feat: some changes and admin

nextjs/.env.example

@@ -3,3 +3,5 @@ DB_ENDPOINT=localhost
 DB_PORT=3306
 DB_USER=
 DB_PASS=
+
+# After DB is up, apply admin tables (see infra/db/admin_auth.sql)

nextjs/package.json

@@ -9,6 +9,7 @@
     "lint": "next lint"
   },
   "dependencies": {
+    "bcryptjs": "^3.0.3",
     "dotenv": "^16.4.5",
     "i18next": "^23.10.1",
     "mysql2": "^3.11.0",
@@ -20,6 +21,7 @@
     "semantic-ui-css": "^2.5.0"
   },
   "devDependencies": {
+    "@types/bcryptjs": "^2.4.6",
     "@types/node": "^20.14.10",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",

nextjs/src/app/(site)/layout.tsx

@@ -0,0 +1,7 @@
+import type { ReactNode } from 'react';
+
+import { SiteLayout } from '@/components/SiteLayout';
+
+export default function SiteChromeLayout({ children }: { children: ReactNode }) {
+  return <SiteLayout>{children}</SiteLayout>;
+}

nextjs/src/app/(site)/page.tsx

@@ -3,18 +3,18 @@ import style from '@/styles/web.module.scss';
 export default function HomePage() {
   return (
     <div className={style.mainBody}>
-      <div className={style.evojapan2025} />
+      <div className={style.evojapan2026} />
       <div className={style.padding} />
       <div className={style.evojapan2023kaisaikettei} />
       <div className={style.padding} />
       <div className={style.group}>
         <div className={style.evojapan2023catherinetonamel}>
-          <a href="https://tonamel.com/competition/VD6y8" rel="noopener noreferrer" target="_blank">
+          <a href="https://tonamel.com/competition/u2GRP" rel="noopener noreferrer" target="_blank">
             &nbsp;
           </a>
         </div>
         <div className={style.evojapan2023catherinefullbodytonamel}>
-          <a href="https://tonamel.com/competition/dgdQ9" rel="noopener noreferrer" target="_blank">
+          <a href="https://tonamel.com/competition/BxuNE" rel="noopener noreferrer" target="_blank">
             &nbsp;
           </a>
         </div>

nextjs/src/app/admin/(dashboard)/archive/ArchiveAdminClient.tsx

@@ -0,0 +1,147 @@
+'use client';
+
+import { useCallback, useEffect, useState } from 'react';
+
+import Link from 'next/link';
+
+import style from '@/styles/admin.module.scss';
+
+type ArchiveRow = {
+  id: number;
+  title: string;
+  youtube_id: string;
+};
+
+export function ArchiveAdminClient() {
+  const [items, setItems] = useState<ArchiveRow[]>([]);
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(true);
+  const [title, setTitle] = useState('');
+  const [youtubeId, setYoutubeId] = useState('');
+
+  const load = useCallback(async () => {
+    setError('');
+    const res = await fetch('/api/admin/archive', { credentials: 'include' });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Failed to load');
+      setLoading(false);
+      return;
+    }
+    setItems((data as { items: ArchiveRow[] }).items ?? []);
+    setLoading(false);
+  }, []);
+
+  useEffect(() => {
+    load();
+  }, [load]);
+
+  function updateLocal(id: number, patch: Partial<ArchiveRow>) {
+    setItems((prev) => prev.map((r) => (r.id === id ? { ...r, ...patch } : r)));
+  }
+
+  async function save(row: ArchiveRow) {
+    setError('');
+    const res = await fetch(`/api/admin/archive/${row.id}`, {
+      method: 'PATCH',
+      headers: { 'Content-Type': 'application/json' },
+      credentials: 'include',
+      body: JSON.stringify({ title: row.title, youtube_id: row.youtube_id }),
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Save failed');
+      return;
+    }
+    await load();
+  }
+
+  async function remove(id: number) {
+    if (!window.confirm('Delete?')) return;
+    setError('');
+    const res = await fetch(`/api/admin/archive/${id}`, { method: 'DELETE', credentials: 'include' });
+    if (!res.ok) {
+      const data = await res.json().catch(() => ({}));
+      setError((data as { error?: string }).error ?? 'Delete failed');
+      return;
+    }
+    await load();
+  }
+
+  async function add(e: React.FormEvent) {
+    e.preventDefault();
+    setError('');
+    const res = await fetch('/api/admin/archive', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      credentials: 'include',
+      body: JSON.stringify({ title, youtube_id: youtubeId }),
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Create failed');
+      return;
+    }
+    setTitle('');
+    setYoutubeId('');
+    await load();
+  }
+
+  return (
+    <div className={style.card}>
+      <p>
+        <Link href="/admin">← Dashboard</Link>
+      </p>
+      <h1 className={style.title}>Archive</h1>
+      {error ? <p className={style.error}>{error}</p> : null}
+      {loading ? <p>Loading…</p> : null}
+      {!loading &&
+        items.map((row) => (
+          <div key={row.id} style={{ marginBottom: 24, paddingBottom: 16, borderBottom: '1px solid #eee' }}>
+            <label className={style.label}>
+              title
+              <input
+                className={style.input}
+                value={row.title}
+                onChange={(e) => updateLocal(row.id, { title: e.target.value })}
+              />
+            </label>
+            <label className={style.label}>
+              youtube_id
+              <input
+                className={style.input}
+                value={row.youtube_id}
+                onChange={(e) => updateLocal(row.id, { youtube_id: e.target.value })}
+              />
+            </label>
+            <div className={style.rowActions}>
+              <button type="button" className={style.btn} onClick={() => save(row)}>
+                Save
+              </button>
+              <button type="button" className={style.btnDanger} onClick={() => remove(row.id)}>
+                Delete
+              </button>
+            </div>
+          </div>
+        ))}
+
+      <hr className={style.hr} />
+      <h2 className={style.title} style={{ fontSize: '1.1rem' }}>
+        New entry
+      </h2>
+      <form className={style.form} style={{ maxWidth: 480 }} onSubmit={add}>
+        <label className={style.label}>
+          title
+          <input className={style.input} value={title} onChange={(e) => setTitle(e.target.value)} required />
+        </label>
+        <label className={style.label}>
+          youtube_id
+          <input className={style.input} value={youtubeId} onChange={(e) => setYoutubeId(e.target.value)} required />
+        </label>
+        <button className={style.btn} type="submit">
+          Add
+        </button>
+      </form>
+    </div>
+  );
+}

nextjs/src/app/admin/(dashboard)/archive/page.tsx

@@ -0,0 +1,8 @@
+import { requireAdmin } from '@/lib/auth/requireAdmin';
+
+import { ArchiveAdminClient } from './ArchiveAdminClient';
+
+export default async function AdminArchivePage() {
+  await requireAdmin();
+  return <ArchiveAdminClient />;
+}

nextjs/src/app/admin/(dashboard)/guide/GuideAdminClient.tsx

@@ -0,0 +1,170 @@
+'use client';
+
+import { useCallback, useEffect, useState } from 'react';
+
+import Link from 'next/link';
+
+import style from '@/styles/admin.module.scss';
+
+type GuideRow = {
+  id: number;
+  title: string;
+  description: string | null;
+  youtube_id: string;
+};
+
+export function GuideAdminClient() {
+  const [items, setItems] = useState<GuideRow[]>([]);
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(true);
+  const [title, setTitle] = useState('');
+  const [description, setDescription] = useState('');
+  const [youtubeId, setYoutubeId] = useState('');
+
+  const load = useCallback(async () => {
+    setError('');
+    const res = await fetch('/api/admin/guide', { credentials: 'include' });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Failed to load');
+      setLoading(false);
+      return;
+    }
+    setItems((data as { items: GuideRow[] }).items ?? []);
+    setLoading(false);
+  }, []);
+
+  useEffect(() => {
+    load();
+  }, [load]);
+
+  function updateLocal(id: number, patch: Partial<GuideRow>) {
+    setItems((prev) => prev.map((r) => (r.id === id ? { ...r, ...patch } : r)));
+  }
+
+  async function save(row: GuideRow) {
+    setError('');
+    const res = await fetch(`/api/admin/guide/${row.id}`, {
+      method: 'PATCH',
+      headers: { 'Content-Type': 'application/json' },
+      credentials: 'include',
+      body: JSON.stringify({
+        title: row.title,
+        description: row.description ?? '',
+        youtube_id: row.youtube_id,
+      }),
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Save failed');
+      return;
+    }
+    await load();
+  }
+
+  async function remove(id: number) {
+    if (!window.confirm('Delete this entry?')) return;
+    setError('');
+    const res = await fetch(`/api/admin/guide/${id}`, { method: 'DELETE', credentials: 'include' });
+    if (!res.ok) {
+      const data = await res.json().catch(() => ({}));
+      setError((data as { error?: string }).error ?? 'Delete failed');
+      return;
+    }
+    await load();
+  }
+
+  async function add(e: React.FormEvent) {
+    e.preventDefault();
+    setError('');
+    const res = await fetch('/api/admin/guide', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      credentials: 'include',
+      body: JSON.stringify({ title, description, youtube_id: youtubeId }),
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Create failed');
+      return;
+    }
+    setTitle('');
+    setDescription('');
+    setYoutubeId('');
+    await load();
+  }
+
+  return (
+    <div className={style.card}>
+      <p>
+        <Link href="/admin">← Dashboard</Link>
+      </p>
+      <h1 className={style.title}>Guide</h1>
+      {error ? <p className={style.error}>{error}</p> : null}
+      {loading ? <p>Loading…</p> : null}
+      {!loading &&
+        items.map((row) => (
+          <div key={row.id} style={{ marginBottom: 24, paddingBottom: 16, borderBottom: '1px solid #eee' }}>
+            <label className={style.label}>
+              title
+              <input
+                className={style.input}
+                value={row.title}
+                onChange={(e) => updateLocal(row.id, { title: e.target.value })}
+              />
+            </label>
+            <label className={style.label}>
+              description
+              <textarea
+                className={`${style.input} ${style.textarea}`}
+                value={row.description ?? ''}
+                onChange={(e) => updateLocal(row.id, { description: e.target.value })}
+              />
+            </label>
+            <label className={style.label}>
+              youtube_id
+              <input
+                className={style.input}
+                value={row.youtube_id}
+                onChange={(e) => updateLocal(row.id, { youtube_id: e.target.value })}
+              />
+            </label>
+            <div className={style.rowActions}>
+              <button type="button" className={style.btn} onClick={() => save(row)}>
+                Save
+              </button>
+              <button type="button" className={style.btnDanger} onClick={() => remove(row.id)}>
+                Delete
+              </button>
+            </div>
+          </div>
+        ))}
+
+      <hr className={style.hr} />
+      <h2 className={style.title} style={{ fontSize: '1.1rem' }}>
+        New entry
+      </h2>
+      <form className={style.form} style={{ maxWidth: 480 }} onSubmit={add}>
+        <label className={style.label}>
+          title
+          <input className={style.input} value={title} onChange={(e) => setTitle(e.target.value)} required />
+        </label>
+        <label className={style.label}>
+          description
+          <textarea
+            className={`${style.input} ${style.textarea}`}
+            value={description}
+            onChange={(e) => setDescription(e.target.value)}
+          />
+        </label>
+        <label className={style.label}>
+          youtube_id
+          <input className={style.input} value={youtubeId} onChange={(e) => setYoutubeId(e.target.value)} required />
+        </label>
+        <button className={style.btn} type="submit">
+          Add
+        </button>
+      </form>
+    </div>
+  );
+}

nextjs/src/app/admin/(dashboard)/guide/page.tsx

@@ -0,0 +1,8 @@
+import { requireAdmin } from '@/lib/auth/requireAdmin';
+
+import { GuideAdminClient } from './GuideAdminClient';
+
+export default async function AdminGuidePage() {
+  await requireAdmin();
+  return <GuideAdminClient />;
+}

nextjs/src/app/admin/(dashboard)/layout.tsx

@@ -0,0 +1,8 @@
+import type { ReactNode } from 'react';
+
+import { requireLogin } from '@/lib/auth/requireAdmin';
+
+export default async function AdminDashboardLayout({ children }: { children: ReactNode }) {
+  await requireLogin();
+  return <>{children}</>;
+}

nextjs/src/app/admin/(dashboard)/page.tsx

@@ -0,0 +1,49 @@
+import Link from 'next/link';
+
+import { LogoutButton } from '@/components/admin/LogoutButton';
+import { getSessionUser } from '@/lib/auth/session';
+import style from '@/styles/admin.module.scss';
+
+export default async function AdminDashboardPage() {
+  const user = await getSessionUser();
+  if (!user) {
+    return null;
+  }
+
+  return (
+    <div className={style.card}>
+      <h1 className={style.title}>Admin</h1>
+      <p className={style.sub}>
+        Signed in as <strong>{user.email}</strong>
+        {user.is_admin ? ' (administrator)' : ''}
+      </p>
+      {!user.is_admin && (
+        <p className={style.error}>
+          You do not have permission to edit content. Ask an administrator to grant admin access.
+        </p>
+      )}
+      {user.is_admin && (
+        <ul style={{ lineHeight: 1.8 }}>
+          <li>
+            <Link href="/admin/users">Users (approval &amp; roles)</Link>
+          </li>
+          <li>
+            <Link href="/admin/players">Players</Link>
+          </li>
+          <li>
+            <Link href="/admin/guide">Guide</Link>
+          </li>
+          <li>
+            <Link href="/admin/archive">Archive</Link>
+          </li>
+          <li>
+            <Link href="/admin/qa">Q&amp;A</Link>
+          </li>
+        </ul>
+      )}
+      <div style={{ marginTop: 16 }}>
+        <LogoutButton />
+      </div>
+    </div>
+  );
+}

nextjs/src/app/admin/(dashboard)/players/PlayersAdminClient.tsx

@@ -0,0 +1,184 @@
+'use client';
+
+import { useCallback, useEffect, useState } from 'react';
+
+import Link from 'next/link';
+
+import style from '@/styles/admin.module.scss';
+
+type Char = { id: number; name_id: string; name: string; name_jp: string };
+type PlayerRow = {
+  id: number;
+  player_key: string;
+  player_name: string;
+  description: string | null;
+  image: string | null;
+  character_id: string | null;
+  name_id?: string;
+  name_jp?: string;
+};
+
+export function PlayersAdminClient() {
+  const [players, setPlayers] = useState<PlayerRow[]>([]);
+  const [characters, setCharacters] = useState<Char[]>([]);
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(true);
+
+  const [playerKey, setPlayerKey] = useState('');
+  const [playerName, setPlayerName] = useState('');
+  const [description, setDescription] = useState('');
+  const [image, setImage] = useState('');
+  const [characterId, setCharacterId] = useState('');
+
+  const load = useCallback(async () => {
+    setError('');
+    const [pr, cr] = await Promise.all([
+      fetch('/api/admin/players', { credentials: 'include' }),
+      fetch('/api/admin/characters', { credentials: 'include' }),
+    ]);
+    const pj = await pr.json().catch(() => ({}));
+    const cj = await cr.json().catch(() => ({}));
+    if (!pr.ok) {
+      setError((pj as { error?: string }).error ?? 'Failed to load players');
+      setLoading(false);
+      return;
+    }
+    if (!cr.ok) {
+      setError((cj as { error?: string }).error ?? 'Failed to load characters');
+      setLoading(false);
+      return;
+    }
+    setPlayers((pj as { players: PlayerRow[] }).players ?? []);
+    setCharacters((cj as { characters: Char[] }).characters ?? []);
+    setLoading(false);
+  }, []);
+
+  useEffect(() => {
+    load();
+  }, [load]);
+
+  async function addPlayer(e: React.FormEvent) {
+    e.preventDefault();
+    setError('');
+    const res = await fetch('/api/admin/players', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      credentials: 'include',
+      body: JSON.stringify({
+        player_key: playerKey,
+        player_name: playerName,
+        description,
+        image: image || null,
+        character_id: characterId,
+      }),
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Create failed');
+      return;
+    }
+    setPlayerKey('');
+    setPlayerName('');
+    setDescription('');
+    setImage('');
+    setCharacterId('');
+    await load();
+  }
+
+  async function remove(id: number) {
+    if (!window.confirm('Delete this player?')) return;
+    setError('');
+    const res = await fetch(`/api/admin/players/${id}`, { method: 'DELETE', credentials: 'include' });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Delete failed');
+      return;
+    }
+    await load();
+  }
+
+  return (
+    <div className={style.card}>
+      <p>
+        <Link href="/admin">← Dashboard</Link>
+      </p>
+      <h1 className={style.title}>Players</h1>
+      {error ? <p className={style.error}>{error}</p> : null}
+      {loading ? <p>Loading…</p> : null}
+      {!loading && (
+        <>
+          <table className={style.table}>
+            <thead>
+              <tr>
+                <th>Key</th>
+                <th>Name</th>
+                <th>Character</th>
+                <th />
+              </tr>
+            </thead>
+            <tbody>
+              {players.map((p) => (
+                <tr key={p.id}>
+                  <td>{p.player_key}</td>
+                  <td>{p.player_name}</td>
+                  <td>{p.name_jp ?? p.character_id}</td>
+                  <td>
+                    <button type="button" className={style.btnDanger} onClick={() => remove(p.id)}>
+                      Delete
+                    </button>
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+
+          <hr className={style.hr} />
+          <h2 className={style.title} style={{ fontSize: '1.1rem' }}>
+            Add player
+          </h2>
+          <form className={style.form} style={{ maxWidth: 480 }} onSubmit={addPlayer}>
+            <label className={style.label}>
+              player_key
+              <input className={style.input} value={playerKey} onChange={(e) => setPlayerKey(e.target.value)} required />
+            </label>
+            <label className={style.label}>
+              player_name
+              <input className={style.input} value={playerName} onChange={(e) => setPlayerName(e.target.value)} required />
+            </label>
+            <label className={style.label}>
+              description
+              <textarea
+                className={`${style.input} ${style.textarea}`}
+                value={description}
+                onChange={(e) => setDescription(e.target.value)}
+              />
+            </label>
+            <label className={style.label}>
+              image URL (optional)
+              <input className={style.input} value={image} onChange={(e) => setImage(e.target.value)} />
+            </label>
+            <label className={style.label}>
+              character
+              <select
+                className={style.input}
+                value={characterId}
+                onChange={(e) => setCharacterId(e.target.value)}
+                required
+              >
+                <option value="">—</option>
+                {characters.map((c) => (
+                  <option key={c.id} value={c.id}>
+                    {c.name_jp} ({c.name_id})
+                  </option>
+                ))}
+              </select>
+            </label>
+            <button className={style.btn} type="submit">
+              Add
+            </button>
+          </form>
+        </>
+      )}
+    </div>
+  );
+}

nextjs/src/app/admin/(dashboard)/players/page.tsx

@@ -0,0 +1,8 @@
+import { requireAdmin } from '@/lib/auth/requireAdmin';
+
+import { PlayersAdminClient } from './PlayersAdminClient';
+
+export default async function AdminPlayersPage() {
+  await requireAdmin();
+  return <PlayersAdminClient />;
+}

nextjs/src/app/admin/(dashboard)/qa/QaAdminClient.tsx

@@ -0,0 +1,157 @@
+'use client';
+
+import { useCallback, useEffect, useState } from 'react';
+
+import Link from 'next/link';
+
+import style from '@/styles/admin.module.scss';
+
+type ContactRow = {
+  id: number;
+  question: string;
+  answer: string;
+};
+
+export function QaAdminClient() {
+  const [items, setItems] = useState<ContactRow[]>([]);
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(true);
+  const [question, setQuestion] = useState('');
+  const [answer, setAnswer] = useState('');
+
+  const load = useCallback(async () => {
+    setError('');
+    const res = await fetch('/api/admin/contact', { credentials: 'include' });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Failed to load');
+      setLoading(false);
+      return;
+    }
+    setItems((data as { items: ContactRow[] }).items ?? []);
+    setLoading(false);
+  }, []);
+
+  useEffect(() => {
+    load();
+  }, [load]);
+
+  function updateLocal(id: number, patch: Partial<ContactRow>) {
+    setItems((prev) => prev.map((r) => (r.id === id ? { ...r, ...patch } : r)));
+  }
+
+  async function save(row: ContactRow) {
+    setError('');
+    const res = await fetch(`/api/admin/contact/${row.id}`, {
+      method: 'PATCH',
+      headers: { 'Content-Type': 'application/json' },
+      credentials: 'include',
+      body: JSON.stringify({ question: row.question, answer: row.answer }),
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Save failed');
+      return;
+    }
+    await load();
+  }
+
+  async function remove(id: number) {
+    if (!window.confirm('Delete?')) return;
+    setError('');
+    const res = await fetch(`/api/admin/contact/${id}`, { method: 'DELETE', credentials: 'include' });
+    if (!res.ok) {
+      const data = await res.json().catch(() => ({}));
+      setError((data as { error?: string }).error ?? 'Delete failed');
+      return;
+    }
+    await load();
+  }
+
+  async function add(e: React.FormEvent) {
+    e.preventDefault();
+    setError('');
+    const res = await fetch('/api/admin/contact', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      credentials: 'include',
+      body: JSON.stringify({ question, answer }),
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Create failed');
+      return;
+    }
+    setQuestion('');
+    setAnswer('');
+    await load();
+  }
+
+  return (
+    <div className={style.card}>
+      <p>
+        <Link href="/admin">← Dashboard</Link>
+      </p>
+      <h1 className={style.title}>Q&amp;A</h1>
+      {error ? <p className={style.error}>{error}</p> : null}
+      {loading ? <p>Loading…</p> : null}
+      {!loading &&
+        items.map((row) => (
+          <div key={row.id} style={{ marginBottom: 24, paddingBottom: 16, borderBottom: '1px solid #eee' }}>
+            <label className={style.label}>
+              question
+              <textarea
+                className={`${style.input} ${style.textarea}`}
+                value={row.question}
+                onChange={(e) => updateLocal(row.id, { question: e.target.value })}
+              />
+            </label>
+            <label className={style.label}>
+              answer
+              <textarea
+                className={`${style.input} ${style.textarea}`}
+                value={row.answer}
+                onChange={(e) => updateLocal(row.id, { answer: e.target.value })}
+              />
+            </label>
+            <div className={style.rowActions}>
+              <button type="button" className={style.btn} onClick={() => save(row)}>
+                Save
+              </button>
+              <button type="button" className={style.btnDanger} onClick={() => remove(row.id)}>
+                Delete
+              </button>
+            </div>
+          </div>
+        ))}
+
+      <hr className={style.hr} />
+      <h2 className={style.title} style={{ fontSize: '1.1rem' }}>
+        New Q&amp;A
+      </h2>
+      <form className={style.form} style={{ maxWidth: 480 }} onSubmit={add}>
+        <label className={style.label}>
+          question
+          <textarea
+            className={`${style.input} ${style.textarea}`}
+            value={question}
+            onChange={(e) => setQuestion(e.target.value)}
+            required
+          />
+        </label>
+        <label className={style.label}>
+          answer
+          <textarea
+            className={`${style.input} ${style.textarea}`}
+            value={answer}
+            onChange={(e) => setAnswer(e.target.value)}
+            required
+          />
+        </label>
+        <button className={style.btn} type="submit">
+          Add
+        </button>
+      </form>
+    </div>
+  );
+}

nextjs/src/app/admin/(dashboard)/qa/page.tsx

@@ -0,0 +1,8 @@
+import { requireAdmin } from '@/lib/auth/requireAdmin';
+
+import { QaAdminClient } from './QaAdminClient';
+
+export default async function AdminQaPage() {
+  await requireAdmin();
+  return <QaAdminClient />;
+}

nextjs/src/app/admin/(dashboard)/users/UsersAdminClient.tsx

@@ -0,0 +1,100 @@
+'use client';
+
+import { useCallback, useEffect, useState } from 'react';
+
+import Link from 'next/link';
+
+import style from '@/styles/admin.module.scss';
+
+type UserRow = {
+  id: number;
+  email: string;
+  is_approved: number | boolean;
+  is_admin: number | boolean;
+  created_at: string;
+};
+
+export function UsersAdminClient() {
+  const [users, setUsers] = useState<UserRow[]>([]);
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(true);
+
+  const load = useCallback(async () => {
+    setError('');
+    const res = await fetch('/api/admin/users', { credentials: 'include' });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Failed to load');
+      setLoading(false);
+      return;
+    }
+    setUsers((data as { users: UserRow[] }).users ?? []);
+    setLoading(false);
+  }, []);
+
+  useEffect(() => {
+    load();
+  }, [load]);
+
+  async function patch(id: number, body: { is_approved?: boolean; is_admin?: boolean }) {
+    setError('');
+    const res = await fetch(`/api/admin/users/${id}`, {
+      method: 'PATCH',
+      headers: { 'Content-Type': 'application/json' },
+      credentials: 'include',
+      body: JSON.stringify(body),
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      setError((data as { error?: string }).error ?? 'Update failed');
+      return;
+    }
+    await load();
+  }
+
+  return (
+    <div className={style.card}>
+      <p>
+        <Link href="/admin">← Dashboard</Link>
+      </p>
+      <h1 className={style.title}>Users</h1>
+      <p className={style.sub}>Approve new accounts and grant admin role.</p>
+      {error ? <p className={style.error}>{error}</p> : null}
+      {loading ? <p>Loading…</p> : null}
+      {!loading && (
+        <table className={style.table}>
+          <thead>
+            <tr>
+              <th>Email</th>
+              <th>Approved</th>
+              <th>Admin</th>
+              <th>Created</th>
+            </tr>
+          </thead>
+          <tbody>
+            {users.map((u) => (
+              <tr key={u.id}>
+                <td>{u.email}</td>
+                <td>
+                  <input
+                    type="checkbox"
+                    checked={Boolean(u.is_approved)}
+                    onChange={(e) => patch(u.id, { is_approved: e.target.checked })}
+                  />
+                </td>
+                <td>
+                  <input
+                    type="checkbox"
+                    checked={Boolean(u.is_admin)}
+                    onChange={(e) => patch(u.id, { is_admin: e.target.checked })}
+                  />
+                </td>
+                <td>{String(u.created_at)}</td>
+              </tr>
+            ))}
+          </tbody>
+        </table>
+      )}
+    </div>
+  );
+}

nextjs/src/app/admin/(dashboard)/users/page.tsx

@@ -0,0 +1,8 @@
+import { requireAdmin } from '@/lib/auth/requireAdmin';
+
+import { UsersAdminClient } from './UsersAdminClient';
+
+export default async function AdminUsersPage() {
+  await requireAdmin();
+  return <UsersAdminClient />;
+}

nextjs/src/app/admin/layout.tsx

@@ -0,0 +1,25 @@
+import type { Metadata } from 'next';
+import type { ReactNode } from 'react';
+
+import Link from 'next/link';
+
+import style from '@/styles/admin.module.scss';
+
+export const metadata: Metadata = {
+  title: 'Admin — Catherine League',
+  robots: 'noindex, nofollow',
+};
+
+export default function AdminRootLayout({ children }: { children: ReactNode }) {
+  return (
+    <div className={style.wrap}>
+      <nav className={style.nav}>
+        <Link href="/">← Site</Link>
+        <Link href="/admin/login">Login</Link>
+        <Link href="/admin/register">Register</Link>
+        <Link href="/admin">Dashboard</Link>
+      </nav>
+      {children}
+    </div>
+  );
+}

nextjs/src/app/admin/login/page.tsx

@@ -0,0 +1,78 @@
+'use client';
+
+import { useRouter } from 'next/navigation';
+import { useState } from 'react';
+
+import Link from 'next/link';
+
+import style from '@/styles/admin.module.scss';
+
+export default function AdminLoginPage() {
+  const router = useRouter();
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(false);
+
+  async function onSubmit(e: React.FormEvent) {
+    e.preventDefault();
+    setError('');
+    setLoading(true);
+    try {
+      const res = await fetch('/api/auth/login', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ email, password }),
+        credentials: 'include',
+      });
+      const data = await res.json().catch(() => ({}));
+      if (!res.ok) {
+        setError((data as { error?: string }).error ?? 'Login failed');
+        setLoading(false);
+        return;
+      }
+      router.push('/admin');
+      router.refresh();
+    } catch {
+      setError('Network error');
+    }
+    setLoading(false);
+  }
+
+  return (
+    <div className={style.card}>
+      <h1 className={style.title}>Admin login</h1>
+      <p className={style.sub}>
+        No account? <Link href="/admin/register">Register</Link> — an administrator must approve you before you can sign in.
+      </p>
+      <form className={style.form} onSubmit={onSubmit}>
+        <label className={style.label}>
+          Email
+          <input
+            className={style.input}
+            type="email"
+            autoComplete="email"
+            value={email}
+            onChange={(e) => setEmail(e.target.value)}
+            required
+          />
+        </label>
+        <label className={style.label}>
+          Password
+          <input
+            className={style.input}
+            type="password"
+            autoComplete="current-password"
+            value={password}
+            onChange={(e) => setPassword(e.target.value)}
+            required
+          />
+        </label>
+        {error ? <p className={style.error}>{error}</p> : null}
+        <button className={style.btn} type="submit" disabled={loading}>
+          {loading ? 'Signing in…' : 'Sign in'}
+        </button>
+      </form>
+    </div>
+  );
+}

nextjs/src/app/admin/no-access/page.tsx

@@ -0,0 +1,18 @@
+import Link from 'next/link';
+
+import style from '@/styles/admin.module.scss';
+
+export default function AdminNoAccessPage() {
+  return (
+    <div className={style.card}>
+      <h1 className={style.title}>No admin access</h1>
+      <p className={style.sub}>
+        Your account is approved, but you do not have administrator privileges for content management. Ask an existing admin to
+        grant you the admin role.
+      </p>
+      <p>
+        <Link href="/admin">Dashboard</Link>
+      </p>
+    </div>
+  );
+}

nextjs/src/app/admin/pending/page.tsx

@@ -0,0 +1,18 @@
+import Link from 'next/link';
+
+import style from '@/styles/admin.module.scss';
+
+export default function AdminPendingPage() {
+  return (
+    <div className={style.card}>
+      <h1 className={style.title}>Account pending</h1>
+      <p className={style.sub}>
+        Your account has not been approved yet, or approval was revoked. You cannot use the admin area until an administrator
+        approves you.
+      </p>
+      <p>
+        <Link href="/admin/login">Back to login</Link>
+      </p>
+    </div>
+  );
+}

nextjs/src/app/admin/register/page.tsx

@@ -0,0 +1,81 @@
+'use client';
+
+import { useState } from 'react';
+
+import Link from 'next/link';
+
+import style from '@/styles/admin.module.scss';
+
+export default function AdminRegisterPage() {
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [error, setError] = useState('');
+  const [success, setSuccess] = useState('');
+  const [loading, setLoading] = useState(false);
+
+  async function onSubmit(e: React.FormEvent) {
+    e.preventDefault();
+    setError('');
+    setSuccess('');
+    setLoading(true);
+    try {
+      const res = await fetch('/api/auth/register', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ email, password }),
+      });
+      const data = await res.json().catch(() => ({}));
+      if (!res.ok) {
+        setError((data as { error?: string }).error ?? 'Registration failed');
+        setLoading(false);
+        return;
+      }
+      setSuccess((data as { message?: string }).message ?? 'Registered.');
+      setEmail('');
+      setPassword('');
+    } catch {
+      setError('Network error');
+    }
+    setLoading(false);
+  }
+
+  return (
+    <div className={style.card}>
+      <h1 className={style.title}>Register</h1>
+      <p className={style.sub}>
+        After registering, wait for an administrator to approve your account. Then you can{' '}
+        <Link href="/admin/login">sign in</Link>.
+      </p>
+      <form className={style.form} onSubmit={onSubmit}>
+        <label className={style.label}>
+          Email
+          <input
+            className={style.input}
+            type="email"
+            autoComplete="email"
+            value={email}
+            onChange={(e) => setEmail(e.target.value)}
+            required
+          />
+        </label>
+        <label className={style.label}>
+          Password (min. 8 characters)
+          <input
+            className={style.input}
+            type="password"
+            autoComplete="new-password"
+            value={password}
+            onChange={(e) => setPassword(e.target.value)}
+            minLength={8}
+            required
+          />
+        </label>
+        {error ? <p className={style.error}>{error}</p> : null}
+        {success ? <p className={style.success}>{success}</p> : null}
+        <button className={style.btn} type="submit" disabled={loading}>
+          {loading ? 'Submitting…' : 'Register'}
+        </button>
+      </form>
+    </div>
+  );
+}

nextjs/src/app/api/admin/archive/[id]/route.ts

@@ -0,0 +1,63 @@
+import { NextResponse } from 'next/server';
+import type { RowDataPacket } from 'mysql2';
+
+import { requireAdminApi } from '@/lib/auth/apiAuth';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+type Ctx = { params: Promise<{ id: string }> };
+
+export async function PATCH(request: Request, context: Ctx) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const { id: idParam } = await context.params;
+  const id = parseInt(idParam, 10);
+  if (Number.isNaN(id)) {
+    return NextResponse.json({ error: 'Invalid id' }, { status: 400 });
+  }
+
+  const body = await request.json();
+  const updates: string[] = [];
+  const values: unknown[] = [];
+
+  if (body.title !== undefined) {
+    updates.push('title = ?');
+    values.push(String(body.title).trim());
+  }
+  if (body.youtube_id !== undefined) {
+    updates.push('youtube_id = ?');
+    values.push(String(body.youtube_id).trim());
+  }
+
+  if (updates.length === 0) {
+    return NextResponse.json({ error: 'No fields to update' }, { status: 400 });
+  }
+
+  values.push(id);
+  const pool = getPool();
+  await pool.query(`UPDATE archive SET ${updates.join(', ')} WHERE id = ?`, values);
+
+  const [rows] = await pool.query<RowDataPacket[]>('SELECT * FROM archive WHERE id = ?', [id]);
+  return NextResponse.json({ item: rows[0] });
+}
+
+export async function DELETE(_request: Request, context: Ctx) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const { id: idParam } = await context.params;
+  const id = parseInt(idParam, 10);
+  if (Number.isNaN(id)) {
+    return NextResponse.json({ error: 'Invalid id' }, { status: 400 });
+  }
+
+  const pool = getPool();
+  await pool.query('DELETE FROM archive WHERE id = ?', [id]);
+  return NextResponse.json({ ok: true });
+}

nextjs/src/app/api/admin/archive/route.ts

@@ -0,0 +1,37 @@
+import { NextResponse } from 'next/server';
+import type { RowDataPacket } from 'mysql2';
+
+import { requireAdminApi } from '@/lib/auth/apiAuth';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+export async function GET() {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const pool = getPool();
+  const [rows] = await pool.query<RowDataPacket[]>('SELECT * FROM archive ORDER BY id ASC');
+  return NextResponse.json({ items: rows });
+}
+
+export async function POST(request: Request) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const body = await request.json();
+  const title = String(body.title ?? '').trim();
+  const youtubeId = String(body.youtube_id ?? '').trim();
+
+  if (!title || !youtubeId) {
+    return NextResponse.json({ error: 'title and youtube_id required' }, { status: 400 });
+  }
+
+  const pool = getPool();
+  await pool.query('INSERT INTO archive (title, youtube_id) VALUES (?, ?)', [title, youtubeId]);
+  return NextResponse.json({ ok: true });
+}

nextjs/src/app/api/admin/characters/route.ts

@@ -0,0 +1,20 @@
+import { NextResponse } from 'next/server';
+import type { RowDataPacket } from 'mysql2';
+
+import { requireAdminApi } from '@/lib/auth/apiAuth';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+export async function GET() {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const pool = getPool();
+  const [rows] = await pool.query<RowDataPacket[]>(
+    'SELECT id, name_id, name, name_jp FROM characters ORDER BY id ASC'
+  );
+  return NextResponse.json({ characters: rows });
+}

nextjs/src/app/api/admin/contact/[id]/route.ts

@@ -0,0 +1,63 @@
+import { NextResponse } from 'next/server';
+import type { RowDataPacket } from 'mysql2';
+
+import { requireAdminApi } from '@/lib/auth/apiAuth';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+type Ctx = { params: Promise<{ id: string }> };
+
+export async function PATCH(request: Request, context: Ctx) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const { id: idParam } = await context.params;
+  const id = parseInt(idParam, 10);
+  if (Number.isNaN(id)) {
+    return NextResponse.json({ error: 'Invalid id' }, { status: 400 });
+  }
+
+  const body = await request.json();
+  const updates: string[] = [];
+  const values: unknown[] = [];
+
+  if (body.question !== undefined) {
+    updates.push('question = ?');
+    values.push(String(body.question).trim());
+  }
+  if (body.answer !== undefined) {
+    updates.push('answer = ?');
+    values.push(String(body.answer).trim());
+  }
+
+  if (updates.length === 0) {
+    return NextResponse.json({ error: 'No fields to update' }, { status: 400 });
+  }
+
+  values.push(id);
+  const pool = getPool();
+  await pool.query(`UPDATE contact SET ${updates.join(', ')} WHERE id = ?`, values);
+
+  const [rows] = await pool.query<RowDataPacket[]>('SELECT * FROM contact WHERE id = ?', [id]);
+  return NextResponse.json({ item: rows[0] });
+}
+
+export async function DELETE(_request: Request, context: Ctx) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const { id: idParam } = await context.params;
+  const id = parseInt(idParam, 10);
+  if (Number.isNaN(id)) {
+    return NextResponse.json({ error: 'Invalid id' }, { status: 400 });
+  }
+
+  const pool = getPool();
+  await pool.query('DELETE FROM contact WHERE id = ?', [id]);
+  return NextResponse.json({ ok: true });
+}

nextjs/src/app/api/admin/contact/route.ts

@@ -0,0 +1,37 @@
+import { NextResponse } from 'next/server';
+import type { RowDataPacket } from 'mysql2';
+
+import { requireAdminApi } from '@/lib/auth/apiAuth';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+export async function GET() {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const pool = getPool();
+  const [rows] = await pool.query<RowDataPacket[]>('SELECT * FROM contact ORDER BY id ASC');
+  return NextResponse.json({ items: rows });
+}
+
+export async function POST(request: Request) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const body = await request.json();
+  const question = String(body.question ?? '').trim();
+  const answer = String(body.answer ?? '').trim();
+
+  if (!question || !answer) {
+    return NextResponse.json({ error: 'question and answer required' }, { status: 400 });
+  }
+
+  const pool = getPool();
+  await pool.query('INSERT INTO contact (question, answer) VALUES (?, ?)', [question, answer]);
+  return NextResponse.json({ ok: true });
+}

nextjs/src/app/api/admin/guide/[id]/route.ts

@@ -0,0 +1,67 @@
+import { NextResponse } from 'next/server';
+import type { RowDataPacket } from 'mysql2';
+
+import { requireAdminApi } from '@/lib/auth/apiAuth';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+type Ctx = { params: Promise<{ id: string }> };
+
+export async function PATCH(request: Request, context: Ctx) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const { id: idParam } = await context.params;
+  const id = parseInt(idParam, 10);
+  if (Number.isNaN(id)) {
+    return NextResponse.json({ error: 'Invalid id' }, { status: 400 });
+  }
+
+  const body = await request.json();
+  const updates: string[] = [];
+  const values: unknown[] = [];
+
+  if (body.title !== undefined) {
+    updates.push('title = ?');
+    values.push(String(body.title).trim());
+  }
+  if (body.description !== undefined) {
+    updates.push('description = ?');
+    values.push(String(body.description));
+  }
+  if (body.youtube_id !== undefined) {
+    updates.push('youtube_id = ?');
+    values.push(String(body.youtube_id).trim());
+  }
+
+  if (updates.length === 0) {
+    return NextResponse.json({ error: 'No fields to update' }, { status: 400 });
+  }
+
+  values.push(id);
+  const pool = getPool();
+  await pool.query(`UPDATE guide SET ${updates.join(', ')} WHERE id = ?`, values);
+
+  const [rows] = await pool.query<RowDataPacket[]>('SELECT * FROM guide WHERE id = ?', [id]);
+  return NextResponse.json({ item: rows[0] });
+}
+
+export async function DELETE(_request: Request, context: Ctx) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const { id: idParam } = await context.params;
+  const id = parseInt(idParam, 10);
+  if (Number.isNaN(id)) {
+    return NextResponse.json({ error: 'Invalid id' }, { status: 400 });
+  }
+
+  const pool = getPool();
+  await pool.query('DELETE FROM guide WHERE id = ?', [id]);
+  return NextResponse.json({ ok: true });
+}

nextjs/src/app/api/admin/guide/route.ts

@@ -0,0 +1,41 @@
+import { NextResponse } from 'next/server';
+import type { RowDataPacket } from 'mysql2';
+
+import { requireAdminApi } from '@/lib/auth/apiAuth';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+export async function GET() {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const pool = getPool();
+  const [rows] = await pool.query<RowDataPacket[]>('SELECT * FROM guide ORDER BY id ASC');
+  return NextResponse.json({ items: rows });
+}
+
+export async function POST(request: Request) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const body = await request.json();
+  const title = String(body.title ?? '').trim();
+  const description = String(body.description ?? '');
+  const youtubeId = String(body.youtube_id ?? '').trim();
+
+  if (!title || !youtubeId) {
+    return NextResponse.json({ error: 'title and youtube_id required' }, { status: 400 });
+  }
+
+  const pool = getPool();
+  await pool.query(
+    'INSERT INTO guide (title, description, youtube_id) VALUES (?, ?, ?)',
+    [title, description, youtubeId]
+  );
+  return NextResponse.json({ ok: true });
+}

nextjs/src/app/api/admin/players/[id]/route.ts

@@ -0,0 +1,124 @@
+import { NextResponse } from 'next/server';
+import type { RowDataPacket } from 'mysql2';
+
+import { requireAdminApi } from '@/lib/auth/apiAuth';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+type Ctx = { params: Promise<{ id: string }> };
+
+export async function GET(_request: Request, context: Ctx) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const { id: idParam } = await context.params;
+  const id = parseInt(idParam, 10);
+  if (Number.isNaN(id)) {
+    return NextResponse.json({ error: 'Invalid id' }, { status: 400 });
+  }
+
+  const pool = getPool();
+  const [rows] = await pool.query<RowDataPacket[]>(
+    `SELECT p.id, p.player_key, p.player_name, p.description, p.image, p.character_id,
+            c.name_id, c.name, c.name_jp
+     FROM players p
+     LEFT JOIN characters c ON c.id = p.character_id
+     WHERE p.id = ?`,
+    [id]
+  );
+
+  if (rows.length === 0) {
+    return NextResponse.json({ error: 'Not found' }, { status: 404 });
+  }
+
+  return NextResponse.json({ player: rows[0] });
+}
+
+export async function PATCH(request: Request, context: Ctx) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const { id: idParam } = await context.params;
+  const id = parseInt(idParam, 10);
+  if (Number.isNaN(id)) {
+    return NextResponse.json({ error: 'Invalid id' }, { status: 400 });
+  }
+
+  const body = await request.json();
+  const updates: string[] = [];
+  const values: unknown[] = [];
+
+  if (body.player_key !== undefined) {
+    updates.push('player_key = ?');
+    values.push(String(body.player_key).trim());
+  }
+  if (body.player_name !== undefined) {
+    updates.push('player_name = ?');
+    values.push(String(body.player_name).trim());
+  }
+  if (body.description !== undefined) {
+    updates.push('description = ?');
+    values.push(String(body.description));
+  }
+  if (body.image !== undefined) {
+    updates.push('image = ?');
+    values.push(body.image == null ? null : String(body.image));
+  }
+  if (body.character_id !== undefined) {
+    updates.push('character_id = ?');
+    values.push(String(parseInt(String(body.character_id), 10)));
+  }
+
+  if (updates.length === 0) {
+    return NextResponse.json({ error: 'No fields to update' }, { status: 400 });
+  }
+
+  values.push(id);
+  const pool = getPool();
+  await pool.query(`UPDATE players SET ${updates.join(', ')} WHERE id = ?`, values);
+
+  const [rows] = await pool.query<RowDataPacket[]>(
+    `SELECT p.id, p.player_key, p.player_name, p.description, p.image, p.character_id,
+            c.name_id, c.name, c.name_jp
+     FROM players p
+     LEFT JOIN characters c ON c.id = p.character_id
+     WHERE p.id = ?`,
+    [id]
+  );
+
+  return NextResponse.json({ player: rows[0] });
+}
+
+export async function DELETE(_request: Request, context: Ctx) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const { id: idParam } = await context.params;
+  const id = parseInt(idParam, 10);
+  if (Number.isNaN(id)) {
+    return NextResponse.json({ error: 'Invalid id' }, { status: 400 });
+  }
+
+  const pool = getPool();
+  try {
+    await pool.query('DELETE FROM players WHERE id = ?', [id]);
+  } catch (e: unknown) {
+    const code = (e as { errno?: number })?.errno;
+    if (code === 1451) {
+      return NextResponse.json(
+        { error: 'Cannot delete player: referenced by tournament or other records' },
+        { status: 409 }
+      );
+    }
+    throw e;
+  }
+
+  return NextResponse.json({ ok: true });
+}

nextjs/src/app/api/admin/players/route.ts

@@ -0,0 +1,52 @@
+import { NextResponse } from 'next/server';
+import type { RowDataPacket } from 'mysql2';
+
+import { requireAdminApi } from '@/lib/auth/apiAuth';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+export async function GET() {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const pool = getPool();
+  const [rows] = await pool.query<RowDataPacket[]>(
+    `SELECT p.id, p.player_key, p.player_name, p.description, p.image, p.character_id,
+            c.name_id, c.name, c.name_jp
+     FROM players p
+     LEFT JOIN characters c ON c.id = p.character_id
+     ORDER BY p.id ASC`
+  );
+
+  return NextResponse.json({ players: rows });
+}
+
+export async function POST(request: Request) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const body = await request.json();
+  const playerKey = String(body.player_key ?? '').trim();
+  const playerName = String(body.player_name ?? '').trim();
+  const description = String(body.description ?? '');
+  const image = body.image != null ? String(body.image) : null;
+  const characterId = parseInt(String(body.character_id), 10);
+
+  if (!playerKey || !playerName || Number.isNaN(characterId)) {
+    return NextResponse.json({ error: 'player_key, player_name, character_id required' }, { status: 400 });
+  }
+
+  const pool = getPool();
+  await pool.query(
+    `INSERT INTO players (player_key, player_name, description, image, character_id)
+     VALUES (?, ?, ?, ?, ?)`,
+    [playerKey, playerName, description, image, String(characterId)]
+  );
+
+  return NextResponse.json({ ok: true });
+}

nextjs/src/app/api/admin/users/[id]/route.ts

@@ -0,0 +1,63 @@
+import { NextResponse } from 'next/server';
+import type { RowDataPacket } from 'mysql2';
+
+import { requireAdminApi } from '@/lib/auth/apiAuth';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+type Ctx = { params: Promise<{ id: string }> };
+
+export async function PATCH(request: Request, context: Ctx) {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const { id: idParam } = await context.params;
+  const id = parseInt(idParam, 10);
+  if (Number.isNaN(id)) {
+    return NextResponse.json({ error: 'Invalid id' }, { status: 400 });
+  }
+
+  const body = await request.json();
+  const isApproved = typeof body.is_approved === 'boolean' ? body.is_approved : undefined;
+  const isAdmin = typeof body.is_admin === 'boolean' ? body.is_admin : undefined;
+
+  if (isApproved === undefined && isAdmin === undefined) {
+    return NextResponse.json({ error: 'No changes' }, { status: 400 });
+  }
+
+  const pool = getPool();
+
+  if (id === auth.user.id && isApproved === false) {
+    return NextResponse.json({ error: 'Cannot revoke your own approval' }, { status: 400 });
+  }
+  if (id === auth.user.id && isAdmin === false) {
+    return NextResponse.json({ error: 'Cannot remove your own admin role' }, { status: 400 });
+  }
+
+  const updates: string[] = [];
+  const values: unknown[] = [];
+  if (isApproved !== undefined) {
+    updates.push('is_approved = ?');
+    values.push(isApproved ? 1 : 0);
+  }
+  if (isAdmin !== undefined) {
+    updates.push('is_admin = ?');
+    values.push(isAdmin ? 1 : 0);
+  }
+  values.push(id);
+
+  await pool.query(
+    `UPDATE admin_users SET ${updates.join(', ')} WHERE id = ?`,
+    values
+  );
+
+  const [rows] = await pool.query<RowDataPacket[]>(
+    'SELECT id, email, is_approved, is_admin, created_at FROM admin_users WHERE id = ?',
+    [id]
+  );
+
+  return NextResponse.json({ user: rows[0] ?? null });
+}

nextjs/src/app/api/admin/users/route.ts

@@ -0,0 +1,23 @@
+import { NextResponse } from 'next/server';
+import type { RowDataPacket } from 'mysql2';
+
+import { requireAdminApi } from '@/lib/auth/apiAuth';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+export async function GET() {
+  const auth = await requireAdminApi();
+  if (!auth.ok) {
+    return auth.response;
+  }
+
+  const pool = getPool();
+  const [rows] = await pool.query<RowDataPacket[]>(
+    `SELECT id, email, is_approved, is_admin, created_at
+     FROM admin_users
+     ORDER BY created_at DESC`
+  );
+
+  return NextResponse.json({ users: rows });
+}

nextjs/src/app/api/auth/login/route.ts

@@ -0,0 +1,58 @@
+import { NextResponse } from 'next/server';
+
+import { verifyPassword } from '@/lib/auth/password';
+import { createSession } from '@/lib/auth/session';
+import { getPool } from '@/lib/db';
+import type { RowDataPacket } from 'mysql2';
+
+export const dynamic = 'force-dynamic';
+
+export async function POST(request: Request) {
+  try {
+    const body = await request.json();
+    const email = typeof body.email === 'string' ? body.email.trim().toLowerCase() : '';
+    const password = typeof body.password === 'string' ? body.password : '';
+
+    if (!email || !password) {
+      return NextResponse.json({ error: 'Email and password required' }, { status: 400 });
+    }
+
+    const pool = getPool();
+    const [rows] = await pool.query<RowDataPacket[]>(
+      'SELECT id, email, password_hash, is_approved, is_admin FROM admin_users WHERE email = ?',
+      [email]
+    );
+
+    if (rows.length === 0) {
+      return NextResponse.json({ error: 'Invalid email or password' }, { status: 401 });
+    }
+
+    const row = rows[0];
+    const ok = verifyPassword(password, row.password_hash as string);
+    if (!ok) {
+      return NextResponse.json({ error: 'Invalid email or password' }, { status: 401 });
+    }
+
+    if (!row.is_approved) {
+      return NextResponse.json(
+        { error: 'Your account is not approved yet.', code: 'PENDING_APPROVAL' },
+        { status: 403 }
+      );
+    }
+
+    await createSession(row.id as number);
+
+    return NextResponse.json({
+      ok: true,
+      user: {
+        id: row.id,
+        email: row.email,
+        is_approved: Boolean(row.is_approved),
+        is_admin: Boolean(row.is_admin),
+      },
+    });
+  } catch (e) {
+    console.error(e);
+    return NextResponse.json({ error: 'Login failed' }, { status: 500 });
+  }
+}

nextjs/src/app/api/auth/logout/route.ts

@@ -0,0 +1,10 @@
+import { NextResponse } from 'next/server';
+
+import { destroySession } from '@/lib/auth/session';
+
+export const dynamic = 'force-dynamic';
+
+export async function POST() {
+  await destroySession();
+  return NextResponse.json({ ok: true });
+}

nextjs/src/app/api/auth/me/route.ts

@@ -0,0 +1,20 @@
+import { NextResponse } from 'next/server';
+
+import { getSessionUser } from '@/lib/auth/session';
+
+export const dynamic = 'force-dynamic';
+
+export async function GET() {
+  const user = await getSessionUser();
+  if (!user) {
+    return NextResponse.json({ user: null }, { status: 401 });
+  }
+  return NextResponse.json({
+    user: {
+      id: user.id,
+      email: user.email,
+      is_approved: user.is_approved,
+      is_admin: user.is_admin,
+    },
+  });
+}

nextjs/src/app/api/auth/register/route.ts

@@ -0,0 +1,37 @@
+import { NextResponse } from 'next/server';
+
+import { hashPassword } from '@/lib/auth/password';
+import { getPool } from '@/lib/db';
+
+export const dynamic = 'force-dynamic';
+
+export async function POST(request: Request) {
+  try {
+    const body = await request.json();
+    const email = typeof body.email === 'string' ? body.email.trim().toLowerCase() : '';
+    const password = typeof body.password === 'string' ? body.password : '';
+
+    if (!email || !/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)) {
+      return NextResponse.json({ error: 'Valid email is required' }, { status: 400 });
+    }
+    if (password.length < 8) {
+      return NextResponse.json({ error: 'Password must be at least 8 characters' }, { status: 400 });
+    }
+
+    const passwordHash = hashPassword(password);
+    const pool = getPool();
+    await pool.query(
+      `INSERT INTO admin_users (email, password_hash, is_approved, is_admin) VALUES (?, ?, 0, 0)`,
+      [email, passwordHash]
+    );
+
+    return NextResponse.json({ ok: true, message: 'Registration submitted. Wait for an administrator to approve your account.' });
+  } catch (e: unknown) {
+    const code = (e as { code?: string })?.code;
+    if (code === 'ER_DUP_ENTRY') {
+      return NextResponse.json({ error: 'Email already registered' }, { status: 409 });
+    }
+    console.error(e);
+    return NextResponse.json({ error: 'Registration failed' }, { status: 500 });
+  }
+}

nextjs/src/app/layout.tsx

@@ -3,7 +3,6 @@ import { Indie_Flower, M_PLUS_Rounded_1c } from 'next/font/google';
 import type { ReactNode } from 'react';
 
 import { I18nProvider } from '@/components/I18nProvider';
-import { SiteLayout } from '@/components/SiteLayout';
 
 import 'semantic-ui-css/semantic.min.css';
 import './globals.css';
@@ -37,9 +36,7 @@ export default function RootLayout({ children }: { children: ReactNode }) {
   return (
     <html lang="ja" className={`${indieFlower.variable} ${mPlusRounded.variable}`}>
       <body>
-        <I18nProvider>
-          <SiteLayout>{children}</SiteLayout>
-        </I18nProvider>
+        <I18nProvider>{children}</I18nProvider>
       </body>
     </html>
   );

nextjs/src/components/admin/LogoutButton.tsx

@@ -0,0 +1,18 @@
+'use client';
+
+import style from '@/styles/admin.module.scss';
+
+export function LogoutButton() {
+  return (
+    <button
+      type="button"
+      className={style.btnGhost}
+      onClick={async () => {
+        await fetch('/api/auth/logout', { method: 'POST', credentials: 'include' });
+        window.location.href = '/admin/login';
+      }}
+    >
+      Log out
+    </button>
+  );
+}

nextjs/src/lib/auth/apiAuth.ts

@@ -0,0 +1,20 @@
+import { NextResponse } from 'next/server';
+
+import type { AdminUserRow } from '@/lib/auth/session';
+import { getSessionUser } from '@/lib/auth/session';
+
+export async function requireAdminApi(): Promise<
+  { ok: true; user: AdminUserRow } | { ok: false; response: NextResponse }
+> {
+  const user = await getSessionUser();
+  if (!user) {
+    return { ok: false, response: NextResponse.json({ error: 'Unauthorized' }, { status: 401 }) };
+  }
+  if (!user.is_approved) {
+    return { ok: false, response: NextResponse.json({ error: 'Pending approval' }, { status: 403 }) };
+  }
+  if (!user.is_admin) {
+    return { ok: false, response: NextResponse.json({ error: 'Forbidden' }, { status: 403 }) };
+  }
+  return { ok: true, user };
+}

nextjs/src/lib/auth/password.ts

@@ -0,0 +1,11 @@
+import bcrypt from 'bcryptjs';
+
+const SALT_ROUNDS = 12;
+
+export function hashPassword(plain: string): string {
+  return bcrypt.hashSync(plain, SALT_ROUNDS);
+}
+
+export function verifyPassword(plain: string, passwordHash: string): boolean {
+  return bcrypt.compareSync(plain, passwordHash);
+}

nextjs/src/lib/auth/requireAdmin.ts

@@ -0,0 +1,22 @@
+import { redirect } from 'next/navigation';
+
+import { getSessionUser } from '@/lib/auth/session';
+
+export async function requireLogin(): Promise<NonNullable<Awaited<ReturnType<typeof getSessionUser>>>> {
+  const user = await getSessionUser();
+  if (!user) {
+    redirect('/admin/login');
+  }
+  if (!user.is_approved) {
+    redirect('/admin/pending');
+  }
+  return user;
+}
+
+export async function requireAdmin(): Promise<NonNullable<Awaited<ReturnType<typeof getSessionUser>>>> {
+  const user = await requireLogin();
+  if (!user.is_admin) {
+    redirect('/admin/no-access');
+  }
+  return user;
+}

nextjs/src/lib/auth/session.ts

@@ -0,0 +1,88 @@
+import { createHash, randomBytes } from 'crypto';
+import type { RowDataPacket } from 'mysql2';
+import { cookies } from 'next/headers';
+
+import { getPool } from '@/lib/db';
+
+export const SESSION_COOKIE = 'admin_session';
+const SESSION_MAX_AGE_SEC = 60 * 60 * 24 * 7; // 7 days
+
+export type AdminUserRow = {
+  id: number;
+  email: string;
+  password_hash: string;
+  is_approved: boolean;
+  is_admin: boolean;
+};
+
+function hashToken(token: string): string {
+  return createHash('sha256').update(token, 'utf8').digest('hex');
+}
+
+export async function createSession(userId: number): Promise<string> {
+  const token = randomBytes(32).toString('hex');
+  const tokenHash = hashToken(token);
+  const expiresAt = new Date(Date.now() + SESSION_MAX_AGE_SEC * 1000);
+
+  const pool = getPool();
+  await pool.query(
+    `INSERT INTO admin_sessions (user_id, token_hash, expires_at) VALUES (?, ?, ?)`,
+    [userId, tokenHash, expiresAt]
+  );
+
+  const cookieStore = await cookies();
+  cookieStore.set(SESSION_COOKIE, token, {
+    httpOnly: true,
+    secure: process.env.NODE_ENV === 'production',
+    sameSite: 'lax',
+    maxAge: SESSION_MAX_AGE_SEC,
+    path: '/',
+  });
+
+  return token;
+}
+
+export async function destroySession(): Promise<void> {
+  const cookieStore = await cookies();
+  const token = cookieStore.get(SESSION_COOKIE)?.value;
+  if (token) {
+    const pool = getPool();
+    await pool.query(
+      'DELETE FROM admin_sessions WHERE token_hash = ?',
+      [hashToken(token)]
+    );
+  }
+  cookieStore.delete(SESSION_COOKIE);
+}
+
+export async function getSessionUser(): Promise<AdminUserRow | null> {
+  const cookieStore = await cookies();
+  const token = cookieStore.get(SESSION_COOKIE)?.value;
+  if (!token) {
+    return null;
+  }
+
+  const tokenHash = hashToken(token);
+  const pool = getPool();
+  const [rows] = await pool.query<RowDataPacket[]>(
+    `SELECT u.id, u.email, u.password_hash, u.is_approved, u.is_admin
+     FROM admin_sessions s
+     JOIN admin_users u ON u.id = s.user_id
+     WHERE s.token_hash = ? AND s.expires_at > NOW()`,
+    [tokenHash]
+  );
+
+  if (rows.length === 0) {
+    cookieStore.delete(SESSION_COOKIE);
+    return null;
+  }
+
+  const row = rows[0] as Record<string, unknown>;
+  return {
+    id: row.id as number,
+    email: row.email as string,
+    password_hash: row.password_hash as string,
+    is_approved: Boolean(row.is_approved),
+    is_admin: Boolean(row.is_admin),
+  };
+}

nextjs/src/styles/admin.module.scss

@@ -0,0 +1,141 @@
+.wrap {
+  max-width: 960px;
+  margin: 0 auto;
+  padding: 24px 16px 48px;
+  font-family: system-ui, sans-serif;
+  color: #1a1a1a;
+}
+
+.card {
+  background: #fff;
+  border: 1px solid #e0e0e0;
+  border-radius: 8px;
+  padding: 20px;
+  margin-bottom: 20px;
+}
+
+.title {
+  margin: 0 0 8px;
+  font-size: 1.5rem;
+}
+
+.sub {
+  color: #666;
+  margin: 0 0 16px;
+  font-size: 0.95rem;
+}
+
+.form {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  max-width: 360px;
+}
+
+.label {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+  font-size: 0.9rem;
+}
+
+.input {
+  padding: 8px 10px;
+  border: 1px solid #ccc;
+  border-radius: 4px;
+  font-size: 1rem;
+}
+
+.textarea {
+  min-height: 100px;
+  font-family: inherit;
+}
+
+.btn {
+  padding: 10px 16px;
+  border: none;
+  border-radius: 4px;
+  background: #2563eb;
+  color: #fff;
+  font-size: 1rem;
+  cursor: pointer;
+  &:hover {
+    background: #1d4ed8;
+  }
+  &:disabled {
+    opacity: 0.6;
+    cursor: not-allowed;
+  }
+}
+
+.btnDanger {
+  background: #dc2626;
+  &:hover {
+    background: #b91c1c;
+  }
+}
+
+.btnGhost {
+  background: #f3f4f6;
+  color: #111;
+  &:hover {
+    background: #e5e7eb;
+  }
+}
+
+.error {
+  color: #b91c1c;
+  font-size: 0.9rem;
+}
+
+.success {
+  color: #15803d;
+  font-size: 0.9rem;
+}
+
+.nav {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 12px;
+  margin-bottom: 24px;
+  padding-bottom: 16px;
+  border-bottom: 1px solid #e5e7eb;
+}
+
+.nav a {
+  color: #2563eb;
+  text-decoration: none;
+  &:hover {
+    text-decoration: underline;
+  }
+}
+
+.table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 0.9rem;
+}
+
+.table th,
+.table td {
+  border: 1px solid #e5e7eb;
+  padding: 8px;
+  text-align: left;
+  vertical-align: top;
+}
+
+.table th {
+  background: #f9fafb;
+}
+
+.rowActions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
+
+.hr {
+  border: none;
+  border-top: 1px solid #e5e7eb;
+  margin: 16px 0;
+}

nextjs/src/styles/web.module.scss

@@ -460,6 +460,14 @@
   background-size: contain;
   background-repeat: none;
 }
+.evojapan2026 {
+  width: 500px;
+  height: 471px;
+  margin: auto;
+  background-image: url('https://static.catherine-fc.com/media/evo_logo_2026_shadow_drop.png');
+  background-size: contain;
+  background-repeat: none;
+}
 .evojapan2023kaisaikettei {
   width: 846px;
   height: 285px;