcryptjs": "^2.4.6",
+    "@types/cors": "^2.8.17",
+    "@types/express": "^4.17.21",
+    "@types/jest": "^29.5.12",
+    "@types/jsonwebtoken": "^9.0.6",
+    "@types/morgan": "^1.9.9",
+    "@types/node": "^20.12.7",
+    "@types/pg": "^8.11.5",
+    "@types/supertest": "^6.0.2",
+    "@types/uuid": "^9.0.8",
+    "@typescript-eslint/eslint-plugin": "^7.8.0",
+    "@typescript-eslint/parser": "^7.8.0",
+    "eslint": "^8.57.0",
+    "jest": "^29.7.0",
+    "prettier": "^3.2.5",
+    "supertest": "^6.3.4",
+    "ts-jest": "^29.1.2",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.4.5"
+  },
+  "engines": {
+    "node": ">=18.0.0"
+  }
+}