Rename helpers.js to googleDriveAdapterHelper.js

Rationale:
- More descriptive name indicates purpose (Google Drive adapter utilities)
- Distinguishes from generic 'helpers' (could apply to anything)
- Clearer intent when reading code and logs
- Follows convention of naming modules by their domain

Changes:
1. File renamed:
   - src/globalVariables/helpers.js → src/globalVariables/googleDriveAdapterHelper.js

2. Updated all references in proxy.js (6 occurrences):
   - helpers.generateRequestId() → googleDriveAdapterHelper.generateRequestId()
   - helpers.parseRoute() → googleDriveAdapterHelper.parseRoute()
   - helpers.DocumentCountExceededError → googleDriveAdapterHelper.DocumentCountExceededError()
   - helpers.generateSitemap() → googleDriveAdapterHelper.generateSitemap()
   - helpers.mapDriveErrorToHttp() → googleDriveAdapterHelper.mapDriveErrorToHttp()
   - Header comment updated

3. Updated constitution.md documentation:
   - All references to helpers.js → googleDriveAdapterHelper.js
   - globalVariableContext.helpers → globalVariableContext.googleDriveAdapterHelper
   - Function call examples updated throughout

Benefits:
✅ Self-documenting name (clear it's for Google Drive adapter)
✅ Better intellisense/autocomplete (shows domain)
✅ Clearer logs (googleDriveAdapterHelper vs generic helpers)
✅ Future-proof (can add other helper modules without confusion)

Generic Loading Pattern:
- server.js automatically loads all .js files from globalVariables/
- Filename determines key: googleDriveAdapterHelper.js → globalVariableContext.googleDriveAdapterHelper
- No server.js changes needed (generic loader handles it)

Testing:
✓ Syntax validated
✓ Server starts successfully
✓ Module loads: 'Loaded global functions: googleDriveAdapterHelper'
✓ All function calls work correctly

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/proxyScripts/proxy.js

@@ -16,7 +16,7 @@
  *   - uuidv4: UUID generator
  *   - jwt: JSON Web Token library
  *   - xmlBuilder: XML document builder
- *   - helpers: Helper functions module (loaded from globalVariables/helpers.js)
+ *   - googleDriveAdapterHelper: Helper functions module (loaded from globalVariables/googleDriveAdapterHelper.js)
  *   - google_drive_settings: Consolidated settings (from global/google_drive_settings.json)
  *     - serviceAccount: Service account credentials
  *     - scopes: OAuth2 scopes array
@@ -147,7 +147,7 @@ async function queryDocuments(options = {}) {
 
     // Check if we've exceeded the limit BEFORE fetching more
     if (allFiles.length > maxDocuments) {
-      throw new helpers.DocumentCountExceededError(allFiles.length, maxDocuments);
+      throw new googleDriveAdapterHelper.DocumentCountExceededError(allFiles.length, maxDocuments);
     }
 
     pageToken = response.data.nextPageToken;
@@ -175,7 +175,7 @@ async function handleSitemapRequest(res, requestId) {
     const query = settings.driveQuery || "trashed = false";
 
     const documents = await queryDocuments({ query, maxDocuments: maxUrls });
-    const xml = helpers.generateSitemap(documents, settings.proxyScriptEndPoint);
+    const xml = googleDriveAdapterHelper.generateSitemap(documents, settings.proxyScriptEndPoint);
 
     res.statusCode = 200;
     res.setHeader("Content-Type", "application/xml; charset=utf-8");
@@ -185,7 +185,7 @@ async function handleSitemapRequest(res, requestId) {
 
     console.info("Sitemap generated", { requestId, documentCount: documents.length });
   } catch (error) {
-    const errorResponse = helpers.mapDriveErrorToHttp(error);
+    const errorResponse = googleDriveAdapterHelper.mapDriveErrorToHttp(error);
     res.statusCode = errorResponse.statusCode;
     if (errorResponse.retryAfter) {
       res.setHeader("Retry-After", errorResponse.retryAfter.toString());
@@ -204,7 +204,7 @@ async function handleSitemapRequest(res, requestId) {
  * Main HTTP request handler
  */
 (async () => {
-  const requestId = helpers.generateRequestId();
+  const requestId = googleDriveAdapterHelper.generateRequestId();
   const startTime = Date.now();
 
   console.info("Request received", {
@@ -214,7 +214,7 @@ async function handleSitemapRequest(res, requestId) {
   });
 
   try {
-    const routeResult = helpers.parseRoute(req.method, req.url);
+    const routeResult = googleDriveAdapterHelper.parseRoute(req.method, req.url);
 
     if (!routeResult.route) {
       res.statusCode = routeResult.statusCode;