Initial commit: UOMysticmoon backend (Express + MariaDB + JWT)

- Layered API (router -> controller -> model -> db), serverlinkr pattern
- Public / auth / admin route groups; posts, wiki, settings, users, activity models
- JWT httpOnly-cookie auth (Secure auto-detected: LAN HTTP + Pangolin HTTPS)
- Site LIVE/MAINTENANCE mode with admin preview bypass
- Dual file+console logging (info/warn/error/debug) + HTTP access logs
- Docker Compose (app + MariaDB), schema.sql + seed, .env.example
- Verified end-to-end against MariaDB (27/27 smoke checks)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

server/src/model/wiki/wiki.db.js

@@ -0,0 +1,46 @@
+const { query } = require('../../utils/db')
+
+async function listSummaries() {
+  return query('SELECT slug, title, updated_at FROM wiki_pages ORDER BY title ASC')
+}
+
+async function findBySlug(slug) {
+  const rows = await query('SELECT * FROM wiki_pages WHERE slug = ? LIMIT 1', [slug])
+  return rows[0] || null
+}
+
+async function insert({ slug, title, body, updatedBy = null }) {
+  const res = await query(
+    'INSERT INTO wiki_pages (slug, title, body, updated_by) VALUES (?, ?, ?, ?)',
+    [slug, title, body || null, updatedBy],
+  )
+  return res.insertId
+}
+
+async function updateBySlug(slug, { title, body, updatedBy = null }) {
+  await query(
+    'UPDATE wiki_pages SET title = ?, body = ?, updated_by = ? WHERE slug = ?',
+    [title, body || null, updatedBy, slug],
+  )
+}
+
+async function deleteBySlug(slug) {
+  return query('DELETE FROM wiki_pages WHERE slug = ?', [slug])
+}
+
+async function seedDefault(slug, title, body) {
+  await query('INSERT IGNORE INTO wiki_pages (slug, title, body) VALUES (?, ?, ?)', [
+    slug,
+    title,
+    body || null,
+  ])
+}
+
+module.exports = {
+  listSummaries,
+  findBySlug,
+  insert,
+  updateBySlug,
+  deleteBySlug,
+  seedDefault,
+}