docs: add donation info + license headers to source files

README.md

@@ -193,3 +193,15 @@ For issues:
 - Check node agent logs for native messaging errors
 - Verify extension is loaded and enabled
 - Ensure node agent has `enable_browser: true` in config
+
+## Donate
+
+If you find this project useful, consider supporting its continued development:
+
+**Bitcoin (BTC)**: `bc1ql5klyv78t0a5g59y3tczv8ejy9l740x3zg0cge`  
+**Ethereum (ETH)**: `0x3f707d3543A6C301B3Bf47eBc4B469e017a119B4`  
+**Solana (SOL)**: `G7iZQ3iQ7k5t9E9g8Y7u6i5t4r3e2w1q0P9O8I7U6Y5`
+
+---
+
+*Copyright (c) 2026 Stefy (nextime) Lanza <stefy@nexlab.net>. All rights reserved.*

build.sh

 #!/bin/bash
+# Hermes Node Protocol
+# Copyright (c) 2026 Stefy (nextime) Lanza <stefy@nexlab.net>
+# All rights reserved.
+# 
+# This software is released under the MIT License with a copyleft clause.
+# See the LICENSE file for full terms.
 set -e
 
 echo "=== Building Hermes Node Chrome Extension ==="

hermes_browser_extension/background.js

+# Hermes Node Protocol
+# Copyright (c) 2026 Stefy (nextime) Lanza <stefy@nexlab.net>
+# All rights reserved.
+# 
+# This software is released under the MIT License with a copyleft clause.
+# See the LICENSE file for full terms.
 
 // Hermes Extension Background Service Worker
 // Provides bidirectional communication between CDP and content scripts

hermes_browser_extension/content.js

+# Hermes Node Protocol
+# Copyright (c) 2026 Stefy (nextime) Lanza <stefy@nexlab.net>
+# All rights reserved.
+# 
+# This software is released under the MIT License with a copyleft clause.
+# See the LICENSE file for full terms.
 
 // Hermes Content Script - runs in every page
 // Establishes communication channel with injected code

hermes_browser_extension/injected.js

+# Hermes Node Protocol
+# Copyright (c) 2026 Stefy (nextime) Lanza <stefy@nexlab.net>
+# All rights reserved.
+# 
+# This software is released under the MIT License with a copyleft clause.
+# See the LICENSE file for full terms.
 
 // Hermes Injected API - exposed to page JavaScript context
 // Allows page scripts to communicate with the extension and agent

hermes_browser_extension/manifest.json

+# Hermes Node Protocol
+# Copyright (c) 2026 Stefy (nextime) Lanza <stefy@nexlab.net>
+# All rights reserved.
+# 
+# This software is released under the MIT License with a copyleft clause.
+# See the LICENSE file for full terms.
 {
   "manifest_version": 3,
   "name": "Hermes Node Agent Extension",