feat(perf): add gzip middleware, immutable asset caching, deduped session checks, and vendor chunk splitting

Improve OAuth session resume flow

Link hero badge and simplify pagination label

Constrain tree wallpaper to content area

Revert "Brighten desktop wish sidebar"

Brighten desktop wish sidebar

Remove sidebar panel shadow

Adjust wish panel contrast and pagination

Increase wish panel text contrast

Refine mobile wish cards and panel contrast

Speed up wish card filter transition

Improve tree card readability and fulfilled wish styling

Localize wish detail labels in the tree view

Require login before accessing the tree view

Fix logout redirect race

Fix mobile wish card detail overlay

Async wish responses with frontend polling

```

feat: add loading skeleton shell and card enter animations to TreeView

feat: US-002 - Update frontend login UI for real OTP flow

fix: refresh user info after wish submission to update animal name

feat: show wish detail as hover popover on cards instead of left sidebar

fix: auto-dismiss wish AI response after 8s with manual close button

fix: allow full wish content display in my wishes list

fix: rename wish status label from 有效 to 愿望实现中

fix: resolve TS errors in UndoBanner - unused import and timestamp type

feat: US-005 - Add delete button with 7-day undo banner

feat: US-004 - Add fulfill button to wish detail panel

feat: US-003 - Add extensible status filter to tree view

fix: update wish detail format and time display

refactor: replace single tree with mini-tree wallpaper background and card grid

fix: resolve TS build errors - unused imports and baseUrl deprecation

feat: US-010 - Add mobile responsive layout and final polish

feat: US-008 - Build wish detail panel and wish creation form

feat: US-007 - Build wish tree page with hero, tree visualization, and pagination

feat: US-006 - Build login page with OAuth links and email OTP form

feat: US-005 - Set up Tailwind CSS and design tokens from Vercel/warm gold palette

feat: US-004 - Set up Vue router, Pinia stores, and axios instance

feat: US-001 - Scaffold Vue 3 + Vite frontend project

Replace session-restore PRD with Vue 3 refactor PRD, add 10 new user stories for Gradio-to-Vue SPA migration, reset progress log