Refactor frontend components to use new icon imports and improve default values

- Updated `EnhancedMetricCard` to set a default accent color to blue.
- Replaced `lucide-react` icons with custom icons in `LinkResults`, `OptimizationScores`, and various pages in the Automation and Optimizer sections.
- Enhanced button layouts in `AutomationRules`, `Tasks`, and `ContentSelector` for better alignment and user experience.
- Improved loading indicators across components for a more consistent UI experience.

frontend/src/pages/Optimizer/AnalysisPreview.tsx

@@ -6,7 +6,7 @@ import { optimizerApi } from '../../api/optimizer.api';
 import { fetchContent, Content as ContentType } from '../../services/api';
 import { useToast } from '../../components/ui/toast/ToastContainer';
 import { OptimizationScores } from '../../components/optimizer/OptimizationScores';
-import { Loader2, ArrowLeft } from 'lucide-react';
+import { ArrowLeftIcon, BoltIcon } from '../../icons';
 
 export default function AnalysisPreview() {
   const { id } = useParams<{ id: string }>();
@@ -63,19 +63,26 @@ export default function AnalysisPreview() {
       <PageMeta title="Content Analysis" description="Preview content optimization scores" />
       
       <div className="space-y-6">
-        <PageHeader
-          title="Content Analysis"
-          description="Preview optimization scores without optimizing"
-          actions={
-            <button
-              onClick={() => navigate(-1)}
-              className="inline-flex items-center gap-2 px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg hover:bg-gray-50 dark:hover:bg-gray-800 transition-colors"
-            >
-              <ArrowLeft className="w-4 h-4" />
-              Back
-            </button>
-          }
-        />
+        <div className="flex items-center justify-between mb-6">
+          <PageHeader
+            title="Content Analysis"
+            lastUpdated={new Date()}
+            badge={{
+              icon: <BoltIcon />,
+              color: 'orange',
+            }}
+          />
+          <button
+            onClick={() => navigate(-1)}
+            className="inline-flex items-center gap-2 px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg hover:bg-gray-50 dark:hover:bg-gray-800 transition-colors"
+          >
+            <ArrowLeftIcon className="w-4 h-4" />
+            Back
+          </button>
+        </div>
+        <p className="text-gray-600 dark:text-gray-400 mb-6">
+          Preview optimization scores without optimizing
+        </p>
 
         {loading || analyzing ? (
           <div className="text-center py-12">

frontend/src/pages/Optimizer/ContentSelector.tsx

@@ -9,7 +9,7 @@ import { SourceBadge, ContentSource } from '../../components/content/SourceBadge
 import { SyncStatusBadge, SyncStatus } from '../../components/content/SyncStatusBadge';
 import { ContentFilter, FilterState } from '../../components/content/ContentFilter';
 import { OptimizationScores } from '../../components/optimizer/OptimizationScores';
-import { Zap, Loader2, CheckCircle2 } from 'lucide-react';
+import { BoltIcon, CheckCircleIcon } from '../../icons';
 import { useSectorStore } from '../../store/sectorStore';
 import { usePageSizeStore } from '../../store/pageSizeStore';
 
@@ -146,42 +146,49 @@ export default function OptimizerContentSelector() {
       <PageMeta title="Optimize Content" description="Select and optimize content for SEO and engagement" />
       
       <div className="space-y-6">
-        <PageHeader
-          title="Optimize Content"
-          description="Select content to optimize for SEO, readability, and engagement"
-          actions={
-            <div className="flex items-center gap-4">
-              <select
-                value={entryPoint}
-                onChange={(e) => setEntryPoint(e.target.value as EntryPoint)}
-                className="px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-800 text-gray-900 dark:text-white"
-              >
-                <option value="auto">Auto-detect</option>
-                <option value="writer">From Writer</option>
-                <option value="wordpress">From WordPress</option>
-                <option value="external">From External</option>
-                <option value="manual">Manual</option>
-              </select>
-              <button
-                onClick={handleBatchOptimize}
-                disabled={selectedIds.length === 0 || processing.length > 0}
-                className="inline-flex items-center gap-2 px-4 py-2 bg-blue-500 text-white rounded-lg hover:bg-blue-600 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
-              >
-                {processing.length > 0 ? (
-                  <>
-                    <Loader2 className="w-4 h-4 animate-spin" />
-                    Optimizing...
-                  </>
-                ) : (
-                  <>
-                    <Zap className="w-4 h-4" />
-                    Optimize Selected ({selectedIds.length})
-                  </>
-                )}
-              </button>
-            </div>
-          }
-        />
+        <div className="flex items-center justify-between mb-6">
+          <PageHeader
+            title="Optimize Content"
+            lastUpdated={new Date()}
+            badge={{
+              icon: <BoltIcon />,
+              color: 'orange',
+            }}
+          />
+          <div className="flex items-center gap-4">
+            <select
+              value={entryPoint}
+              onChange={(e) => setEntryPoint(e.target.value as EntryPoint)}
+              className="px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-800 text-gray-900 dark:text-white"
+            >
+              <option value="auto">Auto-detect</option>
+              <option value="writer">From Writer</option>
+              <option value="wordpress">From WordPress</option>
+              <option value="external">From External</option>
+              <option value="manual">Manual</option>
+            </select>
+            <button
+              onClick={handleBatchOptimize}
+              disabled={selectedIds.length === 0 || processing.length > 0}
+              className="inline-flex items-center gap-2 px-4 py-2 bg-blue-500 text-white rounded-lg hover:bg-blue-600 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+            >
+              {processing.length > 0 ? (
+                <>
+                  <div className="w-4 h-4 border-2 border-white border-t-transparent rounded-full animate-spin" />
+                  Optimizing...
+                </>
+              ) : (
+                <>
+                  <BoltIcon className="w-4 h-4" />
+                  Optimize Selected ({selectedIds.length})
+                </>
+              )}
+            </button>
+          </div>
+        </div>
+        <p className="text-gray-600 dark:text-gray-400 mb-6">
+          Select content to optimize for SEO, readability, and engagement
+        </p>
 
         {/* Filters */}
         <ContentFilter onFilterChange={setFilters} />
@@ -275,12 +282,12 @@ export default function OptimizerContentSelector() {
                           >
                             {isProcessing ? (
                               <>
-                                <Loader2 className="w-4 h-4 animate-spin" />
+                                <div className="w-4 h-4 border-2 border-white border-t-transparent rounded-full animate-spin" />
                                 Optimizing...
                               </>
                             ) : (
                               <>
-                                <Zap className="w-4 h-4" />
+                                <BoltIcon className="w-4 h-4" />
                                 Optimize
                               </>
                             )}

frontend/src/pages/Optimizer/Dashboard.tsx

@@ -4,7 +4,7 @@ import PageMeta from '../../components/common/PageMeta';
 import ComponentCard from '../../components/common/ComponentCard';
 import EnhancedMetricCard from '../../components/dashboard/EnhancedMetricCard';
 import PageHeader from '../../components/common/PageHeader';
-import { Zap, FileText, TrendingUp, ArrowRight } from 'lucide-react';
+import { BoltIcon, FileTextIcon, ArrowUpIcon, ArrowRightIcon } from '../../icons';
 import { fetchContent } from '../../services/api';
 import { useSiteStore } from '../../store/siteStore';
 import { useSectorStore } from '../../store/sectorStore';
@@ -69,19 +69,26 @@ export default function OptimizerDashboard() {
       <PageMeta title="Optimizer Dashboard" description="Content optimization overview and statistics" />
       
       <div className="space-y-6">
-        <PageHeader
-          title="Optimizer Dashboard"
-          description="Optimize your content for SEO, readability, and engagement"
-          actions={
-            <Link
-              to="/optimizer/content"
-              className="inline-flex items-center gap-2 px-4 py-2 bg-blue-500 text-white rounded-lg hover:bg-blue-600 transition-colors"
-            >
-              <Zap className="w-4 h-4" />
-              Optimize Content
-            </Link>
-          }
-        />
+        <div className="flex items-center justify-between mb-6">
+          <PageHeader
+            title="Optimizer Dashboard"
+            lastUpdated={new Date()}
+            badge={{
+              icon: <BoltIcon />,
+              color: 'orange',
+            }}
+          />
+          <Link
+            to="/optimizer/content"
+            className="inline-flex items-center gap-2 px-4 py-2 bg-blue-500 text-white rounded-lg hover:bg-blue-600 transition-colors"
+          >
+            <BoltIcon />
+            Optimize Content
+          </Link>
+        </div>
+        <p className="text-gray-600 dark:text-gray-400 mb-6">
+          Optimize your content for SEO, readability, and engagement
+        </p>
 
         {loading ? (
           <div className="text-center py-12">
@@ -96,8 +103,8 @@ export default function OptimizerDashboard() {
                 title="Total Optimized"
                 value={stats.totalOptimized.toString()}
                 subtitle={`${stats.contentWithoutScores} not optimized`}
-                icon={<FileText className="w-6 h-6" />}
-                trend={null}
+                icon={<FileTextIcon className="w-6 h-6" />}
+                accentColor="blue"
                 onClick={() => navigate('/optimizer/content')}
               />
 
@@ -105,8 +112,8 @@ export default function OptimizerDashboard() {
                 title="Avg Score Improvement"
                 value={`+${stats.averageScoreImprovement}%`}
                 subtitle="Average improvement per optimization"
-                icon={<TrendingUp className="w-6 h-6" />}
-                trend={null}
+                icon={<ArrowUpIcon className="w-6 h-6" />}
+                accentColor="green"
                 onClick={() => navigate('/optimizer/content')}
               />
 
@@ -114,8 +121,8 @@ export default function OptimizerDashboard() {
                 title="Credits Used"
                 value={stats.totalCreditsUsed.toString()}
                 subtitle="Total credits for optimization"
-                icon={<Zap className="w-6 h-6" />}
-                trend={null}
+                icon={<BoltIcon className="w-6 h-6" />}
+                accentColor="orange"
                 onClick={() => navigate('/optimizer/content')}
               />
             </div>
@@ -128,13 +135,13 @@ export default function OptimizerDashboard() {
                   className="flex items-center justify-between p-4 border border-gray-200 dark:border-gray-700 rounded-lg hover:bg-gray-50 dark:hover:bg-gray-800 transition-colors"
                 >
                   <div className="flex items-center gap-3">
-                    <Zap className="w-5 h-5 text-yellow-500" />
+                    <BoltIcon className="w-5 h-5 text-yellow-500" />
                     <div>
                       <h3 className="font-medium text-gray-900 dark:text-white">Optimize Content</h3>
                       <p className="text-sm text-gray-500 dark:text-gray-400">Select and optimize content items</p>
                     </div>
                   </div>
-                  <ArrowRight className="w-5 h-5 text-gray-400" />
+                  <ArrowRightIcon className="w-5 h-5 text-gray-400" />
                 </Link>
 
                 <Link
@@ -142,13 +149,13 @@ export default function OptimizerDashboard() {
                   className="flex items-center justify-between p-4 border border-gray-200 dark:border-gray-700 rounded-lg hover:bg-gray-50 dark:hover:bg-gray-800 transition-colors"
                 >
                   <div className="flex items-center gap-3">
-                    <FileText className="w-5 h-5 text-purple-500" />
+                    <FileTextIcon className="w-5 h-5 text-purple-500" />
                     <div>
                       <h3 className="font-medium text-gray-900 dark:text-white">View Content</h3>
                       <p className="text-sm text-gray-500 dark:text-gray-400">Browse all content items</p>
                     </div>
                   </div>
-                  <ArrowRight className="w-5 h-5 text-gray-400" />
+                  <ArrowRightIcon className="w-5 h-5 text-gray-400" />
                 </Link>
               </div>
             </ComponentCard>