```

feat: add line numbers to code blocks with gutter styling

- Implemented line number display with absolute positioned gutter (40px width, right-aligned text)
- Added dynamic padding to pre element based on showLineNumbers state (3.5rem left padding when enabled)
- Moved hljs import to top-level for better performance and removed redundant dynamic imports
- Added ViewEncapsulation.None to enable global hljs theme styling
- Enhanced gutter styling with semi-transparent background, border, and pointer

src/app/editor/components/block/blocks/code-block.component.ts

@@ -9,12 +9,14 @@ import {
   inject,
   HostListener,
   ChangeDetectionStrategy,
-  ChangeDetectorRef
+  ChangeDetectorRef,
+  ViewEncapsulation
 } from '@angular/core';
 import { CommonModule } from '@angular/common';
 import { FormsModule } from '@angular/forms';
 import { Block, CodeProps } from '../../../core/models/block.model';
 import { CodeThemeService } from '../../../services/code-theme.service';
+import hljs from 'highlight.js/lib/common';
 
 @Component({
   selector: 'app-code-block',
@@ -22,6 +24,7 @@ import { CodeThemeService } from '../../../services/code-theme.service';
   imports: [CommonModule, FormsModule],
   styleUrls: ['./code-themes.css'],
   changeDetection: ChangeDetectionStrategy.OnPush,
+  encapsulation: ViewEncapsulation.None,
   template: `
     <div class="relative group w-full">
       <!-- Header -->
@@ -352,10 +355,12 @@ import { CodeThemeService } from '../../../services/code-theme.service';
           class="rounded-b-md border border-t-0 border-border overflow-hidden transition-colors duration-200"
           [ngClass]="getThemeClass()"
         >
+          <div class="relative w-full">
             <pre
-            class="m-0 max-h-[400px] overflow-auto text-sm leading-6 px-3 py-3 custom-scrollbar"
+              class="m-0 max-h-[400px] overflow-auto text-sm leading-6 custom-scrollbar"
               [class.whitespace-pre-wrap]="props.enableWrap"
               [style.font-family]="getFontFamily()"
+              [style.padding]="props.showLineNumbers ? '12px 12px 12px 3.5rem' : '12px'"
             >
               @if (highlightedHtml) {
                 <code class="hljs block" [innerHTML]="highlightedHtml" [style.font-family]="getFontFamily()"></code>
@@ -365,6 +370,19 @@ import { CodeThemeService } from '../../../services/code-theme.service';
                 </code>
               }
             </pre>
+
+            @if (props.showLineNumbers) {
+              <div 
+                class="absolute top-0 left-0 py-3 w-10 text-right text-xs leading-6 text-neutral-500 pointer-events-none select-none border-r border-white/5 bg-black/5 h-full"
+                [style.font-family]="getFontFamily()"
+                aria-hidden="true"
+              >
+                @for (line of lineNumbers; track $index) {
+                  <div class="pr-2">{{ line }}</div>
+                }
+              </div>
+            }
+          </div>
         </div>
       }
     </div>
@@ -703,20 +721,16 @@ export class CodeBlockComponent implements AfterViewInit {
     this._lastHighlightSignature = signature;
 
     try {
-      // Use the common Highlight.js bundle (works better with modern bundlers)
-      const hljsModule = await import('highlight.js/lib/common');
-      const hljs: any = (hljsModule as any).default ?? hljsModule;
-
       let html: string;
       try {
-        const hasLang = !!(lang && typeof hljs.getLanguage === 'function' && hljs.getLanguage(lang));
+        const hasLang = !!(lang && typeof (hljs as any).getLanguage === 'function' && (hljs as any).getLanguage(lang));
         if (hasLang) {
-          html = hljs.highlight(code, { language: lang }).value;
+          html = (hljs as any).highlight(code, { language: lang }).value;
         } else {
-          html = hljs.highlightAuto(code).value;
+          html = (hljs as any).highlightAuto(code).value;
         }
       } catch {
-        html = hljs.highlightAuto(code).value;
+        html = (hljs as any).highlightAuto(code).value;
       }
 
       this.highlightedHtml = html;