feat(data): implement backup import merge, QR/OTP account handover, and layout standardization

See merge request !52

- Add Backup Import & Smart Merge wizard UI at /data-management with file preview, password unlock, and category harmonization

- Add Real-time Account Handover UI at /account-handover supporting QR scanning, clay-style PIN display, and mutual OTP confirmation

- Standardize layout container structure and safe-area margins across all 8 Admin Center pages and Integrations page

- Adjust header controls positioning (.finwise-header-controls) to maintain safe buffer from Zalo native capsule buttons

- Add complete bilingual i18n support (vi, en) and register protected routes in application layout

feat(statements): implement statement export with claymorphism UI and home navigation

See merge request !51

feat(notifications): improve Zalo Bot linking flow with 2-step guide and dynamic URL support

See merge request !50

feat(notifications): display recurring transaction due date and navigate to details modal

See merge request !49

feat(auth,admin): enhance auth UI and integrate audit log archive cleanup

See merge request !48

fix(ui): eliminate redundant side padding and standardize page layouts

See merge request !46

fix(recurring): remove VND decimals and display notification status badge

See merge request !45

fix(fe): optimize mobile viewport scaling and ensure persistent auth session

See merge request !44

fix(fe): resolve full-project audit findings, enforce type safety, and harden a11y & resilience

See merge request !43

feat(fe): merge subscriptions into recurring transactions, add reminder...

See merge request !42

feat(fe): merge subscriptions into recurring transactions, add reminder options, and fix budget alert counters

feat(calculator): integrate real-time market exchange rates with live badge and offline fallback

See merge request !41

feat(calculator): integrate currency converter and refine modal positioning & branding

See merge request !40

feat: implement useZaloLogin hook to handle Zalo authentication and user profile integration

See merge request !39

feat(reports,budgets): enhance cash flow chart, category drilldown, and budget auto-renewal UI

See merge request !38

feat(fe): integrate amount calculator modal across all forms and resolve type issues

See merge request !37

feat(notifications): replace 30s short-polling with SSE stream and realtime toast alerts

See merge request !36

feat(branding): integrate official logo and resolve auth/home layout scrolling issues

See merge request !35

feat(transactions): add transaction calculator modal and restore dual account login

See merge request !34

feat(auth): integrate Zalo token-based phone auth and clean up login button UI

See merge request !33

feat(auth): streamline login with Zalo SDK and Claymorphism UI

See merge request !32