Wiki Phase 2: TipTap rich-text editor + inline image uploads

Replaces the raw-HTML textarea in the wiki editor with a TipTap (ProseMirror)
WYSIWYG editor.

- new RichTextEditor component: bold/italic/strike, H2/H3, bullet+ordered
  lists, blockquote, code block, divider, link, inline image, undo/redo
- generalized POST /admin/uploads (reuses the screenshot multer config) →
  { url }; the editor uploads inline images through it
- editor output still passes through the Phase 1 server-side sanitizer on
  save and DOMPurify on render
- lazy-loaded as its own chunk so the public bundle doesn't ship TipTap
  (public ~82kB gzip; editor chunk ~106kB gzip loaded only in admin)
- RTE styling added to theme.css (toolbar, active states, prose content)

Verified: uploads serve as images; H2/H3 + lists + link + inline image
round-trip through the WYSIWYG and render sanitized on the public page.

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

WIKI_UPGRADE.md

@@ -299,10 +299,15 @@ phase if preferred). Do not merge a phase that hasn't been verified.
   index is data-driven (categories + sections); article shows category breadcrumb;
   client builds and server boots with no errors.
 
-### Phase 2 — Authoring UX
+### Phase 2 — Authoring UX ✅
 - TipTap editor replaces the textarea; generalized `/admin/uploads`; inline images.
 - **Exit check**: create/edit a page with headings, a list, a link, and an inline
   image; verify it renders sanitized on the public page.
+- **Verified** (2026-06-27): `/admin/uploads` returns `{url}` and the file serves as
+  an image; a page authored with H2/H3, lists, a link, and an uploaded inline image
+  round-trips through the WYSIWYG and renders sanitized publicly (link `rel` forced,
+  `<script>` stripped); a toolbar edit (insert divider) saved and persisted. TipTap
+  is code-split into its own chunk (lazy-loaded), keeping it off the public bundle.
 
 ### Phase 3 — Connectivity
 - Internal `[[slug]]` links + red-link detection; `wiki_links` rebuild on save;

client/package-lock.json

@@ -8,6 +8,10 @@
       "name": "uomysticmoon-client",
       "version": "1.0.0",
       "dependencies": {
+        "@tiptap/extension-image": "^2.27.2",
+        "@tiptap/extension-link": "^2.27.2",
+        "@tiptap/react": "^2.27.2",
+        "@tiptap/starter-kit": "^2.27.2",
         "dompurify": "^3.4.11",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
@@ -741,6 +745,22 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
     },
+    "node_modules/@popperjs/core": {
+      "version": "2.11.8",
+      "resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.11.8.tgz",
+      "integrity": "sha512-P1st0aksCrn9sGZhp8GMYwBnQsbvAWsZAX44oXNNvLHGqAOcoVxmjZiohstwQ7SqKnbR47akdNi+uleWD8+g6A==",
+      "license": "MIT",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/popperjs"
+      }
+    },
+    "node_modules/@remirror/core-constants": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@remirror/core-constants/-/core-constants-3.0.0.tgz",
+      "integrity": "sha512-42aWfPrimMfDKDi4YegyS7x+/0tlzaqwPQCULLanv3DMIlu96KTJR0fM5isWX2UViOqlGnX6YFgqWepcX+XMNg==",
+      "license": "MIT"
+    },
     "node_modules/@remix-run/router": {
       "version": "1.23.3",
       "resolved": "https://registry.npmjs.org/@remix-run/router/-/router-1.23.3.tgz",
@@ -1146,6 +1166,421 @@
         "win32"
       ]
     },
+    "node_modules/@tiptap/core": {
+      "version": "2.27.2",
+      "resolved": "https://registry.npmjs.org/@tiptap/core/-/core-2.27.2.tgz",
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+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/ueberdosis"
+      },
+      "peerDependencies": {
+        "@tiptap/pm": "^2.7.0"
+      }
+    },
+    "node_modules/@tiptap/extension-blockquote": {
+      "version": "2.27.2",
+      "resolved": "https://registry.npmjs.org/@tiptap/extension-blockquote/-/extension-blockquote-2.27.2.tgz",
+      "integrity": "sha512-oIGZgiAeA4tG3YxbTDfrmENL4/CIwGuP3THtHsNhwRqwsl9SfMk58Ucopi2GXTQSdYXpRJ0ahE6nPqB5D6j/Zw==",
+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/ueberdosis"
+      },
+      "peerDependencies": {
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+      }
+    },
+    "node_modules/@tiptap/extension-bold": {
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+      "resolved": "https://registry.npmjs.org/@tiptap/extension-bold/-/extension-bold-2.27.2.tgz",
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+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/ueberdosis"
+      },
+      "peerDependencies": {
+        "@tiptap/core": "^2.7.0"
+      }
+    },
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+        "type": "github",
+        "url": "https://github.com/sponsors/ueberdosis"
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+        "url": "https://github.com/sponsors/ueberdosis"
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+      },
+      "peerDependencies": {
+        "prosemirror-model": "^1.22.1",
+        "prosemirror-state": "^1.4.2",
+        "prosemirror-view": "^1.33.8"
+      }
+    },
+    "node_modules/prosemirror-transform": {
+      "version": "1.12.0",
+      "resolved": "https://registry.npmjs.org/prosemirror-transform/-/prosemirror-transform-1.12.0.tgz",
+      "integrity": "sha512-GxboyN4AMIsoHNtz5uf2r2Ru551i5hWeCMD6E2Ib4Eogqoub0NflniaBPVQ4MrGE5yZ8JV9tUHg9qcZTTrcN4w==",
+      "license": "MIT",
+      "dependencies": {
+        "prosemirror-model": "^1.21.0"
+      }
+    },
+    "node_modules/prosemirror-view": {
+      "version": "1.41.9",
+      "resolved": "https://registry.npmjs.org/prosemirror-view/-/prosemirror-view-1.41.9.tgz",
+      "integrity": "sha512-clTunTX+eaLbr87L1V1QPheRlEQJyTlL3gXe9x3jQIk3rL0RVWxviDGz8tFaydwIVm+hKhYCyr+R/zBtWr9s6A==",
+      "license": "MIT",
+      "dependencies": {
+        "prosemirror-model": "^1.25.8",
+        "prosemirror-state": "^1.0.0",
+        "prosemirror-transform": "^1.1.0"
+      }
+    },
+    "node_modules/punycode.js": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/punycode.js/-/punycode.js-2.3.1.tgz",
+      "integrity": "sha512-uxFIHU0YlHYhDQtV4R9J6a52SLx28BCjT+4ieh7IGbgwVJWO+km431c4yRlREUAsAmt/uMjQUyQHNEPf0M39CA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/react": {
       "version": "18.3.1",
       "resolved": "https://registry.npmjs.org/react/-/react-18.3.1.tgz",
@@ -1647,6 +2420,12 @@
         "fsevents": "~2.3.2"
       }
     },
+    "node_modules/rope-sequence": {
+      "version": "1.3.4",
+      "resolved": "https://registry.npmjs.org/rope-sequence/-/rope-sequence-1.3.4.tgz",
+      "integrity": "sha512-UT5EDe2cu2E/6O4igUr5PSFs23nvvukicWHx6GnOPlHAiiYbzNuCRQCuiUdHJQcqKalLKlrYJnjY0ySGsXNQXQ==",
+      "license": "MIT"
+    },
     "node_modules/scheduler": {
       "version": "0.23.2",
       "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.23.2.tgz",
@@ -1676,6 +2455,21 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/tippy.js": {
+      "version": "6.3.7",
+      "resolved": "https://registry.npmjs.org/tippy.js/-/tippy.js-6.3.7.tgz",
+      "integrity": "sha512-E1d3oP2emgJ9dRQZdf3Kkn0qJgI6ZLpyS5z6ZkY1DF3kaQaBsGZsndEpHwx+eC+tYM41HaSNvNtLx8tU57FzTQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@popperjs/core": "^2.9.0"
+      }
+    },
+    "node_modules/uc.micro": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-2.1.0.tgz",
+      "integrity": "sha512-ARDJmphmdvUk6Glw7y9DQ2bFkKBHwQHLi2lsaH6PPmz/Ka9sFOBsBluozhDltWmnv9u/cF6Rt87znRTPV+yp/A==",
+      "license": "MIT"
+    },
     "node_modules/update-browserslist-db": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.2.3.tgz",
@@ -1707,6 +2501,15 @@
         "browserslist": ">= 4.21.0"
       }
     },
+    "node_modules/use-sync-external-store": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.6.0.tgz",
+      "integrity": "sha512-Pp6GSwGP/NrPIrxVFAIkOQeyw8lFenOHijQWkUTrDvrF4ALqylP2C/KCkeS9dpUM3KvYRQhna5vt7IL95+ZQ9w==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/vite": {
       "version": "5.4.21",
       "resolved": "https://registry.npmjs.org/vite/-/vite-5.4.21.tgz",
@@ -1767,6 +2570,12 @@
         }
       }
     },
+    "node_modules/w3c-keyname": {
+      "version": "2.2.8",
+      "resolved": "https://registry.npmjs.org/w3c-keyname/-/w3c-keyname-2.2.8.tgz",
+      "integrity": "sha512-dpojBhNsCNN7T82Tm7k26A6G9ML3NkhDsnw9n/eoxSRlVBB4CEtIQ/KTCLI2Fwf3ataSXRhYFkQi3SlnFwPvPQ==",
+      "license": "MIT"
+    },
     "node_modules/yallist": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",

client/package.json

@@ -9,6 +9,10 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "@tiptap/extension-image": "^2.27.2",
+    "@tiptap/extension-link": "^2.27.2",
+    "@tiptap/react": "^2.27.2",
+    "@tiptap/starter-kit": "^2.27.2",
     "dompurify": "^3.4.11",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",

client/src/api/client.js

@@ -70,6 +70,12 @@ export const api = {
       fd.append('image', file)
       return req('/admin/posts/upload', { method: 'POST', body: fd, raw: true })
     },
+    // Generalized upload for rich-text editors → { url }.
+    upload: (file) => {
+      const fd = new FormData()
+      fd.append('image', file)
+      return req('/admin/uploads', { method: 'POST', body: fd, raw: true })
+    },
     listWiki: (params = '') => req(`/admin/wiki${params}`),
     getWiki: (slug) => req(`/admin/wiki/${slug}`),
     createWiki: (data) => req('/admin/wiki', { method: 'POST', body: data }),

client/src/components/RichTextEditor.jsx

@@ -0,0 +1,128 @@
+import { useEffect, useRef, useState } from 'react'
+import { useEditor, EditorContent } from '@tiptap/react'
+import StarterKit from '@tiptap/starter-kit'
+import Link from '@tiptap/extension-link'
+import Image from '@tiptap/extension-image'
+import { api } from '../api/client.js'
+
+// Toolbar button.
+function Btn({ onClick, active, disabled, title, children }) {
+  return (
+    <button
+      type="button"
+      title={title}
+      onMouseDown={(e) => e.preventDefault()} // keep editor selection
+      onClick={onClick}
+      disabled={disabled}
+      className={`rte-btn${active ? ' is-active' : ''}`}
+    >
+      {children}
+    </button>
+  )
+}
+
+export default function RichTextEditor({ value, onChange }) {
+  const fileRef = useRef(null)
+  const [uploading, setUploading] = useState(false)
+
+  const editor = useEditor({
+    extensions: [
+      StarterKit.configure({ heading: { levels: [2, 3] } }),
+      Link.configure({ openOnClick: false, autolink: true }),
+      Image.configure({ inline: false }),
+    ],
+    content: value || '',
+    onUpdate: ({ editor }) => onChange(editor.getHTML()),
+  })
+
+  // Safety net: sync if the parent resets `value` externally (won't fire during
+  // normal typing because the parent value equals what the editor just emitted).
+  useEffect(() => {
+    if (!editor) return
+    if (value != null && value !== editor.getHTML()) {
+      editor.commands.setContent(value, false)
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [value, editor])
+
+  if (!editor) return null
+
+  function setLink() {
+    const prev = editor.getAttributes('link').href || ''
+    const url = window.prompt('Link URL (leave blank to remove)', prev)
+    if (url === null) return
+    if (url === '') return editor.chain().focus().extendMarkRange('link').unsetLink().run()
+    editor.chain().focus().extendMarkRange('link').setLink({ href: url }).run()
+  }
+
+  async function onPickImage(e) {
+    const file = e.target.files?.[0]
+    e.target.value = '' // allow re-selecting the same file
+    if (!file) return
+    setUploading(true)
+    try {
+      const { url } = await api.admin.upload(file)
+      editor.chain().focus().setImage({ src: url, alt: file.name }).run()
+    } catch (err) {
+      alert(err.message || 'Image upload failed.')
+    } finally {
+      setUploading(false)
+    }
+  }
+
+  return (
+    <div className="rte">
+      <div className="rte-toolbar">
+        <Btn title="Bold" active={editor.isActive('bold')} onClick={() => editor.chain().focus().toggleBold().run()}>
+          <b>B</b>
+        </Btn>
+        <Btn title="Italic" active={editor.isActive('italic')} onClick={() => editor.chain().focus().toggleItalic().run()}>
+          <i>I</i>
+        </Btn>
+        <Btn title="Strikethrough" active={editor.isActive('strike')} onClick={() => editor.chain().focus().toggleStrike().run()}>
+          <s>S</s>
+        </Btn>
+        <span className="rte-sep" />
+        <Btn title="Heading 2 (table of contents)" active={editor.isActive('heading', { level: 2 })} onClick={() => editor.chain().focus().toggleHeading({ level: 2 }).run()}>
+          H2
+        </Btn>
+        <Btn title="Heading 3" active={editor.isActive('heading', { level: 3 })} onClick={() => editor.chain().focus().toggleHeading({ level: 3 }).run()}>
+          H3
+        </Btn>
+        <span className="rte-sep" />
+        <Btn title="Bullet list" active={editor.isActive('bulletList')} onClick={() => editor.chain().focus().toggleBulletList().run()}>
+          • List
+        </Btn>
+        <Btn title="Numbered list" active={editor.isActive('orderedList')} onClick={() => editor.chain().focus().toggleOrderedList().run()}>
+          1. List
+        </Btn>
+        <Btn title="Quote" active={editor.isActive('blockquote')} onClick={() => editor.chain().focus().toggleBlockquote().run()}>
+          ❝
+        </Btn>
+        <Btn title="Code block" active={editor.isActive('codeBlock')} onClick={() => editor.chain().focus().toggleCodeBlock().run()}>
+          {'</>'}
+        </Btn>
+        <Btn title="Divider" onClick={() => editor.chain().focus().setHorizontalRule().run()}>
+          —
+        </Btn>
+        <span className="rte-sep" />
+        <Btn title="Link" active={editor.isActive('link')} onClick={setLink}>
+          🔗
+        </Btn>
+        <Btn title="Insert image" disabled={uploading} onClick={() => fileRef.current?.click()}>
+          {uploading ? '…' : '🖼'}
+        </Btn>
+        <span className="rte-sep" />
+        <Btn title="Undo" disabled={!editor.can().undo()} onClick={() => editor.chain().focus().undo().run()}>
+          ↶
+        </Btn>
+        <Btn title="Redo" disabled={!editor.can().redo()} onClick={() => editor.chain().focus().redo().run()}>
+          ↷
+        </Btn>
+      </div>
+
+      <EditorContent editor={editor} className="rte-content prose" />
+      <input ref={fileRef} type="file" accept="image/*" onChange={onPickImage} hidden />
+    </div>
+  )
+}

client/src/routes/admin/views/WikiEditor.jsx

@@ -1,7 +1,11 @@
-import { useEffect, useState } from 'react'
+import { lazy, Suspense, useEffect, useState } from 'react'
 import Modal from '../../../components/Modal.jsx'
 import { api } from '../../../api/client.js'
 
+// Admin-only and heavy (TipTap) — load as its own chunk so the public bundle
+// never pays for it.
+const RichTextEditor = lazy(() => import('../../../components/RichTextEditor.jsx'))
+
 export default function WikiEditor({ slug, onClose, onSaved }) {
   const isEdit = Boolean(slug)
   const [form, setForm] = useState({
@@ -170,10 +174,12 @@ export default function WikiEditor({ slug, onClose, onSaved }) {
               placeholder="One-line summary shown on the wiki home."
             />
           </label>
-          <label>
+          <div>
-            <span className="field-label">Body (HTML — use &lt;h2&gt; for the table of contents)</span>
+            <span className="field-label">Body (use Heading 2 for table-of-contents sections)</span>
-            <textarea value={form.body} onChange={set('body')} className="textarea" style={{ minHeight: 260 }} />
+            <Suspense fallback={<span className="spin" />}>
-          </label>
+              <RichTextEditor value={form.body} onChange={(html) => setForm((f) => ({ ...f, body: html }))} />
+            </Suspense>
+          </div>
         </div>
       )}
     </Modal>

client/src/styles/theme.css

@@ -312,6 +312,75 @@ button[disabled] {
   border: 1px solid var(--line);
 }
 
+/* ===== Rich text editor (TipTap) ===== */
+.rte {
+  border: 1px solid var(--line);
+  border-radius: 8px;
+  background: var(--bg);
+  overflow: hidden;
+}
+.rte:focus-within {
+  border-color: var(--accent);
+}
+.rte-toolbar {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 4px;
+  padding: 8px 10px;
+  border-bottom: 1px solid var(--line);
+  background: var(--panel-flat);
+}
+.rte-btn {
+  min-width: 30px;
+  height: 30px;
+  padding: 0 8px;
+  border: 1px solid transparent;
+  border-radius: 6px;
+  background: transparent;
+  color: var(--muted);
+  font-family: var(--sans);
+  font-size: 0.85rem;
+  line-height: 1;
+  cursor: pointer;
+  transition: background 0.12s, color 0.12s, border-color 0.12s;
+}
+.rte-btn:hover:not([disabled]) {
+  background: var(--blue);
+  color: var(--ink);
+}
+.rte-btn.is-active {
+  background: var(--blue);
+  border-color: var(--accent);
+  color: var(--accent-bright);
+}
+.rte-btn[disabled] {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+.rte-sep {
+  width: 1px;
+  align-self: stretch;
+  margin: 2px 4px;
+  background: var(--line);
+}
+.rte-content {
+  padding: 14px 16px;
+  max-height: 460px;
+  overflow-y: auto;
+}
+.rte-content .ProseMirror {
+  min-height: 220px;
+  outline: none;
+}
+.rte-content .ProseMirror p.is-editor-empty:first-child::before {
+  content: attr(data-placeholder);
+  float: left;
+  height: 0;
+  color: var(--dim);
+  pointer-events: none;
+}
+
 /* ===== Admin tables ===== */
 .adm-table {
   width: 100%;

server/src/router/v1/admin/admin.controller.js

@@ -160,6 +160,15 @@ async function uploadImage(req, res) {
   return res.status(201).json({ image_url: imageUrl })
 }
 
+// Generalized upload used by rich-text editors (wiki, etc.). Same multer config
+// as the screenshot upload; returns a neutral { url }.
+async function uploadFile(req, res) {
+  if (!req.file) return res.status(400).json({ message: 'No file uploaded' })
+  const url = `/uploads/${req.file.filename}`
+  await activity.log({ req, action: 'upload', detail: { url } })
+  return res.status(201).json({ url })
+}
+
 // ── Wiki pages ─────────────────────────────────────────────────────────
 async function listWiki(req, res) {
   try {
@@ -457,6 +466,7 @@ module.exports = {
   publishPost,
   deletePost,
   uploadImage,
+  uploadFile,
   listWiki,
   getWiki,
   createWiki,

server/src/router/v1/admin/admin.routes.js

@@ -54,6 +54,8 @@ adminRouter.post(
   ctrl.createPost,
 )
 adminRouter.post('/posts/upload', upload.single('image'), ctrl.uploadImage)
+// Generalized upload (rich-text editors). Same multer middleware; returns { url }.
+adminRouter.post('/uploads', upload.single('image'), ctrl.uploadFile)
 adminRouter.get('/posts/:id', param('id').isInt(), validate, ctrl.getPost)
 adminRouter.put('/posts/:id', param('id').isInt(), validate, ctrl.updatePost)
 adminRouter.patch(