feat(board): BoardPostCard, BoardPostForm, simplify CooperativeTagSelector

app/components/BoardPostForm.vue

@@ -0,0 +1,231 @@
+<template>
+  <form class="post-form" @submit.prevent="handleSubmit">
+    <div class="form-header">
+      <h3 class="form-title">{{ isEdit ? 'Edit post' : 'New post' }}</h3>
+    </div>
+
+    <div class="field">
+      <label for="post-title">Title</label>
+      <input
+        id="post-title"
+        v-model="form.title"
+        type="text"
+        maxlength="120"
+        placeholder="Short summary"
+      >
+      <div class="char-count">{{ form.title.length }}/120</div>
+    </div>
+
+    <div class="field">
+      <label for="post-seeking">Seeking</label>
+      <textarea
+        id="post-seeking"
+        v-model="form.seeking"
+        rows="3"
+        maxlength="500"
+        placeholder="What are you looking for?"
+      />
+      <div class="char-count">{{ form.seeking.length }}/500</div>
+    </div>
+
+    <div class="field">
+      <label for="post-offering">Offering</label>
+      <textarea
+        id="post-offering"
+        v-model="form.offering"
+        rows="3"
+        maxlength="500"
+        placeholder="What can you offer?"
+      />
+      <div class="char-count">{{ form.offering.length }}/500</div>
+    </div>
+
+    <div class="field">
+      <label for="post-note">Note (optional)</label>
+      <textarea
+        id="post-note"
+        v-model="form.note"
+        rows="2"
+        maxlength="300"
+        placeholder="Anything else to add?"
+      />
+      <div class="char-count">{{ form.note.length }}/300</div>
+    </div>
+
+    <div v-if="tags.length" class="field">
+      <label>Tags</label>
+      <div class="pill-grid">
+        <button
+          v-for="tag in tags"
+          :key="tag.slug"
+          type="button"
+          class="pill"
+          :class="{ selected: form.tags.includes(tag.slug) }"
+          @click="toggleTag(tag.slug)"
+        >{{ tag.label || tag.name || tag.slug }}</button>
+      </div>
+    </div>
+
+    <p v-if="error" class="form-error">{{ error }}</p>
+
+    <div class="form-actions">
+      <button type="button" class="btn" @click="$emit('cancel')">Cancel</button>
+      <button type="submit" class="btn btn-primary">
+        {{ isEdit ? 'Save changes' : 'Post' }}
+      </button>
+    </div>
+  </form>
+</template>
+
+<script setup>
+const props = defineProps({
+  post: { type: Object, default: null },
+  tags: { type: Array, default: () => [] },
+})
+
+const emit = defineEmits(['submit', 'cancel'])
+
+const isEdit = computed(() => !!props.post)
+
+const form = reactive({
+  title: props.post?.title || '',
+  seeking: props.post?.seeking || '',
+  offering: props.post?.offering || '',
+  note: props.post?.note || '',
+  tags: Array.isArray(props.post?.tags) ? [...props.post.tags] : [],
+})
+
+const error = ref('')
+
+function toggleTag(slug) {
+  const idx = form.tags.indexOf(slug)
+  if (idx === -1) form.tags.push(slug)
+  else form.tags.splice(idx, 1)
+}
+
+function handleSubmit() {
+  error.value = ''
+  const title = form.title.trim()
+  const seeking = form.seeking.trim()
+  const offering = form.offering.trim()
+
+  if (!title) {
+    error.value = 'Title is required.'
+    return
+  }
+  if (!seeking && !offering) {
+    error.value = 'Add at least one of Seeking or Offering.'
+    return
+  }
+
+  emit('submit', {
+    title,
+    seeking,
+    offering,
+    note: form.note.trim(),
+    tags: [...form.tags],
+  })
+}
+</script>
+
+<style scoped>
+.post-form {
+  border: 1px dashed var(--border);
+  padding: 20px 24px;
+  background: var(--bg);
+}
+
+.form-header {
+  margin-bottom: 14px;
+}
+.form-title {
+  font-family: "Brygada 1918", serif;
+  font-size: 18px;
+  font-weight: 500;
+  color: var(--text-bright);
+}
+
+.field {
+  margin-bottom: 12px;
+}
+.field label {
+  display: block;
+  font-size: 10px;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+  color: var(--text-faint);
+  margin-bottom: 3px;
+}
+.field input,
+.field textarea {
+  width: 100%;
+  padding: 5px 8px;
+  font-family: "Commit Mono", monospace;
+  font-size: 13px;
+  color: var(--text-bright);
+  background: var(--input-bg);
+  border: 1px solid var(--border);
+  outline: none;
+  resize: vertical;
+}
+.field input:focus,
+.field textarea:focus {
+  border-color: var(--candle);
+}
+
+.char-count {
+  font-size: 9px;
+  font-family: "Commit Mono", monospace;
+  color: var(--text-faint);
+  text-align: right;
+  margin-top: 2px;
+}
+
+.pill-grid {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 4px;
+}
+.pill {
+  display: inline-flex;
+  align-items: center;
+  padding: 2px 9px;
+  border: 1px dashed var(--border);
+  background: transparent;
+  color: var(--text-faint);
+  font-size: 11px;
+  font-family: "Commit Mono", monospace;
+  cursor: pointer;
+  user-select: none;
+  transition: all 0.12s;
+  white-space: nowrap;
+}
+.pill:hover {
+  color: var(--text-dim);
+  border-color: var(--border-d);
+}
+.pill.selected {
+  background: var(--surface);
+  color: var(--text-bright);
+  border-color: var(--candle);
+  border-style: solid;
+}
+
+.form-error {
+  font-size: 11px;
+  color: var(--ember);
+  margin: 8px 0;
+  padding: 6px 10px;
+  border: 1px dashed var(--ember);
+  background: var(--ember-bg);
+}
+
+.form-actions {
+  display: flex;
+  justify-content: flex-end;
+  gap: 8px;
+  margin-top: 14px;
+  padding-top: 12px;
+  border-top: 1px dashed var(--border);
+}
+</style>