feat: implement bounty security service with vulnerability workflow and reward management

Author: BigMick03

microservices/bounty-security-service/.dockerignore

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+node_modules
+dist
+.git
+coverage
+.env
+*.log

microservices/bounty-security-service/.env.example

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+# Service
+SERVICE_PORT=3030
+NODE_ENV=development
+
+# PostgreSQL
+DB_HOST=localhost
+DB_PORT=5432
+DB_USER=postgres
+DB_PASSWORD=password
+DB_NAME=bounty_security_db
+DB_SYNC=true
+
+# Reputation settings
+REPUTATION_ACCEPTED_CRITICAL=100
+REPUTATION_ACCEPTED_HIGH=60
+REPUTATION_ACCEPTED_MEDIUM=30
+REPUTATION_ACCEPTED_LOW=10
+REPUTATION_REJECTED_PENALTY=5
+
+# Default reward tiers (USD) — used when a bounty has no per-severity tier
+DEFAULT_REWARD_CRITICAL=5000
+DEFAULT_REWARD_HIGH=2000
+DEFAULT_REWARD_MEDIUM=750
+DEFAULT_REWARD_LOW=250
+DEFAULT_REWARD_INFO=50
+
+# Workflow SLAs (hours) — for monitoring, not enforcement
+SLA_TRIAGE_HOURS=48
+SLA_VERIFY_HOURS=120

microservices/bounty-security-service/.gitignore

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+node_modules
+dist
+coverage
+*.env
+.env
+!.env.example

microservices/bounty-security-service/.prettierrc

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+{ "singleQuote": true, "trailingComma": "all" }

microservices/bounty-security-service/Dockerfile

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+FROM node:20-alpine AS builder
+WORKDIR /usr/src/app
+COPY package.json package-lock.json* ./
+RUN npm install
+COPY . .
+RUN npm run build
+
+FROM node:20-alpine AS runner
+WORKDIR /usr/src/app
+COPY package.json package-lock.json* ./
+RUN npm install --omit=dev
+COPY --from=builder /usr/src/app/dist ./dist
+EXPOSE 3030
+CMD ["node", "dist/main"]

microservices/bounty-security-service/README.md

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+# Bounty Security Service
+
+A NestJS microservice for managing a security bug-bounty program end-to-end:
+
+- Vulnerability reports submitted by security researchers
+- Automated **severity assessment** (CVSS-aware, explainable)
+- Bounty programs with configurable **reward tiers** per severity
+- Strict **workflow state machine**: `NEW → TRIAGED → VERIFIED → FIXED`
+- Resettable **researcher reputation** (streaks, ranks, lifetime earnings)
+- **Reward distribution** workflow: `PENDING → APPROVED → PAID`
+- **Leaderboards** — top researchers globally, per-bounty, or per time window
+- Independent PostgreSQL database, deployable with `docker compose up`
+
+## Quick start
+
+```bash
+cp .env.example .env
+# (edit DB creds if you want)
+docker compose up --build
+# -> http://localhost:3030/api (Swagger)
+# -> http://localhost:3030/health
+```
+
+For local development without Docker:
+
+```bash
+npm install
+DB_HOST=localhost npm run start:dev
+```
+
+## Architecture
+
+```
+src/
+├── entities/
+│   ├── report.entity.ts          # VulnerabilityReport (the workflow doc)
+│   ├── bounty.entity.ts          # Bounty (scope, tiers, lifecycle)
+│   ├── reward.entity.ts          # Reward (PENDING → APPROVED → PAID)
+│   ├── researcher.entity.ts      # Researcher (reputation snapshot)
+│   └── report-status.enum.ts     # SeverityTier, ReportStatus, RewardStatus...
+├── dto/                          # class-validator DTOs grouped by feature
+├── services/
+│   ├── severity.service.ts       # CVSS-aware severity engine
+│   ├── reports.service.ts        # Submission + workflow transitions
+│   ├── bounties.service.ts       # Bounty CRUD + reward tier resolution
+│   ├── rewards.service.ts        # Reward lifecycle + researcher earnings
+│   ├── researchers.service.ts    # Researcher CRUD + reputation tracking
+│   └── leaderboard.service.ts    # Rankings (by reputation / by bounty)
+├── controllers/
+│   ├── reports.controller.ts
+│   ├── bounties.controller.ts
+│   ├── researchers.controller.ts
+│   ├── rewards.controller.ts
+│   ├── leaderboard.controller.ts
+│   └── health.controller.ts
+├── app.module.ts
+└── main.ts                       # Bootstrap w/ Swagger + ValidationPipe
+```
+
+## REST Endpoints (highlights)
+
+| Method | Path                                  | Description                                |
+| ------ | ------------------------------------- | ------------------------------------------ |
+| `POST` | `/reports`                            | Submit a vulnerability report              |
+| `POST` | `/reports/:id/transition`             | Walk a report through the workflow         |
+| `POST` | `/bounties`                           | Create a bounty program                    |
+| `GET`  | `/bounties/by-slug/:slug`             | Look up a bounty by URL slug               |
+| `POST` | `/researchers`                        | Register a researcher                      |
+| `PATCH`| `/rewards/:id/approve`                | Approve a pending reward                   |
+| `PATCH`| `/rewards/:id/pay`                    | Mark an approved reward paid               |
+| `GET`  | `/leaderboard/researchers?period=week`| Top researchers (time-window scoped)       |
+| `GET`  | `/leaderboard/bounties/:id/researchers` | Top researchers per bounty              |
+| `GET`  | `/health`                             | Liveness + stat snapshot                   |
+
+Open `/api` for full Swagger.
+
+## Workflow
+
+```
+              ┌─────────┐
+              │   NEW   │  ← researcher submits report
+              └────┬────┘
+                   │ triage
+       ┌───────────┼─────────────┐
+       ▼           ▼             ▼
+  ┌────────┐  ┌─────────┐   ┌──────────┐
+  │TRIAGED │  │REJECTED │   │DUPLICATE │
+  └────┬───┘  └─────────┘   └──────────┘
+       │ verified
+       ▼
+  ┌─────────┐
+  │VERIFIED │  ← severity locked, reputation credited
+  └────┬────┘
+       │ patch deployed
+       ▼
+   ┌───────┐
+   │ FIXED │  ← reward row auto-created in PENDING
+   └───────┘
+```
+
+State transitions are enforced by the `TRANSITIONS` matrix in
+`services/reports.service.ts`. Any `VALID` transition also triggers:
+
+- **TRIAGED** → severity is recomputed by the engine; rationale stored on the row.
+- **VERIFIED / FIXED / REJECTED / DUPLICATE** → researcher reputation and streak are updated.
+- **FIXED** → a `Reward` row is created at `PENDING` with the bounty-tier midpoint.
+
+## Severity assessment
+
+`SeverityService.assess()` takes the researcher's claimed severity, an optional
+CVSS score or vector, the affected component, and a high-level impact tag.
+It folds in component criticality (auth/payment/admin… get a 1.25× boost) and
+an impact multiplier (RCE = 1.5×, best-practice = 0.5×).
+
+Output:
+
+```ts
+{
+  severity: 'critical' | 'high' | 'medium' | 'low' | 'info',
+  score: 0–100,
+  rationale: {
+    cvss?, componentBoost, impactMultiplier, notes: string[]
+  }
+}
+```
+
+The full rationale is persisted on the report (`severityRationale`) so an
+auditor can later see *why* a severity was assigned.
+
+## Reputation
+
+Points awarded per accepted report, configurable via env:
+
+| Severity | Default Δ |
+| -------- | --------- |
+| CRITICAL | +100 |
+| HIGH     | +60  |
+| MEDIUM   | +30  |
+| LOW      | +10  |
+| REJECTED | -5   |
+
+Researcher ranks are derived from reputation:
+
+| Reputation | Rank      |
+| ---------- | --------- |
+| ≥ 5000     | diamond   |
+| ≥ 2000     | platinum  |
+| ≥ 1000     | gold      |
+| ≥ 300      | silver    |
+| else       | bronze    |
+
+## Reward tiers
+
+Bounty authors configure a tier per severity:
+
+```json
+{
+  "tiers": [
+    { "severity": "critical", "minAmount": 5000, "maxAmount": 10000, "currency": "USD" },
+    { "severity": "high",     "minAmount": 1000, "maxAmount": 2500,  "currency": "USD" },
+    { "severity": "medium",   "minAmount": 250,  "maxAmount": 750,   "currency": "USD" }
+  ]
+}
+```
+
+If a bounty has no tiers, the global defaults from `.env` are applied.
+The reward service uses the tier midpoint as the suggested payout, so the
+security team can adjust before approving.
+
+## Environment variables
+
+See `.env.example`. Notable knobs:
+
+- `DEFAULT_REWARD_{CRITICAL|HIGH|MEDIUM|LOW|INFO}` — global fallback tier amounts.
+- `REPUTATION_ACCEPTED_*`, `REPUTATION_REJECTED_PENALTY` — reputation deltas.
+- `SLA_TRIAGE_HOURS`, `SLA_VERIFY_HOURS` — informational SLAs (used by future reporting).
+- `DB_SYNC=true` — for dev only. In production, prefer proper TypeORM migrations.
+
+## Tests
+
+```bash
+npm test
+```
+
+Coverage focuses on:
+
+- `SeverityService` — severity boundaries, CVSS parsing, overrides.
+- `ReportsService` — state machine enforcement, audit trail, reward auto-creation.
+
+## Production hardening
+
+This scaffold uses `DB_SYNC=true` for local development. For production:
+
+1. Disable `DB_SYNC`, generate real TypeORM migrations (`migration:generate`).
+2. Move `transactionRef` integration to your real payment provider (Tremendous, Coinbase Commerce, etc.) behind an outbox pattern.
+3. Add rate-limiting + CAPTCHA on `/reports` to deflect spam submissions.
+4. Enforce content security on `/reports` — restrict file sizes, mime types, and run uploaded PoCs through a malware scanner.
+5. Add SSO / `researcher_handle` gating through your identity service before awarding rewards.

microservices/bounty-security-service/docker-compose.yml

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+version: '3.9'
+
+services:
+  bounty-security-service:
+    build: .
+    container_name: bounty-security-service
+    ports:
+      - "3030:3030"
+    environment:
+      - SERVICE_PORT=3030
+      - NODE_ENV=development
+      - DB_HOST=postgres
+      - DB_PORT=5432
+      - DB_USER=postgres
+      - DB_PASSWORD=password
+      - DB_NAME=bounty_security_db
+      - DB_SYNC=true
+      - REPUTATION_ACCEPTED_CRITICAL=100
+      - REPUTATION_ACCEPTED_HIGH=60
+      - REPUTATION_ACCEPTED_MEDIUM=30
+      - REPUTATION_ACCEPTED_LOW=10
+      - REPUTATION_REJECTED_PENALTY=5
+      - DEFAULT_REWARD_CRITICAL=5000
+      - DEFAULT_REWARD_HIGH=2000
+      - DEFAULT_REWARD_MEDIUM=750
+      - DEFAULT_REWARD_LOW=250
+      - DEFAULT_REWARD_INFO=50
+      - SLA_TRIAGE_HOURS=48
+      - SLA_VERIFY_HOURS=120
+    depends_on:
+      postgres:
+        condition: service_healthy
+    restart: unless-stopped
+
+  postgres:
+    image: postgres:15-alpine
+    container_name: bounty-security-postgres
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: password
+      POSTGRES_DB: bounty_security_db
+    ports:
+      - "5437:5432"
+    volumes:
+      - bounty_pg_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+volumes:
+  bounty_pg_data:

microservices/bounty-security-service/nest-cli.json

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+{ "collection": "@nestjs/schematics", "sourceRoot": "src" }