fix: add Node.js 22 engine constraint to package.json

Adds missing engines field to enforce Node.js 22+ requirement that
was already implicitly needed by dependencies. Also updates all
documentation and CI workflows to reflect this requirement.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: nizos

.devcontainer/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:20
+FROM node:22
 
 ARG TZ
 ENV TZ="$TZ"

.devcontainer/README.md

@@ -13,7 +13,7 @@ A consistent, isolated environment for developing TDD Guard.
 
 | Component          | Purpose                                         |
 | ------------------ | ----------------------------------------------- |
-| Node.js 20         | Main CLI & Vitest/Jest reporters                |
+| Node.js 22         | Main CLI & Vitest/Jest reporters                |
 | Python 3.11 + pipx | Pytest reporter                                 |
 | PHP 8.2 + Composer | PHPUnit reporter                                |
 | Go 1.24            | Go reporter                                     |

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
           cache: npm
 
       - name: Setup PHP
@@ -54,7 +54,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
           cache: npm
 
       - name: Setup PHP
@@ -87,7 +87,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
           cache: npm
 
       - name: Install dependencies
@@ -106,7 +106,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
           cache: npm
 
       - name: Setup Go
@@ -138,7 +138,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
           cache: npm
 
       - name: Setup PHP

.github/workflows/security.yml

@@ -49,7 +49,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
           cache: npm
 
       - name: Install dependencies

DEVELOPMENT.md

@@ -4,11 +4,11 @@
 
 ### Main Tests
 
-- Node.js 18+ and npm
+- Node.js 22+ and npm
 
 ### Reporter Tests
 
-- Node.js 18+ and npm
+- Node.js 22+ and npm
 - Python 3.8+ (for pytest reporter)
 - PHP 8.1+ and Composer (for PHPUnit reporter)
 - Go 1.21+ (for Go reporter)

README.md

@@ -31,7 +31,7 @@ TDD Guard ensures Claude Code follows Test-Driven Development principles. When y
 
 ## Requirements
 
-- Node.js 18+
+- Node.js 22+
 - Claude Code or Anthropic API key
 - Test framework (Jest, Vitest, pytest, PHPUnit, Go 1.24+, or Rust with cargo/cargo-nextest)
 

package.json

@@ -19,6 +19,9 @@
     "code-quality",
     "linting"
   ],
+  "engines": {
+    "node": ">=22.0.0"
+  },
   "workspaces": [
     "reporters/vitest",
     "reporters/jest"