fix: add husky install fallback for non-dev environments

Replace the inline 'husky install || exit 0' prepare script with a
dedicated .husky/install.mjs that skips installation cleanly in
production, CI, Docker, and HUSKY=0 environments.

Remove unused k6 performance test scripts and @types/k6 devDependency.

Closes #328

Author: Priyanshubhartistm

.changeset/chatty-steaks-fall.md

@@ -0,0 +1,5 @@
+---
+"nostream": patch
+---
+
+fix: prevent crash when husky is not available during setup

.husky/install.mjs

@@ -0,0 +1,19 @@
+import { existsSync } from 'node:fs';
+import { execSync } from 'node:child_process';
+
+// Skip Husky installation in environments where hooks are not needed
+if (
+  process.env.NODE_ENV === 'production' ||
+  process.env.CI === 'true' ||
+  process.env.HUSKY === '0' ||
+  !existsSync('.git')
+) {
+  process.exit(0);
+}
+
+try {
+  execSync('husky install', { stdio: 'ignore' });
+} catch {
+  // Husky is not available — skip silently (e.g., production/Docker)
+  process.exit(0);
+}

package.json

@@ -76,8 +76,6 @@
     "test:load": "node -r ts-node/register ./scripts/security-load-test.ts",
     "smoke:nip03": "node -r ts-node/register scripts/smoke-nip03.ts",
     "test:integration": "cucumber-js",
-    "test:performance:connection-rate-limit": "k6 run test/performance/connection-limiting-k6.ts",
-    "test:performance:message-rate-limit": "k6 run test/performance/message-limiting-k6.ts",
     "cover:integration": "nyc --report-dir .coverage/integration pnpm run test:integration -p cover",
     "export": "node --env-file-if-exists=.env -r ts-node/register src/scripts/export-events.ts",
     "docker:compose:start": "pnpm run cli -- start",
@@ -95,7 +93,7 @@
     "docker:cover:integration": "pnpm run docker:integration:run pnpm exec nyc --report-dir .coverage/integration pnpm run test:integration -- -p cover",
     "postdocker:integration:run": "docker compose -f ./test/integration/docker-compose.yml down",
     "prepack": "pnpm run build",
-    "prepare": "husky install || exit 0",
+    "prepare": "test -f .husky/install.mjs && node .husky/install.mjs || true",
     "changeset:version": "changeset version && pnpm install --lockfile-only",
     "changeset:publish": "changeset publish"
   },
@@ -126,7 +124,6 @@
     "@types/chai-as-promised": "^7.1.5",
     "@types/express": "4.17.21",
     "@types/js-yaml": "4.0.5",
-    "@types/k6": "^1.7.0",
     "@types/mocha": "^9.1.1",
     "@types/node": "^24.12.2",
     "@types/pg": "^8.6.5",

test/unit/husky/install.spec.ts

@@ -0,0 +1,57 @@
+import { expect } from 'chai'
+import fs from 'fs'
+import os from 'os'
+import path from 'path'
+import { spawnSync } from 'child_process'
+
+const projectRoot = process.cwd()
+const installScriptPath = path.join(projectRoot, '.husky', 'install.mjs')
+
+const runInstall = (cwd: string, env: NodeJS.ProcessEnv = {}) => {
+  return spawnSync('node', [installScriptPath], {
+    cwd,
+    env: {
+      ...process.env,
+      ...env,
+    },
+    encoding: 'utf-8',
+    timeout: 10_000,
+  })
+}
+
+describe('husky install script', () => {
+  it('exits successfully when .git is missing', () => {
+    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'nostream-husky-no-git-'))
+
+    try {
+      const result = runInstall(tmpDir)
+      expect(result.status).to.equal(0)
+    } finally {
+      fs.rmSync(tmpDir, { recursive: true, force: true })
+    }
+  })
+
+  it('exits successfully when HUSKY is disabled', () => {
+    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'nostream-husky-disabled-'))
+
+    try {
+      const result = runInstall(tmpDir, { HUSKY: '0' })
+      expect(result.status).to.equal(0)
+    } finally {
+      fs.rmSync(tmpDir, { recursive: true, force: true })
+    }
+  })
+
+  it('exits successfully when husky package is unavailable even if .git exists', function () {
+    this.timeout(15_000)
+    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'nostream-husky-missing-package-'))
+
+    try {
+      fs.mkdirSync(path.join(tmpDir, '.git'))
+      const result = runInstall(tmpDir)
+      expect(result.status).to.equal(0)
+    } finally {
+      fs.rmSync(tmpDir, { recursive: true, force: true })
+    }
+  })
+})