fix: Remove conditional rendering to always show dashboard components

Components were conditionally rendered based on data availability, causing
a blank page during loading or on API errors. Each component already has
internal loading state handling with skeleton loaders.

Changed:
- HealthStatusCard: Always render, let component show skeleton
- ActionQueueCard: Always render, let component show skeleton
- OrchestrationSummaryCard: Always render, let component show skeleton
- ProductionTimelineCard: Always render, let component show skeleton
- InsightsGrid: Always render, let component show skeleton

Benefits:
- Users see loading skeletons instead of blank page
- Better UX during initial load and API failures
- Components handle their own loading/error states

frontend/src/pages/app/DashboardPage.tsx

@@ -153,10 +153,9 @@ export function NewDashboardPage() {
         {/* Main Dashboard Layout */}
         <div className="space-y-6">
           {/* SECTION 1: Bakery Health Status */}
-          {healthStatus && <HealthStatusCard healthStatus={healthStatus} loading={healthLoading} />}
+          <HealthStatusCard healthStatus={healthStatus} loading={healthLoading} />
 
           {/* SECTION 2: What Needs Your Attention (Action Queue) */}
-          {actionQueue && (
           <ActionQueueCard
             actionQueue={actionQueue}
             loading={actionQueueLoading}
@@ -164,33 +163,26 @@ export function NewDashboardPage() {
             onViewDetails={handleViewDetails}
             onModify={handleModify}
           />
-          )}
 
           {/* SECTION 3: What the System Did for You (Orchestration Summary) */}
-          {orchestrationSummary && (
           <OrchestrationSummaryCard
             summary={orchestrationSummary}
             loading={orchestrationLoading}
           />
-          )}
 
           {/* SECTION 4: Today's Production Timeline */}
-          {productionTimeline && (
           <ProductionTimelineCard
             timeline={productionTimeline}
             loading={timelineLoading}
             onStart={handleStartBatch}
             onPause={handlePauseBatch}
           />
-          )}
 
           {/* SECTION 5: Quick Insights Grid */}
-          {insights && (
           <div>
             <h2 className="text-2xl font-bold mb-4" style={{ color: 'var(--text-primary)' }}>Key Metrics</h2>
             <InsightsGrid insights={insights} loading={insightsLoading} />
           </div>
-          )}
 
           {/* SECTION 6: Quick Action Links */}
           <div className="rounded-xl shadow-md p-6" style={{ backgroundColor: 'var(--bg-primary)' }}>