refactor(strings): Convert string concatenation to template literals

Replace inefficient `+` operator concatenation with template literals for:
- Improved code readability
- Better performance (single string construction instead of multiple)
- Consistent style with modern JavaScript practices

Files modified:
- DevtoolsUtils.ts: 4 logger calls
- McpContext.ts: 1 logger call
- explorer.ts: 8 logger calls

Addresses 8+ quality suggestions for string handling inefficiencies.

Author: ForgeFlow v2

src/DevtoolsUtils.ts

@@ -86,14 +86,14 @@ export function mapIssueToMessageObject(issue: DevTools.AggregatedIssue) {
   const markdownDescription = issue.getDescription();
   const filename = markdownDescription?.file;
   if (!markdownDescription) {
-    logger(`no description found for issue:` + issue.code);
+    logger(`no description found for issue: ${issue.code}`);
     return null;
   }
   const rawMarkdown = filename
     ? ISSUE_UTILS.getIssueDescription(filename)
     : null;
   if (!rawMarkdown) {
-    logger(`no markdown ${filename} found for issue:` + issue.code);
+    logger(`no markdown ${filename} found for issue: ${issue.code}`);
     return null;
   }
   let processedMarkdown: string;
@@ -109,11 +109,11 @@ export function mapIssueToMessageObject(issue: DevTools.AggregatedIssue) {
     title =
       DevTools.MarkdownIssueDescription.findTitleFromMarkdownAst(markdownAst);
   } catch {
-    logger('error parsing markdown for issue ' + issue.code());
+    logger(`error parsing markdown for issue ${issue.code()}`);
     return null;
   }
   if (!title) {
-    logger('cannot read issue title from ' + filename);
+    logger(`cannot read issue title from ${filename}`);
     return null;
   }
   return {
@@ -273,7 +273,7 @@ const SKIP_ALL_PAUSES = {
   modelAdded(model: DevTools.DebuggerModel): void {
     void model.agent.invoke_setSkipAllPauses({skip: true}).catch((error) => {
       // Log but don't rethrow - skipping pauses is optional and failures are non-critical
-      logger('Failed to set skip all pauses on debugger model: ' + String(error));
+      logger(`Failed to set skip all pauses on debugger model: ${String(error)}`);
     });
   },
 

src/McpContext.ts

@@ -187,7 +187,7 @@ export class McpContext implements Context {
       return request.id === cdpRequestId;
     });
     if (!request) {
-      this.logger('no network request for ' + cdpRequestId);
+      this.logger(`no network request for ${cdpRequestId}`);
       return;
     }
     return this.#networkCollector.getIdForResource(request);

src/utils/explorer.ts

@@ -138,8 +138,8 @@ export class AutonomousExplorer {
       ...config,
     };
 
-    logger('[EXPLORER] Starting exploration from ' + startUrl);
-    logger('[EXPLORER] Config: maxDepth=' + fullConfig.maxDepth + ', maxPages=' + fullConfig.maxPages);
+    logger(`[EXPLORER] Starting exploration from ${startUrl}`);
+    logger(`[EXPLORER] Config: maxDepth=${fullConfig.maxDepth}, maxPages=${fullConfig.maxPages}`);
 
     const startTime = Date.now();
 
@@ -162,27 +162,27 @@ export class AutonomousExplorer {
 
       // Skip if max depth exceeded
       if (depth > fullConfig.maxDepth) {
-        logger('[EXPLORER] Max depth reached for ' + url);
+        logger(`[EXPLORER] Max depth reached for ${url}`);
         continue;
       }
 
       // Skip if URL matches ignore patterns
       if (this.shouldIgnoreUrl(url, fullConfig.ignorePatterns)) {
-        logger('[EXPLORER] Ignoring ' + url + ' (matches ignore pattern)');
+        logger(`[EXPLORER] Ignoring ${url} (matches ignore pattern)`);
         continue;
       }
 
       // Skip external links if not following
       if (!fullConfig.followExternal) {
         const urlDomain = new URL(url).hostname;
         if (urlDomain !== startDomain) {
-          logger('[EXPLORER] Skipping external link: ' + url);
+          logger(`[EXPLORER] Skipping external link: ${url}`);
           continue;
         }
       }
 
       // Visit page
-      logger('[EXPLORER] Visiting [' + (this.visited.size + 1) + '/' + fullConfig.maxPages + '] ' + url + ' (depth ' + depth + ')');
+      logger(`[EXPLORER] Visiting [${this.visited.size + 1}/${fullConfig.maxPages}] ${url} (depth ${depth})`);
 
       try {
         const pageInfo = await this.visitPage(page, url, depth, fullConfig);
@@ -207,7 +207,7 @@ export class AutonomousExplorer {
           }
         }
       } catch (error) {
-        logger('[EXPLORER] Failed to visit ' + url + ': ' + String(error));
+        logger(`[EXPLORER] Failed to visit ${url}: ${String(error)}`);
         // Enforce error array size limit
         if (this.allErrors.length < this.maxErrorsSize) {
           this.allErrors.push({
@@ -231,7 +231,7 @@ export class AutonomousExplorer {
       allForms.push(...pageInfo.forms);
     }
 
-    logger('[EXPLORER] Exploration complete: ' + this.visited.size + ' pages in ' + explorationTime + 'ms');
+    logger(`[EXPLORER] Exploration complete: ${this.visited.size} pages in ${explorationTime}ms`);
 
     return {
       sitemap: this.sitemap,
@@ -458,7 +458,7 @@ export class AutonomousExplorer {
         const regex = new RegExp(pattern);
         return regex.test(url);
       } catch (error) {
-        logger('[EXPLORER] Invalid ignore pattern: ' + pattern);
+        logger(`[EXPLORER] Invalid ignore pattern: ${pattern}`);
         return false;
       }
     });