feat: add useAuth hook and login page

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/client/routeTree.gen.ts

@@ -10,6 +10,7 @@
 
 import { Route as rootRouteImport } from './routes/__root'
 import { Route as SettingsRouteImport } from './routes/settings'
+import { Route as LoginRouteImport } from './routes/login'
 import { Route as IndexRouteImport } from './routes/index'
 import { Route as CollectionIndexRouteImport } from './routes/collection/index'
 import { Route as ThreadsThreadIdRouteImport } from './routes/threads/$threadId'
@@ -20,6 +21,11 @@ const SettingsRoute = SettingsRouteImport.update({
   path: '/settings',
   getParentRoute: () => rootRouteImport,
 } as any)
+const LoginRoute = LoginRouteImport.update({
+  id: '/login',
+  path: '/login',
+  getParentRoute: () => rootRouteImport,
+} as any)
 const IndexRoute = IndexRouteImport.update({
   id: '/',
   path: '/',
@@ -43,6 +49,7 @@ const SetupsSetupIdRoute = SetupsSetupIdRouteImport.update({
 
 export interface FileRoutesByFullPath {
   '/': typeof IndexRoute
+  '/login': typeof LoginRoute
   '/settings': typeof SettingsRoute
   '/setups/$setupId': typeof SetupsSetupIdRoute
   '/threads/$threadId': typeof ThreadsThreadIdRoute
@@ -50,6 +57,7 @@ export interface FileRoutesByFullPath {
 }
 export interface FileRoutesByTo {
   '/': typeof IndexRoute
+  '/login': typeof LoginRoute
   '/settings': typeof SettingsRoute
   '/setups/$setupId': typeof SetupsSetupIdRoute
   '/threads/$threadId': typeof ThreadsThreadIdRoute
@@ -58,6 +66,7 @@ export interface FileRoutesByTo {
 export interface FileRoutesById {
   __root__: typeof rootRouteImport
   '/': typeof IndexRoute
+  '/login': typeof LoginRoute
   '/settings': typeof SettingsRoute
   '/setups/$setupId': typeof SetupsSetupIdRoute
   '/threads/$threadId': typeof ThreadsThreadIdRoute
@@ -67,6 +76,7 @@ export interface FileRouteTypes {
   fileRoutesByFullPath: FileRoutesByFullPath
   fullPaths:
     | '/'
+    | '/login'
     | '/settings'
     | '/setups/$setupId'
     | '/threads/$threadId'
@@ -74,6 +84,7 @@ export interface FileRouteTypes {
   fileRoutesByTo: FileRoutesByTo
   to:
     | '/'
+    | '/login'
     | '/settings'
     | '/setups/$setupId'
     | '/threads/$threadId'
@@ -81,6 +92,7 @@ export interface FileRouteTypes {
   id:
     | '__root__'
     | '/'
+    | '/login'
     | '/settings'
     | '/setups/$setupId'
     | '/threads/$threadId'
@@ -89,6 +101,7 @@ export interface FileRouteTypes {
 }
 export interface RootRouteChildren {
   IndexRoute: typeof IndexRoute
+  LoginRoute: typeof LoginRoute
   SettingsRoute: typeof SettingsRoute
   SetupsSetupIdRoute: typeof SetupsSetupIdRoute
   ThreadsThreadIdRoute: typeof ThreadsThreadIdRoute
@@ -104,6 +117,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof SettingsRouteImport
       parentRoute: typeof rootRouteImport
     }
+    '/login': {
+      id: '/login'
+      path: '/login'
+      fullPath: '/login'
+      preLoaderRoute: typeof LoginRouteImport
+      parentRoute: typeof rootRouteImport
+    }
     '/': {
       id: '/'
       path: '/'
@@ -137,6 +157,7 @@ declare module '@tanstack/react-router' {
 
 const rootRouteChildren: RootRouteChildren = {
   IndexRoute: IndexRoute,
+  LoginRoute: LoginRoute,
   SettingsRoute: SettingsRoute,
   SetupsSetupIdRoute: SetupsSetupIdRoute,
   ThreadsThreadIdRoute: ThreadsThreadIdRoute,