feat(frontend): add shared layer — types, API client, router, app layout

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/App.vue

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+<template>
+  <div class="app-layout">
+    <aside class="sidebar">
+      <h2>Arch Design Dashboard</h2>
+      <ProjectSidebar />
+    </aside>
+    <main class="content">
+      <router-view />
+    </main>
+  </div>
+</template>
+
+<script setup lang="ts">
+import ProjectSidebar from '@/modules/project/components/ProjectSidebar.vue'
+</script>

frontend/src/env.d.ts

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+declare module '*.vue' {
+  import type { DefineComponent } from 'vue'
+  const component: DefineComponent<{}, {}, any>
+  export default component
+}

frontend/src/main.ts

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+import { createApp } from 'vue'
+import { createPinia } from 'pinia'
+import App from './App.vue'
+import router from './router'
+import './style.css'
+
+const app = createApp(App)
+app.use(createPinia())
+app.use(router)
+app.mount('#app')

frontend/src/router/index.ts

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+import { createRouter, createWebHistory } from 'vue-router'
+
+const router = createRouter({
+  history: createWebHistory(),
+  routes: [
+    { path: '/', component: () => import('@/modules/project/components/ProjectList.vue') },
+    { path: '/projects/:id', component: () => import('@/modules/graph/components/GraphPanorama.vue') },
+    { path: '/projects/:id/editor', component: () => import('@/modules/editor/components/EditorPage.vue') },
+  ],
+})
+
+export default router

frontend/src/shared/api.ts

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+import axios from 'axios'
+const api = axios.create({ baseURL: '/api' })
+export default api

frontend/src/shared/types/api.ts

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+export interface Project {
+  id: string
+  name: string
+  design_dir: string
+  code_dir: string | null
+  created_at: string
+}
+
+export interface FileStatusEntry {
+  path: string
+  status: string
+  content_lines: number
+}
+
+export interface ScanSummary {
+  total_files: number
+  ok: number
+  sparse: number
+  missing: number
+  placeholder_heavy: number
+  template_residue: number
+}
+
+export interface ScanResult {
+  project_id: string
+  scanned_at: string
+  file_statuses: FileStatusEntry[]
+  summary: ScanSummary
+}
+
+export interface GraphNode {
+  id: string
+  type: string
+  label: string
+  status: string
+  group_id: string
+}
+
+export interface GraphEdge {
+  source: string
+  target: string
+  relation: string
+}
+
+export interface GraphGroup {
+  id: string
+  label: string
+  layer: string
+}
+
+export interface GraphView {
+  nodes: GraphNode[]
+  edges: GraphEdge[]
+  groups: GraphGroup[]
+}
+
+export interface Capability {
+  capability_id: string
+  name: string
+  description: string
+  priority: string
+  phase: string
+  related_value_flows: string[]
+}
+
+export interface Module {
+  module_id: string
+  name: string
+  layer: string
+  description: string
+  phase: string
+  depends_on: string[]
+  capabilities: string[]
+}
+
+export interface Entity {
+  entity_id: string
+  name: string
+  domain: string
+  owner_module: string
+  description: string
+  phase: string
+  source_file: string
+}
+
+export interface Integration {
+  integration_id: string
+  source: string
+  target: string
+  target_type: string
+  direction: string
+  protocol: string
+  trigger: string
+  phase: string
+  description: string
+}
+
+export interface ValueFlow {
+  value_flow_id: string
+  name: string
+  trigger: string
+  actor: string
+  steps: string
+  outcome: string
+  phase: string
+  related_capabilities: string[]
+}
+
+export interface UserJourney {
+  journey_id: string
+  name: string
+  actor: string
+  precondition: string
+  steps: string
+  postcondition: string
+  phase: string
+  related_value_flows: string[]
+}
+
+export interface DataFlow {
+  data_flow_id: string
+  source: string
+  target: string
+  data_content: string
+  trigger: string
+  protocol: string
+  phase: string
+  description: string
+}
+
+export interface ExternalSystem {
+  system_id: string
+  name: string
+  type: string
+  protocol: string
+  direction: string
+  phase: string
+  description: string
+}
+
+export interface TraceabilityLink {
+  trace_id: string
+  capability_id: string
+  module_id: string
+  entity_ids: string[]
+  value_flow_ids: string[]
+  notes: string
+}
+
+export interface RuntimeComponent {
+  component_id: string
+  name: string
+  type: string
+  technology: string
+  port: string
+}
+
+export interface EditableFile {
+  path: string
+  format: string
+  content: string
+  last_modified: string
+}
+
+export interface AffectedFile {
+  path: string
+  reason: string
+}
+
+export interface ImpactResult {
+  source_file: string
+  affected_files: AffectedFile[]
+}
+
+export interface ImplProgress {
+  module_id: string
+  percentage: number
+  source: string
+  evaluated_at: string
+}
+
+export interface CapabilityDetail {
+  capability: Capability
+  modules: Module[]
+  value_flows: ValueFlow[]
+}
+
+export interface ModuleDetail {
+  module: Module
+  entities: Entity[]
+  integrations: Integration[]
+  codebase_alignment: Record<string, unknown> | null
+}
+
+export interface EntityDetail {
+  entity: Entity
+  data_flows: DataFlow[]
+}

frontend/src/style.css

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+:root {
+  --sidebar-width: 260px;
+  --color-primary: #1976D2;
+  --color-bg: #f5f5f5;
+  --color-sidebar: #fff;
+  --color-border: #e0e0e0;
+  --color-ok: #4CAF50;
+  --color-sparse: #FFC107;
+  --color-missing: #F44336;
+  --color-template-residue: #FF9800;
+  --color-placeholder-heavy: #9C27B0;
+  --color-unknown: #9E9E9E;
+}
+
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+  background: var(--color-bg);
+  color: #333;
+}
+
+.app-layout {
+  display: grid;
+  grid-template-columns: var(--sidebar-width) 1fr;
+  min-height: 100vh;
+}
+
+.sidebar {
+  background: var(--color-sidebar);
+  border-right: 1px solid var(--color-border);
+  padding: 16px;
+  overflow-y: auto;
+}
+
+.sidebar h2 {
+  font-size: 16px;
+  margin-bottom: 16px;
+  color: var(--color-primary);
+}
+
+.content {
+  padding: 24px;
+  overflow-y: auto;
+}
+
+button {
+  cursor: pointer;
+  border: none;
+  border-radius: 4px;
+  padding: 8px 16px;
+  font-size: 14px;
+}
+
+button.primary {
+  background: var(--color-primary);
+  color: white;
+}
+
+button.danger {
+  background: var(--color-missing);
+  color: white;
+}
+
+input, textarea {
+  border: 1px solid var(--color-border);
+  border-radius: 4px;
+  padding: 8px;
+  font-size: 14px;
+  width: 100%;
+}
+
+.card {
+  background: white;
+  border: 1px solid var(--color-border);
+  border-radius: 8px;
+  padding: 16px;
+  margin-bottom: 12px;
+}

frontend/src/vite-env.d.ts

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+/// <reference types="vite/client" />