Auto-growing name box for the new-project tile

Replace the plain <input> with a rows=1 <textarea> that grows to fit
its content on input, so a long or wrapped name stays fully visible
instead of scrolling. Enter still submits rather than adding a
newline, and the box resets to one row after a successful create.

Also make the tile's background transparent (dashed border stays) and
drop its 'Create a project' title, keeping just the Name field --
accessible label moved to aria-label since the placeholder now stands
alone.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

web/src/views/DashboardView.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { computed, onMounted, ref } from 'vue'
+import { computed, nextTick, onMounted, ref } from 'vue'
 import { RouterLink } from 'vue-router'
 import { ApiError } from '../lib/api'
 import { MAX_PROJECTS, useProjectsStore } from '../stores/projects'
@@ -11,6 +11,25 @@ const loadError = ref<string | null>(null)
 const title = ref('')
 const createError = ref<ApiError | null>(null)
 const submitting = ref(false)
+const titleInput = ref<HTMLTextAreaElement | null>(null)
+
+// Grows the textarea to fit its content instead of scrolling, so a name
+// that wraps stays fully visible.
+function resizeTitleInput() {
+  const el = titleInput.value
+  if (!el) return
+  el.style.height = 'auto'
+  el.style.height = `${el.scrollHeight}px`
+}
+
+// Matches a plain <input>'s behaviour: Enter submits rather than inserting
+// a newline (the box only grows from wrapping, e.g. a long pasted name).
+function onTitleKeydown(e: KeyboardEvent) {
+  if (e.key === 'Enter') {
+    e.preventDefault()
+    onCreate()
+  }
+}
 
 const atLimit = computed(() => projects.projects.length >= MAX_PROJECTS)
 
@@ -31,6 +50,8 @@ async function onCreate() {
   try {
     await projects.createProject(title.value)
     title.value = ''
+    await nextTick()
+    resizeTitleInput()
   } catch (e) {
     createError.value = e instanceof ApiError ? e : new ApiError('Could not create the project.', 0)
   } finally {
@@ -59,8 +80,19 @@ async function onCreate() {
 
       <form class="project-card project-card--new" @submit.prevent="onCreate">
         <label>
-          <span class="project-card__title">Create a project</span>
-          <input v-model="title" type="text" maxlength="255" placeholder="Name" required :disabled="atLimit" />
+          <textarea
+            ref="titleInput"
+            v-model="title"
+            class="project-card__name-input"
+            rows="1"
+            maxlength="255"
+            placeholder="Name"
+            aria-label="Name"
+            required
+            :disabled="atLimit"
+            @input="resizeTitleInput"
+            @keydown="onTitleKeydown"
+          ></textarea>
           <small v-if="createError?.fieldError('title')" class="field-error">
             {{ createError.fieldError('title') }}
           </small>