feat(REQ-001): scaffold Ionic 8 + Angular 20 + Capacitor project

- Initialize Ionic tabs project with Angular 20 and Capacitor 8
- Configure 4-tab layout: Journal, Stats, Plans, Profile
- Create feature modules with lazy loading (home, stats, search, profile)
- Add core services stubs (meal, calorie-estimator, auth, storage)
- Add modal placeholders for manual and LLM input
- Apply Precision Vitality design system (colors, fonts, tonal layering)
- Configure Lexend + Plus Jakarta Sans typography
- Implement no-border design rule with tonal surface hierarchy
- Add food dictionary for AI calorie estimation
- Configure environment files with Firebase placeholders
- Set Capacitor appId: run.i_a.calorietracker
- Verify: ionic build and cap sync pass successfully

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

capacitor.config.ts

@@ -0,0 +1,12 @@
+import type { CapacitorConfig } from '@capacitor/cli';
+
+const config: CapacitorConfig = {
+  appId: 'run.i_a.calorietracker',
+  appName: 'Precision Vitality',
+  webDir: 'www',
+  server: {
+    androidScheme: 'https'
+  }
+};
+
+export default config;