add CLI validators in Node.js, PowerShell, and Bash

Move validate.js to validators/nodejs/ and add equivalent
validators for PowerShell and Bash. Each includes a README
with usage instructions and requirements.

1 files changed, 37 insertions, 0 deletions

diff --git a/validators/nodejs/README.md b/validators/nodejs/README.md
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+# Node.js Validator
+
+A zero-dependency Node.js CLI tool for validating `.gitinfo` files.
+
+## Requirements
+
+- Node.js 14+
+
+## Usage
+
+```bash
+# Validate .gitinfo in current directory
+node validate.js
+
+# Validate a specific file
+node validate.js path/to/.gitinfo
+```
+
+## Features
+
+- Parses JSONC (strips `//` and `/* */` comments)
+- Validates against the gitinfo JSON Schema
+- Checks types, formats (URI, email), and patterns
+- Enforces `additionalProperties: false`
+- Returns exit code 0 on success, 1 on failure
+
+## Example Output
+
+```
+✓ .gitinfo is valid
+```
+
+```
+Validation failed for .gitinfo:
+  - .root: invalid URI "not-a-url"
+  - root: unknown property "invalid_field"
+```