Add per-project card statuses and a kanban board

Statuses
- Migration 006: card_statuses table (project-scoped) and cards.status_id, a
  nullable FK with ON DELETE SET NULL. Every new project is seeded with
  "To do" / "Doing" / "Done"; GET /api/projects/{id}/statuses lists them.
- New cards have no status -- they sit in an "inbox" until moved.

Project view
- Full-width and tabbed: "All tasks" (a flat list, sorted by name
  case-insensitively) and "Kanban" (Inbox plus one column per status).
- Drag a card within or between columns to reorder / restatus; the Inbox
  column has its own name + Add form.

Ordering
- Migration 007: `position` is now a dense 0..n-1 rank within a
  (project_id, status_id) column, not a project-wide order. New composite
  index idx_cards_project_status_position; existing rows re-ranked.
- PUT /api/projects/{id}/cards/order takes { status_id, card_ids } and sets one
  column's contents and order, re-parenting moved-in cards and re-packing their
  source column in a single transaction. PATCH status_id appends the card to the
  end of the destination column.

58 phpunit tests pass; the frontend type-checks and builds.

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

web/src/components/CardRow.vue

@@ -4,7 +4,6 @@ import type { Card } from '../types'
 
 const props = defineProps<{ card: Card }>()
 const emit = defineEmits<{
-  toggle: [complete: boolean]
   'save-text': [text: string]
   delete: []
 }>()
@@ -28,17 +27,7 @@ function commit() {
 </script>
 
 <template>
-  <li class="card-row" :class="{ 'card-row--done': card.complete }">
-    <span class="card-row__handle" aria-hidden="true" title="Drag to reorder">⠿</span>
-
-    <input
-      class="card-row__check"
-      type="checkbox"
-      :checked="card.complete"
-      :aria-label="card.complete ? 'Mark as not done' : 'Mark as done'"
-      @change="emit('toggle', ($event.target as HTMLInputElement).checked)"
-    />
-
+  <li class="card-row">
     <input
       v-model="text"
       class="card-row__text"
@@ -49,6 +38,10 @@ function commit() {
       @keyup.enter="($event.target as HTMLInputElement).blur()"
     />
 
+    <span class="card-row__status" :class="{ 'card-row__status--none': !card.status }">
+      {{ card.status?.name ?? 'No status' }}
+    </span>
+
     <button type="button" class="card-row__delete" aria-label="Delete card" @click="emit('delete')">
       ✕
     </button>

web/src/components/KanbanCard.vue

@@ -0,0 +1,9 @@
+<script setup lang="ts">
+import type { Card } from '../types'
+
+defineProps<{ card: Card }>()
+</script>
+
+<template>
+  <div class="kanban-card">{{ card.text }}</div>
+</template>