feat(ui): implement disagreement detection, prediction summary, loading states, and update documentation

- Add disagreement detection logic comparing human annotations vs predictions
- Display prediction summary in PredictionPanel (agreements/disagreements)
- Wire up 'Show only disagreements' filter toggle
- Add loading overlay during prediction fetching
- Update docker-compose.yml with healthchecks for all services
- Update DEPLOYMENT.md with comprehensive ML service setup instructions
- Update README.md with ML pipeline overview and architecture diagrams
- Update CLAUDE_DESCRIPTION.md with v3.0.0 ML integration details

Remaining tasks (11.2, 11.4, 11.5) deferred - core functionality complete

src/components/CandleChart.tsx

@@ -5,7 +5,7 @@ import { createChart, IChartApi, ISeriesApi, CandlestickData, HistogramData, Tim
 import { useTheme } from 'next-themes';
 import SvgOverlay from './SvgOverlay';
 import SpanAnnotationManager from './SpanAnnotationManager';
-import type { PerCandlePrediction, PredictionSpan, ModelInfoResponse } from '@/types/predictions';
+import type { PerCandlePrediction, PredictionSpan, ModelInfoResponse, PredictionSummary } from '@/types/predictions';
 
 interface Candle {
   time: number;
@@ -82,6 +82,8 @@ interface CandleChartProps {
   confidenceThreshold?: number;
   selectedLabels?: Set<string>;
   modelInfo?: ModelInfoResponse | null;
+  predictionSummary?: PredictionSummary | null;
+  showOnlyDisagreements?: boolean;
 }
 
 export interface CandleChartHandle {
@@ -108,6 +110,8 @@ const CandleChart = forwardRef<CandleChartHandle, CandleChartProps>(
     confidenceThreshold = 0.5,
     selectedLabels = new Set<string>(),
     modelInfo = null,
+    predictionSummary = null,
+    showOnlyDisagreements = false,
   }, ref) => {
     const chartContainerRef = useRef<HTMLDivElement>(null);
     const chartRef = useRef<IChartApi | null>(null);