Add Site Builder help docs and fix FloatingHelpButton paths

- Add HelpSiteBuilder.tsx with comprehensive documentation for the
  drag-and-drop page editor (components, publishing, settings)
- Fix FloatingHelpButton to use /dashboard/help/* paths on tenant sites
- Update HelpComprehensive and HelpAutomations to rename plugins to automations
- Add site-crawler utility with cross-subdomain redirect detection

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/tests/e2e/utils/crawler.ts

@@ -7,7 +7,7 @@ import { Page, BrowserContext } from '@playwright/test';
 
 export interface CrawlError {
   url: string;
-  type: 'console' | 'network' | 'broken-link' | 'page-error';
+  type: 'console' | 'network' | 'broken-link' | 'page-error' | 'redirect';
   message: string;
   details?: string;
   timestamp: Date;
@@ -33,6 +33,7 @@ export interface CrawlReport {
     networkErrors: number;
     brokenLinks: number;
     pageErrors: number;
+    redirects: number;
   };
 }
 
@@ -45,6 +46,8 @@ export interface CrawlerOptions {
   screenshotOnError?: boolean;
   screenshotDir?: string;
   verbose?: boolean;
+  /** Detect when page redirects to a different subdomain (e.g., tenant to public) */
+  detectCrossSubdomainRedirects?: boolean;
 }
 
 const DEFAULT_OPTIONS: CrawlerOptions = {
@@ -63,6 +66,7 @@ const DEFAULT_OPTIONS: CrawlerOptions = {
   screenshotOnError: false,
   screenshotDir: 'test-results/crawler-screenshots',
   verbose: false,
+  detectCrossSubdomainRedirects: false,
 };
 
 export class SiteCrawler {
@@ -114,6 +118,24 @@ export class SiteCrawler {
     }
   }
 
+  private getSubdomain(url: string): string | null {
+    try {
+      const parsed = new URL(url);
+      const hostname = parsed.hostname;
+      // Extract subdomain from *.lvh.me
+      if (hostname.endsWith('.lvh.me')) {
+        const parts = hostname.split('.');
+        if (parts.length >= 3) {
+          return parts[0];
+        }
+      }
+      // No subdomain (e.g., lvh.me itself)
+      return null;
+    } catch {
+      return null;
+    }
+  }
+
   private shouldCrawl(url: string): boolean {
     // Skip if already visited
     if (this.visited.has(url)) {
@@ -280,6 +302,23 @@ export class SiteCrawler {
         });
       }
 
+      // Check for cross-subdomain redirects
+      if (this.options.detectCrossSubdomainRedirects) {
+        const finalUrl = this.page.url();
+        const requestedSubdomain = this.getSubdomain(url);
+        const finalSubdomain = this.getSubdomain(finalUrl);
+
+        if (requestedSubdomain && requestedSubdomain !== finalSubdomain) {
+          errors.push({
+            url,
+            type: 'redirect',
+            message: `Redirected from ${requestedSubdomain}.lvh.me to ${finalSubdomain || 'root'}.lvh.me`,
+            details: `Final URL: ${finalUrl}`,
+            timestamp: new Date(),
+          });
+        }
+      }
+
       // Wait a bit for React to render and any async operations
       await this.page.waitForTimeout(500);
 
@@ -378,6 +417,7 @@ export class SiteCrawler {
       networkErrors: 0,
       brokenLinks: 0,
       pageErrors: 0,
+      redirects: 0,
     };
 
     for (const result of this.results) {
@@ -395,6 +435,9 @@ export class SiteCrawler {
           case 'page-error':
             summary.pageErrors++;
             break;
+          case 'redirect':
+            summary.redirects++;
+            break;
         }
       }
     }
@@ -427,7 +470,8 @@ export function formatReport(report: CrawlReport): string {
   output += `   Console errors:  ${report.summary.consoleErrors}\n`;
   output += `   Network errors:  ${report.summary.networkErrors}\n`;
   output += `   Broken links:    ${report.summary.brokenLinks}\n`;
-  output += `   Page errors:     ${report.summary.pageErrors}\n\n`;
+  output += `   Page errors:     ${report.summary.pageErrors}\n`;
+  output += `   Redirects:       ${report.summary.redirects}\n\n`;
 
   // List pages with errors
   const pagesWithErrors = report.results.filter(r => r.errors.length > 0);
@@ -443,7 +487,8 @@ export function formatReport(report: CrawlReport): string {
       for (const error of result.errors) {
         const icon = error.type === 'console' ? '⚠️' :
                      error.type === 'network' ? '🌐' :
-                     error.type === 'broken-link' ? '🔴' : '💥';
+                     error.type === 'broken-link' ? '🔴' :
+                     error.type === 'redirect' ? '↪️' : '💥';
         output += `   ${icon} [${error.type.toUpperCase()}] ${error.message}\n`;
         if (error.details) {
           output += `      Details: ${error.details.substring(0, 200)}\n`;