P2-01/02 기본코드 종류 및 세부코드 관리 CRUD 구현

- CodeKindModel + CodeKind 컨트롤러 (목록/등록/수정/삭제)
- CodeDetailModel + CodeDetail 컨트롤러 (종류별 세부코드 CRUD)
- View: code_kind/(index,create,edit), code_detail/(index,create,edit)
- 라우트: /admin/code-kinds/*, /admin/code-details/*
- E2E 테스트 7개 전체 통과
- 스크린샷 2개 추가

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/Views/admin/code_kind/create.php

@@ -0,0 +1,23 @@
+<section class="border-b border-gray-300 p-2 shrink-0 bg-control-panel">
+  <span class="text-sm font-bold text-gray-700">기본코드 종류 등록</span>
+</section>
+<div class="border border-gray-300 p-4 mt-2 bg-white max-w-3xl">
+  <form action="<?= base_url('admin/code-kinds/store') ?>" method="POST" class="space-y-4">
+    <?= csrf_field() ?>
+
+    <div class="flex flex-wrap items-center gap-2">
+      <label class="block text-sm font-bold text-gray-700 w-28">코드 <span class="text-red-500">*</span></label>
+      <input class="border border-gray-300 rounded px-3 py-1.5 text-sm w-24 font-mono" name="ck_code" type="text" value="<?= esc(old('ck_code')) ?>" maxlength="20" required placeholder="예: Z"/>
+    </div>
+
+    <div class="flex flex-wrap items-center gap-2">
+      <label class="block text-sm font-bold text-gray-700 w-28">코드명 <span class="text-red-500">*</span></label>
+      <input class="border border-gray-300 rounded px-3 py-1.5 text-sm w-72" name="ck_name" type="text" value="<?= esc(old('ck_name')) ?>" maxlength="100" required placeholder="코드 종류 이름"/>
+    </div>
+
+    <div class="flex gap-2 pt-2">
+      <button type="submit" class="bg-btn-search text-white px-6 py-1.5 rounded-sm text-sm shadow hover:opacity-90 transition">등록</button>
+      <a href="<?= base_url('admin/code-kinds') ?>" class="bg-gray-200 text-gray-700 px-6 py-1.5 rounded-sm text-sm hover:bg-gray-300 transition">취소</a>
+    </div>
+  </form>
+</div>