fix: collection name mismatch, login/register navigation, and connection config

- Fix teamSessions → team_sessions to match PocketBase collection name
- Replace <a @click> with <router-link> in Login and Register views
- Update PocketBase default URL and vite proxy target
- Comment out docker-compose user directive for permission fix

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

frontend/src/views/Login.vue

@@ -1,13 +1,12 @@
 <!-- src/views/Login.vue -->
 <script setup lang="ts">
 import { ref } from 'vue'
-import { useRouter, useRoute } from 'vue-router'
+import { useRouter } from 'vue-router'
 import { useUserStore } from '@/stores/user'
 import { ElMessage } from 'element-plus'
 import PasswordInput from '@/components/common/PasswordInput.vue'
 
 const router = useRouter()
-const route = useRoute()
 const userStore = useUserStore()
 
 const email = ref('')
@@ -24,7 +23,7 @@ async function handleLogin() {
     loading.value = true
     await userStore.login(email.value, password.value)
 
-    const redirect = route.query.redirect as string || '/'
+    const redirect = '/'
     router.push(redirect)
   } catch (error: any) {
     ElMessage.error(error.message || '登录失败')
@@ -32,10 +31,6 @@ async function handleLogin() {
     loading.value = false
   }
 }
-
-function goToRegister() {
-  router.push({ name: 'Register', query: route.query })
-}
 </script>
 
 <template>
@@ -77,8 +72,8 @@ function goToRegister() {
       </form>
 
       <div class="footer-links">
-        <span>还没有账号？</span>
-        <a @click="goToRegister">立即注册</a>
+        还没有账号？
+        <router-link :to="{ name: 'Register', query: $route.query }">立即注册</router-link>
       </div>
     </div>
   </div>

frontend/src/views/Register.vue

@@ -48,10 +48,6 @@ async function handleRegister() {
     loading.value = false
   }
 }
-
-function goToLogin() {
-  router.push({ name: 'Login' })
-}
 </script>
 
 <template>
@@ -113,8 +109,8 @@ function goToLogin() {
       </form>
 
       <div class="footer-links">
-        <span>已有账号？</span>
-        <a @click="goToLogin">立即登录</a>
+        已有账号？
+        <router-link :to="{ name: 'Login' }">立即登录</router-link>
       </div>
     </div>
   </div>