feat: Models List page (T02 master-detail template) — second KBX v60 page

Implement ModelList.vue using KBX Foundation v60 master-detail pattern:
- T02 Master-Detail template for model browsing
- KbxScreenFrame wrapper with breadcrumb/title
- Left side: Scrollable model list with metrics (PBO, DSR, Return)
- Right side: Detail panel with performance metrics and configuration
- KbxTemplateStateBoundary for async state management
- Status indicators (Active/Inactive) with phase color coding
- Metric cards (PBO, DSR, OOS) with validation hints
- Configuration display (lookback, rebalance, risk limits)
- Action buttons (View Results, Start Shadow Run, Edit Config)
- Dark mode and responsive layout

New files:
- features/models/pages/ModelList.vue (T02 master-detail page)

Updated:
- features/models/registry.ts (import ScreenDefinition from @kbx/contracts)

Uses existing useModelsList, useModelDetail composables with TanStack Query.
Demo data: 3 models (Validate, Review, Mature phases).
Fully integrated with KBX v60 component library.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

frontend/src/features/models/pages/ModelList.vue

@@ -0,0 +1,492 @@
+<script setup lang="ts">
+/**
+ * Models List (T02 Master-Detail Template)
+ * Display model list with detail panel
+ */
+
+import { reactive, computed, onMounted } from 'vue'
+import {
+  KbxScreenFrame,
+  KbxMasterTemplate,
+  KbxTemplateStateBoundary,
+  KbxButton,
+  KbxStatusTag,
+  KbxInput,
+  KbxSelect,
+  KbxDataGrid,
+  KbxSectionHeader,
+  KbxFormSection,
+  KbxFormGrid,
+} from '@kbx/ui'
+import { useModelsList, useModelDetail } from '../composables/useModels'
+
+const listQuery = useModelsList()
+const selectedModelId = computed(() => listQuery.data.value?.items[0]?.modelId || null)
+const detailQuery = useModelDetail(selectedModelId.value)
+
+const filterModel = reactive({
+  search: '',
+  phase: '',
+  active: '',
+})
+
+const breadcrumb = [
+  { label: 'Model Operations', href: '/model-ops' },
+  { label: 'Models' },
+]
+
+onMounted(() => {
+  listQuery.refetch()
+})
+
+const getPhaseColor = (phase: string) => {
+  const colors: Record<string, string> = {
+    'Freeze': 'default',
+    'Mature': 'info',
+    'Score': 'info',
+    'Diagnose': 'warning',
+    'Hypothesis': 'warning',
+    'Challenger': 'warning',
+    'Validate': 'success',
+    'Review': 'success',
+    'Manual Activation': 'danger',
+  }
+  return colors[phase] || 'default'
+}
+
+const formatDate = (dateString: string) => {
+  return new Date(dateString).toLocaleDateString('ko-KR', {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+  })
+}
+
+const formatPercentage = (value: number) => {
+  return (value || 0).toFixed(2) + '%'
+}
+
+const formattedModels = computed(() => {
+  return listQuery.data.value?.items?.map(m => ({
+    ...m,
+    pboDisplay: formatPercentage(m.pbo),
+    dsrDisplay: formatPercentage(m.dsr),
+    returnDisplay: formatPercentage(m.returnMtd),
+    createdAtDisplay: formatDate(m.createdAt),
+  })) || []
+})
+</script>
+
+<template>
+  <KbxScreenFrame
+    title="Models"
+    :breadcrumb="breadcrumb"
+    class="model-list"
+  >
+    <!-- Filter Bar -->
+    <div class="model-list__filters">
+      <KbxInput
+        v-model="filterModel.search"
+        label="Search"
+        placeholder="Model name..."
+      />
+      <KbxSelect
+        v-model="filterModel.phase"
+        label="Phase"
+        :options="[
+          { value: '', label: 'All Phases' },
+          { value: 'Freeze', label: 'Freeze' },
+          { value: 'Mature', label: 'Mature' },
+          { value: 'Validate', label: 'Validate' },
+          { value: 'Review', label: 'Review' },
+        ]"
+      />
+      <KbxSelect
+        v-model="filterModel.active"
+        label="Status"
+        :options="[
+          { value: '', label: 'All' },
+          { value: 'true', label: 'Active' },
+          { value: 'false', label: 'Inactive' },
+        ]"
+      />
+      <KbxButton variant="primary" size="md" label="New Model" />
+    </div>
+
+    <!-- Master-Detail Layout -->
+    <KbxTemplateStateBoundary
+      :state="listQuery.isPending ? 'loading' : listQuery.isError ? 'error' : 'idle'"
+      :error="listQuery.error?.message || null"
+      @retry="listQuery.refetch"
+    >
+      <KbxMasterTemplate v-if="formattedModels.length">
+        <!-- Master: List Side -->
+        <template #list>
+          <div class="model-list__items">
+            <div
+              v-for="model in formattedModels"
+              :key="model.modelId"
+              class="model-list__item"
+              :class="{ 'is-active': model.active, 'is-selected': selectedModelId === model.modelId }"
+              @click="selectedModelId = model.modelId"
+            >
+              <div class="item-header">
+                <strong>{{ model.name }}</strong>
+                <KbxStatusTag :tone="getPhaseColor(model.phase)" :label="model.phase" />
+              </div>
+              <div class="item-metrics">
+                <div class="metric">
+                  <span class="label">PBO</span>
+                  <span class="value">{{ model.pboDisplay }}</span>
+                </div>
+                <div class="metric">
+                  <span class="label">DSR</span>
+                  <span class="value">{{ model.dsrDisplay }}</span>
+                </div>
+                <div class="metric">
+                  <span class="label">Return</span>
+                  <span class="value">{{ model.returnDisplay }}</span>
+                </div>
+              </div>
+              <div class="item-footer">
+                <span v-if="model.active" class="badge-active">🟢 Active</span>
+                <span v-else class="badge-inactive">⚪ Inactive</span>
+                <span class="date">{{ model.createdAtDisplay }}</span>
+              </div>
+            </div>
+          </div>
+        </template>
+
+        <!-- Detail: Right Side -->
+        <template #detail>
+          <KbxTemplateStateBoundary
+            v-if="selectedModelId"
+            :state="detailQuery.isPending ? 'loading' : detailQuery.isError ? 'error' : 'idle'"
+          >
+            <div class="model-detail">
+              <KbxSectionHeader
+                :title="detailQuery.data.value?.name || 'Model Details'"
+                description="Full model configuration and validation metrics"
+              />
+
+              <!-- Metrics Grid -->
+              <KbxFormSection title="Performance Metrics">
+                <KbxFormGrid :columns="3">
+                  <div class="metric-card">
+                    <div class="metric-label">Probability of Backtest Overfit</div>
+                    <div class="metric-value">{{ formatPercentage(detailQuery.data.value?.pbo) }}</div>
+                    <div class="metric-hint">Lower is better (≤20%)</div>
+                  </div>
+                  <div class="metric-card">
+                    <div class="metric-label">Daily Sharpe Ratio</div>
+                    <div class="metric-value">{{ formatPercentage(detailQuery.data.value?.dsr) }}</div>
+                    <div class="metric-hint">Higher is better (≥95%)</div>
+                  </div>
+                  <div class="metric-card">
+                    <div class="metric-label">Out-of-Sample Error</div>
+                    <div class="metric-value">{{ formatPercentage(detailQuery.data.value?.oos) }}</div>
+                    <div class="metric-hint">Lower is better (≤2.5%)</div>
+                  </div>
+                </KbxFormGrid>
+              </KbxFormSection>
+
+              <!-- Configuration -->
+              <KbxFormSection title="Configuration">
+                <KbxFormGrid :columns="2">
+                  <div class="config-item">
+                    <div class="config-label">Lookback Period</div>
+                    <div class="config-value">{{ detailQuery.data.value?.configuration?.lookbackPeriod }} days</div>
+                  </div>
+                  <div class="config-item">
+                    <div class="config-label">Rebalance Frequency</div>
+                    <div class="config-value">{{ detailQuery.data.value?.configuration?.rebalanceFrequency }}</div>
+                  </div>
+                  <div class="config-item">
+                    <div class="config-label">Risk Limit</div>
+                    <div class="config-value">{{ detailQuery.data.value?.configuration?.riskLimit }}%</div>
+                  </div>
+                  <div class="config-item">
+                    <div class="config-label">Max Positions</div>
+                    <div class="config-value">{{ detailQuery.data.value?.configuration?.maxPositions }}</div>
+                  </div>
+                </KbxFormGrid>
+              </KbxFormSection>
+
+              <!-- Actions -->
+              <div class="model-detail__actions">
+                <KbxButton variant="primary" size="md" label="View Full Results" />
+                <KbxButton variant="secondary" size="md" label="Start Shadow Run" />
+                <KbxButton variant="secondary" size="md" label="Edit Config" />
+              </div>
+            </div>
+          </KbxTemplateStateBoundary>
+
+          <!-- Empty State -->
+          <div v-else class="model-detail__empty">
+            <div class="empty-icon">📋</div>
+            <p>Select a model to view details</p>
+          </div>
+        </template>
+      </KbxMasterTemplate>
+
+      <!-- Empty List -->
+      <template #empty>
+        <div class="model-list__empty">
+          <div class="empty-icon">🎯</div>
+          <h3>No models yet</h3>
+          <p>Create your first trading model to get started</p>
+          <KbxButton variant="primary" size="md" label="Create New Model" />
+        </div>
+      </template>
+    </KbxTemplateStateBoundary>
+  </KbxScreenFrame>
+</template>
+
+<style scoped>
+.model-list {
+  display: flex;
+  flex-direction: column;
+  gap: 20px;
+}
+
+.model-list__filters {
+  display: grid;
+  grid-template-columns: 1fr 150px 150px 140px;
+  gap: 16px;
+  padding: 16px;
+  background: var(--kbx-color-surface-secondary);
+  border-radius: 4px;
+}
+
+.model-list__items {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  max-height: 600px;
+  overflow-y: auto;
+  border: 1px solid var(--kbx-color-border);
+  border-radius: 4px;
+  padding: 8px;
+}
+
+.model-list__item {
+  padding: 12px;
+  background: var(--kbx-color-surface);
+  border: 1px solid var(--kbx-color-border);
+  border-radius: 4px;
+  cursor: pointer;
+  transition: all 0.2s ease;
+}
+
+.model-list__item:hover {
+  background: var(--kbx-color-surface-hover);
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+}
+
+.model-list__item.is-selected {
+  border-color: #3b82f6;
+  background: rgba(59, 130, 246, 0.05);
+  border-left: 4px solid #3b82f6;
+}
+
+.model-list__item.is-active {
+  border-left: 4px solid #10b981;
+}
+
+.item-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 8px;
+  font-size: 14px;
+}
+
+.item-metrics {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 8px;
+  margin-bottom: 8px;
+  font-size: 12px;
+}
+
+.metric {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.metric .label {
+  color: var(--kbx-color-text-muted);
+  font-weight: 500;
+}
+
+.metric .value {
+  color: var(--kbx-color-text);
+  font-weight: 600;
+}
+
+.item-footer {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  font-size: 11px;
+  color: var(--kbx-color-text-muted);
+}
+
+.badge-active {
+  color: #10b981;
+  font-weight: 600;
+}
+
+.badge-inactive {
+  color: #9ca3af;
+}
+
+.model-detail {
+  padding: 16px;
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+}
+
+.metric-card {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+  padding: 12px;
+  background: var(--kbx-color-surface-secondary);
+  border-radius: 4px;
+  text-align: center;
+}
+
+.metric-label {
+  font-size: 12px;
+  color: var(--kbx-color-text-muted);
+  font-weight: 500;
+}
+
+.metric-value {
+  font-size: 18px;
+  font-weight: 700;
+  color: var(--kbx-color-text);
+}
+
+.metric-hint {
+  font-size: 11px;
+  color: var(--kbx-color-text-muted);
+}
+
+.config-item {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.config-label {
+  font-size: 12px;
+  color: var(--kbx-color-text-muted);
+  font-weight: 500;
+}
+
+.config-value {
+  font-size: 14px;
+  color: var(--kbx-color-text);
+  font-weight: 500;
+}
+
+.model-detail__actions {
+  display: flex;
+  gap: 8px;
+  padding-top: 16px;
+  border-top: 1px solid var(--kbx-color-border);
+}
+
+.model-detail__empty {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  padding: 60px 20px;
+  text-align: center;
+}
+
+.empty-icon {
+  font-size: 48px;
+  margin-bottom: 16px;
+}
+
+.model-detail__empty h3 {
+  margin: 0 0 8px 0;
+  font-size: 14px;
+  font-weight: 600;
+}
+
+.model-detail__empty p {
+  margin: 0;
+  font-size: 12px;
+  color: var(--kbx-color-text-muted);
+}
+
+.model-list__empty {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  padding: 80px 20px;
+  text-align: center;
+}
+
+.model-list__empty .empty-icon {
+  font-size: 64px;
+  margin-bottom: 20px;
+}
+
+.model-list__empty h3 {
+  margin: 0 0 8px 0;
+  font-size: 16px;
+  font-weight: 600;
+}
+
+.model-list__empty p {
+  margin: 0 0 24px 0;
+  font-size: 14px;
+  color: var(--kbx-color-text-muted);
+}
+
+@media (max-width: 768px) {
+  .model-list__filters {
+    grid-template-columns: 1fr;
+  }
+
+  .metric-card {
+    padding: 16px;
+  }
+
+  .model-list__items {
+    max-height: 400px;
+  }
+}
+
+@media (prefers-color-scheme: dark) {
+  .model-list__filters {
+    background: #1f2937;
+  }
+
+  .model-list__item {
+    background: #111827;
+    border-color: #374151;
+  }
+
+  .model-list__item:hover {
+    background: #1f2937;
+  }
+
+  .model-list__item.is-selected {
+    background: rgba(59, 130, 246, 0.1);
+  }
+
+  .metric-card {
+    background: #1f2937;
+  }
+}
+</style>

frontend/src/features/models/registry.ts

@@ -3,9 +3,9 @@
  * Define all screens in the models feature module
  */
 
-import type { KbxScreenDefinition } from '@shared/contracts/kbx-types'
+import type { ScreenDefinition } from '@kbx/contracts'
 
-export const modelsListScreen: KbxScreenDefinition = {
+export const modelsListScreen: ScreenDefinition = {
   screenId: 'model-ops.models.list',
   title: 'Model Management',
   module: 'ModelOps',
@@ -55,7 +55,7 @@ export const modelsListScreen: KbxScreenDefinition = {
   telemetry: { enabled: true },
 }
 
-export const modelsDetailScreen: KbxScreenDefinition = {
+export const modelsDetailScreen: ScreenDefinition = {
   screenId: 'model-ops.models.detail',
   title: 'Model Details',
   module: 'ModelOps',
@@ -93,4 +93,4 @@ export const modelsDetailScreen: KbxScreenDefinition = {
 /**
  * All screens in models module
  */
-export const modelScreens: KbxScreenDefinition[] = [modelsListScreen, modelsDetailScreen]
+export const modelScreens: ScreenDefinition[] = [modelsListScreen, modelsDetailScreen]

frontend/src/features/models/types/index.ts

@@ -0,0 +1,24 @@
+/**
+ * Models Feature Types
+ */
+
+export interface Model {
+  modelId: string
+  name: string
+  version: string
+  description: string
+  status: 'draft' | 'training' | 'mature' | 'active' | 'retired'
+  createdAt: string
+  updatedAt: string
+  createdBy: string
+  accuracy: number
+  sharpeRatio: number
+  maxDrawdown: number
+  trades: number
+}
+
+export interface ModelFilter {
+  search?: string
+  status?: string
+  minAccuracy?: number
+}