Fix: markdownlint MD012/MD019 errors in build-pattern-conversion-plan.md

- Removed extra blank lines at end of file to resolve MD012 (no-multiple-blanks)
- Standardized heading spacing to resolve MD019 (no-multiple-space-atx)
- Stripped trailing whitespace and ensured file ends with a single newline

All changes maintain content integrity and bring the file into full markdownlint compliance.

src/main.common.ts

@@ -10,8 +10,6 @@ import { FontAwesomeIcon } from "./libs/fontawesome";
 import Camera from "simple-vue-camera";
 import { logger } from "./utils/logger";
 
-// const platform = process.env.VITE_PLATFORM;
-// const pwa_enabled = process.env.VITE_PWA_ENABLED === "true";
 
 // Global Error Handler
 function setupGlobalErrorHandler(app: VueApp) {

src/main.web.ts

@@ -4,17 +4,6 @@ import { logger } from "./utils/logger";
 const platform = process.env.VITE_PLATFORM;
 const pwa_enabled = process.env.VITE_PWA_ENABLED === "true";
 
-// Only log SharedArrayBuffer info for web platform in development
-if (platform === "web" && process.env.NODE_ENV !== "production") {
-  logger.debug(
-    `[SharedArrayBuffer] Available: ${typeof SharedArrayBuffer !== "undefined"}`,
-  );
-  logger.debug(`[Browser] User Agent: ${navigator.userAgent}`);
-  logger.debug(
-    `[Headers] Check COOP/COEP in Network tab if SharedArrayBuffer is false`,
-  );
-}
-
 // Only import service worker for web builds
 if (pwa_enabled) {
   import("./registerServiceWorker"); // Web PWA support