chore: remove dead frontend code and one unused service helper

Scan of every module and exported symbol, with each candidate verified by hand
rather than trusted from the scan.

Deleted outright:
  frontend/src/lib/fundamentals.ts  (112 lines, 12 exports) — imported by
    nothing, including FundamentalsPanel, which reads backend values. It mirrors
    scoring_service._compute_fundamental_score, so it is the same *kind* of
    thing as lib/qualification.ts — but nothing consumes it, so it mirrored
    nothing and could drift out of sync unnoticed.
  Skeleton.SkeletonLine, paperTrades.getEquityCurve, regime.regimeColor
  breadth_service.compute_breadth_today — self-described "thin wrapper, for
    future live use"; that future did not arrive.

Kept, but unexported — used inside their own module, so the dead part was the
public surface, not the code: Button.Spinner, exitPlan.SETUP_STOP_ATR_MULTIPLIER,
client.ApiError.

Three things the scan flagged that are NOT dead, recorded so the next sweep does
not re-raise them:
  RegimeChart.tsx — lazy(() => import(...)) in RegimePage, so it looks orphaned
    to any importer-graph scan. Deleting it would break the risk page.
  qualification.ts MIN_TARGET_PROBABILITY / liveRiskReward — that file is a live
    mirror of app/services/qualification.py used in five places, and the
    constant is exported to document the backend value it tracks.
  ssl_bootstrap.ssl_status — called from an inline python snippet inside
    scripts/run_tier1_macbook.sh, invisible to a .py-only search.

No orphaned backend modules across app/.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

app/services/breadth_service.py

@@ -148,11 +148,3 @@ async def compute_breadth_details(
     """Breadth values plus the qualifying-member count for snapshot metadata."""
     closes_by_symbol = await _load_universe_closes(db, symbols)
     return _breadth_with_counts(closes_by_symbol, window, min_tickers)
-
-
-async def compute_breadth_today(db: AsyncSession) -> float | None:
-    """Latest breadth reading (thin wrapper, for future live use)."""
-    series = await compute_breadth_series(db)
-    if not series:
-        return None
-    return series[max(series)]

frontend/src/api/client.ts

@@ -6,7 +6,7 @@ import { useAuthStore } from '../stores/authStore';
  * Typed error class for API errors, providing structured error handling
  * across the application.
  */
-export class ApiError extends Error {
+class ApiError extends Error {
   constructor(message: string) {
     super(message);
     this.name = 'ApiError';

frontend/src/api/paperTrades.ts

@@ -34,10 +34,6 @@ export interface EquityPoint {
   benchmark_pnl: number;
 }
 
-export function getEquityCurve() {
-  return apiClient.get<EquityPoint[]>('paper-trades/equity-curve').then((r) => r.data);
-}
-
 export interface PerfPoint {
   date: string;
   manual_pnl: number;

frontend/src/components/ui/Button.tsx

@@ -16,7 +16,7 @@ const sizeClasses: Record<Size, string> = {
   md: 'px-4 py-2 text-sm',
 };
 
-export function Spinner({ className = 'h-4 w-4' }: { className?: string }) {
+function Spinner({ className = 'h-4 w-4' }: { className?: string }) {
   return (
     <svg className={`animate-spin ${className}`} viewBox="0 0 24 24" fill="none" aria-hidden="true">
       <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />

frontend/src/components/ui/Skeleton.tsx

@@ -1,9 +1,5 @@
 const pulse = 'animate-pulse rounded-lg bg-white/[0.05]';
 
-export function SkeletonLine({ className = '' }: { className?: string }) {
-  return <div className={`${pulse} h-4 w-full ${className}`} />;
-}
-
 export function SkeletonCard({ className = '' }: { className?: string }) {
   return <div className={`${pulse} h-32 w-full ${className}`} />;
 }

frontend/src/lib/exitPlan.ts

@@ -21,7 +21,7 @@ import type { ExitPolicy, TradeSetup } from './types';
  * Guarded by test_prod_strategy_parity.py so a backend change can't silently
  * desync this.
  */
-export const SETUP_STOP_ATR_MULTIPLIER = 1.5;
+const SETUP_STOP_ATR_MULTIPLIER = 1.5;
 
 export interface ExitPlan {
   mode: ExitPolicy['mode'];

frontend/src/lib/fundamentals.ts

@@ -1,112 +0,0 @@
-/**
- * Fundamental dimension readouts for the Fundamentals tab.
- *
- * Scoring mirrors app/services/scoring_service.py _compute_fundamental_score:
- * equal-weighted average of available P/E, revenue growth, and earnings
- * surprise (need ≥2 metrics). Market cap is display-only, not scored.
- */
-
-export interface FundamentalMetrics {
-  pe_ratio: number | null;
-  revenue_growth: number | null;
-  earnings_surprise: number | null;
-  market_cap?: number | null;
-}
-
-export interface StatusRead {
-  text: string;
-  tone: string;
-}
-
-const clamp = (v: number, lo = 0, hi = 100) => Math.max(lo, Math.min(hi, v));
-
-/** P/E sub-score: lower is better. PE 15 → 100, 30 → 50, 45 → 0. */
-export function peSubScore(pe: number): number {
-  return clamp(100 - (pe - 15) * (100 / 30));
-}
-
-/** Revenue growth sub-score: 0% → 50, +20% → 100, −20% → 0. */
-export function revenueGrowthSubScore(growthPct: number): number {
-  return clamp(50 + growthPct * 2.5);
-}
-
-/** Earnings surprise sub-score: 0% → 50, +10% → 100, −10% → 0. */
-export function earningsSurpriseSubScore(surprisePct: number): number {
-  return clamp(50 + surprisePct * 5);
-}
-
-/**
- * Overall fundamental score, or null when fewer than 2 scored metrics.
- * Matches backend MIN_METRICS = 2.
- */
-export function fundamentalScore(m: FundamentalMetrics): number | null {
-  const parts: number[] = [];
-  if (m.pe_ratio != null && m.pe_ratio > 0) parts.push(peSubScore(m.pe_ratio));
-  if (m.revenue_growth != null) parts.push(revenueGrowthSubScore(m.revenue_growth));
-  if (m.earnings_surprise != null) parts.push(earningsSurpriseSubScore(m.earnings_surprise));
-  if (parts.length < 2) return null;
-  return parts.reduce((a, b) => a + b, 0) / parts.length;
-}
-
-export function overallFundamentalStatus(score: number | null): StatusRead {
-  if (score == null) {
-    return { text: 'incomplete data', tone: 'text-amber-300' };
-  }
-  if (score >= 70) return { text: 'strong fundamentals', tone: 'text-emerald-300' };
-  if (score >= 55) return { text: 'healthy', tone: 'text-emerald-300' };
-  if (score >= 45) return { text: 'mixed / average', tone: 'text-gray-400' };
-  if (score >= 30) return { text: 'soft', tone: 'text-amber-300' };
-  return { text: 'weak fundamentals', tone: 'text-red-300' };
-}
-
-export function peStatus(pe: number | null): StatusRead | null {
-  if (pe == null || !(pe > 0)) return null;
-  if (pe <= 15) return { text: 'cheap / attractive', tone: 'text-emerald-300' };
-  if (pe <= 25) return { text: 'fair', tone: 'text-gray-400' };
-  if (pe <= 35) return { text: 'expensive', tone: 'text-amber-300' };
-  return { text: 'rich', tone: 'text-red-300' };
-}
-
-export function revenueGrowthStatus(growthPct: number | null): StatusRead | null {
-  if (growthPct == null) return null;
-  if (growthPct >= 20) return { text: 'strong growth', tone: 'text-emerald-300' };
-  if (growthPct >= 5) return { text: 'solid growth', tone: 'text-emerald-300' };
-  if (growthPct >= -5) return { text: 'flat', tone: 'text-gray-400' };
-  if (growthPct >= -20) return { text: 'contracting', tone: 'text-amber-300' };
-  return { text: 'deep contraction', tone: 'text-red-300' };
-}
-
-export function earningsSurpriseStatus(surprisePct: number | null): StatusRead | null {
-  if (surprisePct == null) return null;
-  if (surprisePct >= 10) return { text: 'beat (large)', tone: 'text-emerald-300' };
-  if (surprisePct >= 2) return { text: 'beat', tone: 'text-emerald-300' };
-  if (surprisePct >= -2) return { text: 'in line', tone: 'text-gray-400' };
-  if (surprisePct >= -10) return { text: 'miss', tone: 'text-amber-300' };
-  return { text: 'miss (large)', tone: 'text-red-300' };
-}
-
-/** Size band only — not good/bad, not part of the score. */
-export function marketCapStatus(marketCap: number | null): StatusRead | null {
-  if (marketCap == null || !(marketCap > 0)) return null;
-  if (marketCap >= 200e9) return { text: 'mega cap', tone: 'text-gray-400' };
-  if (marketCap >= 10e9) return { text: 'large cap', tone: 'text-gray-400' };
-  if (marketCap >= 2e9) return { text: 'mid cap', tone: 'text-gray-400' };
-  if (marketCap >= 300e6) return { text: 'small cap', tone: 'text-gray-400' };
-  return { text: 'micro cap', tone: 'text-gray-400' };
-}
-
-export function metricStatus(
-  key: 'pe_ratio' | 'revenue_growth' | 'earnings_surprise' | 'market_cap',
-  value: number | null,
-): StatusRead | null {
-  switch (key) {
-    case 'pe_ratio':
-      return peStatus(value);
-    case 'revenue_growth':
-      return revenueGrowthStatus(value);
-    case 'earnings_surprise':
-      return earningsSurpriseStatus(value);
-    case 'market_cap':
-      return marketCapStatus(value);
-  }
-}

frontend/src/lib/regime.ts

@@ -1,18 +1,5 @@
 import type { MarketRegime } from './types';
 
-export function regimeColor(label: MarketRegime['label']): string {
-  switch (label) {
-    case 'bullish':
-      return 'text-emerald-400';
-    case 'bearish':
-      return 'text-red-400';
-    case 'neutral':
-      return 'text-amber-400';
-    default:
-      return 'text-gray-400';
-  }
-}
-
 export function regimeDot(label: MarketRegime['label']): string {
   switch (label) {
     case 'bullish':