release: adjust version to v3.6.6 based on release scope preferences

Author: ThisIs-Developer

CHANGELOG.md

@@ -3,7 +3,7 @@
 All notable code changes to **Markdown Viewer** are documented here.
 Non-code commits (documentation, planning, README-only updates) are excluded.
 
-## v3.7.0
+## v3.6.6
 
 - **Description:** Implemented extensive security hardening, accessibility remediation, and high-performance user experience upgrades. 
   - **Security (PR 130):** Hardened offline desktop-app configuration by restricting the WebSocket communication server, enabling system process automatic cleanup on window close, and implementing secure build-time cryptographic dependency checks verifying SHA-384 integrity parameters of external assets.

desktop-app/resources/js/script.js

@@ -9,7 +9,7 @@ document.addEventListener("DOMContentLoaded", function () {
 
   // View Mode State - Story 1.1
   let currentViewMode = 'split'; // 'editor', 'split', or 'preview'
-  const APP_VERSION = '3.7.0';
+  const APP_VERSION = '3.6.6';
   let activeModal = null;
   let lastFocusedElement = null;
   let isFindModalOpen = false;

script.js

@@ -9,7 +9,7 @@ document.addEventListener("DOMContentLoaded", function () {
 
   // View Mode State - Story 1.1
   let currentViewMode = 'split'; // 'editor', 'split', or 'preview'
-  const APP_VERSION = '3.7.0';
+  const APP_VERSION = '3.6.6';
   let activeModal = null;
   let lastFocusedElement = null;
   let isFindModalOpen = false;

sw.js

@@ -1,4 +1,4 @@
-const CACHE_NAME = 'markdown-viewer-cache-v3.7.0';
+const CACHE_NAME = 'markdown-viewer-cache-v3.6.6';
 const ASSETS = [
   './',
   './index.html',