feat(frontend): add MealPlanGrid compact-expandable week grid component

frontend/src/components/MealPlanGrid.vue

@@ -0,0 +1,126 @@
+<!-- frontend/src/components/MealPlanGrid.vue -->
+<template>
+  <div class="meal-plan-grid">
+    <!-- Collapsible header (mobile) -->
+    <div class="grid-toggle-row">
+      <span class="grid-label">This week</span>
+      <button
+        class="grid-toggle-btn"
+        :aria-expanded="!collapsed"
+        :aria-label="collapsed ? 'Show plan' : 'Hide plan'"
+        @click="collapsed = !collapsed"
+      >{{ collapsed ? 'Show plan' : 'Hide plan' }}</button>
+    </div>
+
+    <div v-show="!collapsed" class="grid-body">
+      <!-- Day headers -->
+      <div class="day-headers">
+        <div class="meal-type-col-spacer" />
+        <div
+          v-for="(day, i) in DAY_LABELS"
+          :key="i"
+          class="day-header"
+          :aria-label="day"
+        >{{ day }}</div>
+      </div>
+
+      <!-- One row per meal type -->
+      <div
+        v-for="mealType in activeMealTypes"
+        :key="mealType"
+        class="meal-row"
+      >
+        <div class="meal-type-label">{{ mealType }}</div>
+        <button
+          v-for="dayIndex in 7"
+          :key="dayIndex - 1"
+          class="slot-btn"
+          :class="{ filled: !!getSlot(dayIndex - 1, mealType) }"
+          :aria-label="`${DAY_LABELS[dayIndex - 1]} ${mealType}: ${getSlot(dayIndex - 1, mealType)?.recipe_title ?? 'empty'}`"
+          @click="$emit('slot-click', { dayOfWeek: dayIndex - 1, mealType })"
+        >
+          <span v-if="getSlot(dayIndex - 1, mealType)" class="slot-title">
+            {{ getSlot(dayIndex - 1, mealType)!.recipe_title ?? getSlot(dayIndex - 1, mealType)!.custom_label ?? '...' }}
+          </span>
+          <span v-else class="slot-empty" aria-hidden="true">+</span>
+        </button>
+      </div>
+
+      <!-- Add meal type row (Paid only) -->
+      <div v-if="canAddMealType" class="add-meal-type-row">
+        <button class="add-meal-type-btn" @click="$emit('add-meal-type')">
+          + Add meal type
+        </button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref } from 'vue'
+import { useMealPlanStore } from '../stores/mealPlan'
+
+defineProps<{
+  activeMealTypes: string[]
+  canAddMealType: boolean
+}>()
+
+defineEmits<{
+  (e: 'slot-click', payload: { dayOfWeek: number; mealType: string }): void
+  (e: 'add-meal-type'): void
+}>()
+
+const store = useMealPlanStore()
+const { getSlot } = store
+
+const collapsed = ref(false)
+
+const DAY_LABELS = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
+</script>
+
+<style scoped>
+.meal-plan-grid { display: flex; flex-direction: column; gap: 0.5rem; }
+
+.grid-toggle-row {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 0.25rem 0;
+}
+.grid-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.07em; opacity: 0.6; }
+.grid-toggle-btn {
+  font-size: 0.75rem; background: none; border: none; cursor: pointer;
+  color: var(--color-accent); padding: 0.2rem 0.5rem;
+}
+
+.grid-body { display: flex; flex-direction: column; gap: 3px; }
+.day-headers { display: grid; grid-template-columns: 3rem repeat(7, 1fr); gap: 3px; }
+.meal-type-col-spacer { }
+.day-header { text-align: center; font-size: 0.7rem; font-weight: 700; padding: 3px; background: var(--color-surface-2); border-radius: 4px; }
+
+.meal-row { display: grid; grid-template-columns: 3rem repeat(7, 1fr); gap: 3px; align-items: start; }
+.meal-type-label { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.05em; opacity: 0.55; display: flex; align-items: center; font-weight: 600; }
+
+.slot-btn {
+  border: 1px dashed var(--color-border);
+  border-radius: 6px;
+  min-height: 44px;
+  background: var(--color-surface);
+  cursor: pointer;
+  padding: 4px;
+  display: flex; align-items: center; justify-content: center;
+  font-size: 0.65rem;
+  transition: border-color 0.15s, background 0.15s;
+  width: 100%;
+}
+.slot-btn:hover { border-color: var(--color-accent); }
+.slot-btn:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
+.slot-btn.filled { border-color: var(--color-success); background: var(--color-success-subtle); }
+.slot-title { text-align: center; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; color: var(--color-text); }
+.slot-empty { opacity: 0.25; font-size: 1rem; }
+
+.add-meal-type-row { padding: 0.4rem 0 0.2rem; }
+.add-meal-type-btn { font-size: 0.75rem; background: none; border: none; cursor: pointer; color: var(--color-accent); padding: 0; }
+
+@media (max-width: 600px) {
+  .day-headers, .meal-row { grid-template-columns: 2.5rem repeat(7, 1fr); }
+}
+</style>