refactor(mobile): extract types, static data, utils, styles from App.vue

Pure moves only — zero behavior change, template untouched:
- types.ts (447), utils.ts (51), data/{auth,navigation,practice,mentor,
  home,supervisor,icons}.ts, styles/app.css (4690, still global non-scoped
  via <style src>)
- App.vue 9006 → 3559 lines; 98 moved declarations verbatim except
  export/import syntax
- Built CSS hash identical to pre-refactor (byte-equal styles); reactive
  state, computed, watchers, lifecycle and templates all stay in App.vue
- Component-level split deferred to phase two after 2026-07-10 Alpha

mobile/src/data/navigation.ts

@@ -0,0 +1,49 @@
+import type { RoleKey, SupervisorPanelKey, UserPanelKey } from '../types';
+
+export const aliases: Record<string, RoleKey> = {
+  h5: 'user',
+  user: 'user',
+  employee: 'user',
+  candidate: 'candidate',
+  supervisor: 'supervisor',
+  admin: 'supervisor',
+  manager: 'supervisor'
+};
+
+export const rolePaths: Record<RoleKey, string> = {
+  user: '/h5/user',
+  candidate: '/h5/candidate',
+  supervisor: '/h5/supervisor'
+};
+
+export const userPanelSegments: Record<Exclude<UserPanelKey, ''>, string> = {
+  tasks: 'training',
+  practice: 'practice',
+  sop: 'knowledge',
+  cases: 'cases',
+  submit: 'submit',
+  profile: 'profile',
+  history: 'history',
+  recommend: 'recommend'
+};
+
+export const candidatePanelSegments: Record<Exclude<UserPanelKey, ''>, string> = {
+  tasks: 'interview',
+  practice: 'interview',
+  sop: 'sop',
+  cases: 'cases',
+  submit: 'materials',
+  profile: 'profile',
+  history: 'history',
+  recommend: 'recommend'
+};
+
+export const supervisorPanelSegments: Record<Exclude<SupervisorPanelKey, ''>, string> = {
+  team: 'team',
+  reviews: 'reviews',
+  assign: 'assign',
+  weakness: 'weakness',
+  case: 'cases',
+  sop: 'sop',
+  profile: 'profile'
+};