Merge pull request 'KAN-68: Add WYSIWYG ticket description editor' (#172) from feature/KAN-68-wysiwyg-description-editor into main

Reviewed-on: #172
2026-10-01 19:22:22 +00:00
parent 704fe5d241 d8e1659f4b
commit f7c3873c19
14 changed files with 1619 additions and 12 deletions
@@ -48,6 +48,11 @@
    "dependencies": {
        "@inertiajs/core": "2.3.18",
        "@inertiajs/vue3": "^2.3.7",
+        "@tiptap/core": "^3.31.3",
+        "@tiptap/markdown": "^3.31.3",
+        "@tiptap/pm": "^3.31.3",
+        "@tiptap/starter-kit": "^3.31.3",
+        "@tiptap/vue-3": "^3.31.3",
        "@vueuse/core": "^12.8.2",
        "class-variance-authority": "^0.7.1",
        "clsx": "^2.1.1",
@@ -221,6 +221,21 @@ importers:
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        version: 2.3.18(debug@4.4.3(supports-color@8.1.1))(supports-color@8.1.1)(vue@3.5.30(typescript@5.9.3))
+      '@tiptap/core':
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+        version: 3.31.3(@tiptap/pm@3.31.3)
+      '@tiptap/markdown':
+        specifier: ^3.31.3
+        version: 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+      '@tiptap/pm':
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+        version: 3.31.3
+      '@tiptap/starter-kit':
+        specifier: ^3.31.3
+        version: 3.31.3
+      '@tiptap/vue-3':
+        specifier: ^3.31.3
+        version: 3.31.3(@floating-ui/dom@1.7.6)(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)(vue@3.5.30(typescript@5.9.3))
      '@vueuse/core':
        specifier: ^12.8.2
        version: 12.8.2(typescript@5.9.3)
@@ -733,6 +748,160 @@ packages:
    peerDependencies:
      vue: ^2.7.0 || ^3.0.0

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+      '@tiptap/pm': 3.31.3
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+      '@tiptap/core': 3.31.3
+      '@tiptap/pm': 3.31.3
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+    peerDependencies:
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+      '@tiptap/pm': 3.31.3
+      vue: ^3.0.0
+
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    engines: {node: '>= 12.0.0'}

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+
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+    engines: {node: '>= 20'}
+    hasBin: true
+
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    engines: {node: '>= 0.8.0'}

+  orderedmap@2.1.1:
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+
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    engines: {node: '>= 0.4'}
@@ -2158,6 +2338,45 @@ packages:
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    hasBin: true

+  prosemirror-changeset@2.4.3:
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    engines: {node: '>=10'}
@@ -2211,6 +2430,9 @@ packages:
    engines: {node: ^20.19.0 || >=22.12.0}
    hasBin: true

+  rope-sequence@1.3.4:
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@@ -2514,6 +2736,9 @@ packages:
      typescript:
        optional: true

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@@ -2896,6 +3121,178 @@ snapshots:
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      vue: 3.5.30(typescript@5.9.3)

+  '@tiptap/core@3.31.3(@tiptap/pm@3.31.3)':
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+
+  '@tiptap/extension-blockquote@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)':
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+      '@tiptap/pm': 3.31.3
+
+  '@tiptap/extension-bold@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-bubble-menu@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)':
+    dependencies:
+      '@floating-ui/dom': 1.7.6
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+      '@tiptap/pm': 3.31.3
+    optional: true
+
+  '@tiptap/extension-bullet-list@3.31.3(@tiptap/extension-list@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/extension-list': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-code-block@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+      '@tiptap/pm': 3.31.3
+
+  '@tiptap/extension-code@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-document@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-dropcursor@3.31.3(@tiptap/extensions@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/extensions': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-floating-menu@3.31.3(@floating-ui/dom@1.7.6)(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)':
+    dependencies:
+      '@floating-ui/dom': 1.7.6
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+      '@tiptap/pm': 3.31.3
+    optional: true
+
+  '@tiptap/extension-gapcursor@3.31.3(@tiptap/extensions@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/extensions': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-hard-break@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-heading@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-horizontal-rule@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+      '@tiptap/pm': 3.31.3
+
+  '@tiptap/extension-italic@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-link@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+      '@tiptap/pm': 3.31.3
+      linkifyjs: 4.3.3
+
+  '@tiptap/extension-list-item@3.31.3(@tiptap/extension-list@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/extension-list': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-list-keymap@3.31.3(@tiptap/extension-list@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/extension-list': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-list@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+      '@tiptap/pm': 3.31.3
+
+  '@tiptap/extension-ordered-list@3.31.3(@tiptap/extension-list@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/extension-list': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-paragraph@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-strike@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-text@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+
+  '@tiptap/extension-underline@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+
+  '@tiptap/extensions@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+      '@tiptap/pm': 3.31.3
+
+  '@tiptap/markdown@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+      '@tiptap/pm': 3.31.3
+      marked: 17.0.6
+
+  '@tiptap/pm@3.31.3':
+    dependencies:
+      prosemirror-changeset: 2.4.3
+      prosemirror-commands: 1.7.2
+      prosemirror-dropcursor: 1.8.3
+      prosemirror-gapcursor: 1.4.1
+      prosemirror-history: 1.5.0
+      prosemirror-inputrules: 1.5.1
+      prosemirror-keymap: 1.2.3
+      prosemirror-model: 1.25.12
+      prosemirror-schema-list: 1.5.1
+      prosemirror-state: 1.4.4
+      prosemirror-tables: 1.8.5
+      prosemirror-transform: 1.12.1
+      prosemirror-view: 1.42.5
+
+  '@tiptap/starter-kit@3.31.3':
+    dependencies:
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+      '@tiptap/extension-blockquote': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+      '@tiptap/extension-bold': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))
+      '@tiptap/extension-bullet-list': 3.31.3(@tiptap/extension-list@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))
+      '@tiptap/extension-code': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))
+      '@tiptap/extension-code-block': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+      '@tiptap/extension-document': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))
+      '@tiptap/extension-dropcursor': 3.31.3(@tiptap/extensions@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))
+      '@tiptap/extension-gapcursor': 3.31.3(@tiptap/extensions@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))
+      '@tiptap/extension-hard-break': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))
+      '@tiptap/extension-heading': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))
+      '@tiptap/extension-horizontal-rule': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+      '@tiptap/extension-italic': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))
+      '@tiptap/extension-link': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+      '@tiptap/extension-list': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+      '@tiptap/extension-list-item': 3.31.3(@tiptap/extension-list@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))
+      '@tiptap/extension-list-keymap': 3.31.3(@tiptap/extension-list@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))
+      '@tiptap/extension-ordered-list': 3.31.3(@tiptap/extension-list@3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3))
+      '@tiptap/extension-paragraph': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))
+      '@tiptap/extension-strike': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))
+      '@tiptap/extension-text': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))
+      '@tiptap/extension-underline': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))
+      '@tiptap/extensions': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+      '@tiptap/pm': 3.31.3
+
+  '@tiptap/vue-3@3.31.3(@floating-ui/dom@1.7.6)(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)(vue@3.5.30(typescript@5.9.3))':
+    dependencies:
+      '@floating-ui/dom': 1.7.6
+      '@tiptap/core': 3.31.3(@tiptap/pm@3.31.3)
+      '@tiptap/pm': 3.31.3
+      vue: 3.5.30(typescript@5.9.3)
+    optionalDependencies:
+      '@tiptap/extension-bubble-menu': 3.31.3(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+      '@tiptap/extension-floating-menu': 3.31.3(@floating-ui/dom@1.7.6)(@tiptap/core@3.31.3(@tiptap/pm@3.31.3))(@tiptap/pm@3.31.3)
+
  '@tybys/wasm-util@0.10.1':
    dependencies:
      tslib: 2.8.1
@@ -4179,6 +4576,8 @@ snapshots:
      lightningcss-win32-arm64-msvc: 1.33.0
      lightningcss-win32-x64-msvc: 1.33.0

+  linkifyjs@4.3.3: {}
+
  locate-path@6.0.0:
    dependencies:
      p-locate: 5.0.0
@@ -4197,6 +4596,8 @@ snapshots:
    dependencies:
      '@jridgewell/sourcemap-codec': 1.5.5

+  marked@17.0.6: {}
+
  math-intrinsics@1.1.0: {}

  merge2@1.4.1: {}
@@ -4284,6 +4685,8 @@ snapshots:
      type-check: 0.4.0
      word-wrap: 1.2.5

+  orderedmap@2.1.1: {}
+
  own-keys@1.0.1:
    dependencies:
      get-intrinsic: 1.3.0
@@ -4341,6 +4744,80 @@ snapshots:

  prettier@3.8.2: {}

+  prosemirror-changeset@2.4.3:
+    dependencies:
+      prosemirror-transform: 1.12.1
+
+  prosemirror-commands@1.7.2:
+    dependencies:
+      prosemirror-model: 1.25.12
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.12.1
+
+  prosemirror-dropcursor@1.8.3:
+    dependencies:
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.12.1
+      prosemirror-view: 1.42.5
+
+  prosemirror-gapcursor@1.4.1:
+    dependencies:
+      prosemirror-keymap: 1.2.3
+      prosemirror-model: 1.25.12
+      prosemirror-state: 1.4.4
+      prosemirror-view: 1.42.5
+
+  prosemirror-history@1.5.0:
+    dependencies:
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.12.1
+      prosemirror-view: 1.42.5
+      rope-sequence: 1.3.4
+
+  prosemirror-inputrules@1.5.1:
+    dependencies:
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.12.1
+
+  prosemirror-keymap@1.2.3:
+    dependencies:
+      prosemirror-state: 1.4.4
+      w3c-keyname: 2.2.8
+
+  prosemirror-model@1.25.12:
+    dependencies:
+      orderedmap: 2.1.1
+
+  prosemirror-schema-list@1.5.1:
+    dependencies:
+      prosemirror-model: 1.25.12
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.12.1
+
+  prosemirror-state@1.4.4:
+    dependencies:
+      prosemirror-model: 1.25.12
+      prosemirror-transform: 1.12.1
+      prosemirror-view: 1.42.5
+
+  prosemirror-tables@1.8.5:
+    dependencies:
+      prosemirror-keymap: 1.2.3
+      prosemirror-model: 1.25.12
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.12.1
+      prosemirror-view: 1.42.5
+
+  prosemirror-transform@1.12.1:
+    dependencies:
+      prosemirror-model: 1.25.12
+
+  prosemirror-view@1.42.5:
+    dependencies:
+      prosemirror-model: 1.25.12
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.12.1
+
  proxy-from-env@2.1.0: {}

  punycode@2.3.1: {}
@@ -4423,6 +4900,8 @@ snapshots:
      '@rolldown/binding-win32-arm64-msvc': 1.2.5
      '@rolldown/binding-win32-x64-msvc': 1.2.5

+  rope-sequence@1.3.4: {}
+
  run-parallel@1.2.0:
    dependencies:
      queue-microtask: 1.2.3
@@ -4768,6 +5247,8 @@ snapshots:
    optionalDependencies:
      typescript: 5.9.3

+  w3c-keyname@2.2.8: {}
+
  which-boxed-primitive@1.1.1:
    dependencies:
      is-bigint: 1.1.0
@@ -1,6 +1,7 @@
@import 'tailwindcss';
@import 'tw-animate-css';
@import './theme.css';
+@import './ticket-description.css';

@source '../../vendor/laravel/framework/src/Illuminate/Pagination/resources/views/*.blade.php';
@source '../../storage/framework/views/*.php';
@@ -0,0 +1,71 @@
+.ticket-description {
+    overflow-wrap: anywhere;
+    white-space: pre-wrap;
+    font-size: var(--text-sm);
+    line-height: 1.75;
+}
+.ticket-description > * + * {
+    margin-top: 0.75rem;
+}
+.ticket-description h1 {
+    font-size: 1.5rem;
+    font-weight: 700;
+}
+.ticket-description h2 {
+    font-size: 1.25rem;
+    font-weight: 700;
+}
+.ticket-description h3,
+.ticket-description h4,
+.ticket-description h5,
+.ticket-description h6 {
+    font-size: 1.125rem;
+    font-weight: 600;
+}
+.ticket-description ul {
+    list-style: disc;
+    padding-left: 1.5rem;
+}
+.ticket-description ol {
+    list-style: decimal;
+    padding-left: 1.5rem;
+}
+.ticket-description li > ul,
+.ticket-description li > ol {
+    margin-top: 0.25rem;
+}
+.ticket-description blockquote {
+    border-left: 3px solid var(--color-border);
+    padding-left: 1rem;
+    color: var(--color-muted-foreground);
+}
+.ticket-description a {
+    color: var(--color-primary);
+    text-decoration: underline;
+    text-underline-offset: 3px;
+}
+.ticket-description code {
+    border-radius: 0.25rem;
+    background: var(--color-muted);
+    padding: 0.125rem 0.25rem;
+    font-size: 0.875em;
+}
+.ticket-description pre {
+    max-width: 100%;
+    overflow-x: auto;
+    border-radius: 0.375rem;
+    background: var(--color-muted);
+    padding: 0.75rem;
+    white-space: pre;
+}
+.ticket-description pre code {
+    padding: 0;
+    background: none;
+}
+.ticket-description hr {
+    border-color: var(--color-border);
+    margin-block: 1rem;
+}
+.ticket-description:focus-visible {
+    outline: none;
+}
@@ -0,0 +1,33 @@
+<script setup lang="ts">
+import { computed, defineComponent, h } from 'vue';
+import {
+    parseDescription,
+    renderDescriptionNode,
+    supportsVisualDescription,
+} from '@/lib/ticket-description';
+
+const props = defineProps<{ description: string }>();
+const document = computed(() =>
+    supportsVisualDescription(props.description)
+        ? parseDescription(props.description)
+        : null,
+);
+const Content = defineComponent(
+    () => () =>
+        document.value
+            ? h('div', { class: 'ticket-description' }, [
+                  renderDescriptionNode(document.value),
+              ])
+            : h(
+                  'p',
+                  {
+                      class: 'wrap-anywhere whitespace-pre-wrap text-sm leading-7',
+                  },
+                  props.description,
+              ),
+);
+</script>
+
+<template>
+    <Content />
+</template>
@@ -0,0 +1,386 @@
+<script setup lang="ts">
+import { EditorContent, useEditor } from '@tiptap/vue-3';
+import {
+    Bold,
+    Italic,
+    Strikethrough,
+    Heading1,
+    Heading2,
+    Heading3,
+    List,
+    ListOrdered,
+    Quote,
+    Code,
+    SquareCode,
+    Link,
+    Unlink,
+    Undo2,
+    Redo2,
+} from 'lucide-vue-next';
+import { computed, nextTick, ref, watch } from 'vue';
+import InputError from '@/components/InputError.vue';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import { useLocalization } from '@/composables/useLocalization';
+import {
+    descriptionExtensions,
+    parseDescription,
+    safeDescriptionLink,
+    supportsVisualDescription,
+} from '@/lib/ticket-description';
+import type {
+    DescriptionToolbarAction,
+    TicketDescriptionEditorProps,
+} from '@/types/ticket-description';
+
+const props = defineProps<TicketDescriptionEditorProps>();
+const model = defineModel<string>({ required: true });
+const { t } = useLocalization();
+const sourceMode = ref(!supportsVisualDescription(model.value));
+const supported = computed(() => supportsVisualDescription(model.value));
+const visual = computed(() => !sourceMode.value && supported.value);
+const linkOpen = ref(false);
+const linkUrl = ref('');
+const linkError = ref('');
+const linkInput = ref<InstanceType<typeof Input> | null>(null);
+let currentMarkdown = model.value;
+const editor = useEditor({
+    extensions: descriptionExtensions(),
+    content: supported.value ? parseDescription(model.value) : '',
+    editable: !props.disabled,
+    editorProps: {
+        attributes: {
+            id: props.id,
+            role: 'textbox',
+            'aria-multiline': 'true',
+            'aria-labelledby': `${props.id}-label`,
+            'aria-describedby': `${props.id}-hint ${props.id}-error`,
+            'aria-invalid': String(Boolean(props.error)),
+            'aria-disabled': String(Boolean(props.disabled)),
+            class: 'ticket-description min-h-48 px-3 py-3 outline-none',
+        },
+    },
+    onUpdate: ({ editor: instance }) => {
+        currentMarkdown = instance.isEmpty ? '' : instance.getMarkdown();
+        model.value = currentMarkdown;
+    },
+});
+
+watch(model, (value) => {
+    if (value === currentMarkdown) {
+        return;
+    }
+    currentMarkdown = value;
+    if (supportsVisualDescription(value)) {
+        editor.value?.commands.setContent(parseDescription(value), {
+            emitUpdate: false,
+        });
+    }
+});
+watch(
+    () => props.disabled,
+    (disabled) => {
+        editor.value?.setEditable(!disabled, false);
+        if (disabled) {
+            linkOpen.value = false;
+        }
+    },
+);
+watch([() => props.error, () => props.disabled], () => {
+    editor.value?.setOptions({
+        editorProps: {
+            attributes: {
+                ...editor.value.options.editorProps.attributes,
+                'aria-invalid': String(Boolean(props.error)),
+                'aria-disabled': String(Boolean(props.disabled)),
+            },
+        },
+    });
+});
+
+const actions: DescriptionToolbarAction[] = [
+    {
+        label: 'descriptionEditor.bold',
+        icon: Bold,
+        active: 'bold',
+        run: (c) => c.toggleBold(),
+    },
+    {
+        label: 'descriptionEditor.italic',
+        icon: Italic,
+        active: 'italic',
+        run: (c) => c.toggleItalic(),
+    },
+    {
+        label: 'descriptionEditor.strike',
+        icon: Strikethrough,
+        active: 'strike',
+        run: (c) => c.toggleStrike(),
+    },
+    {
+        label: 'descriptionEditor.heading1',
+        icon: Heading1,
+        active: 'heading',
+        attributes: { level: 1 },
+        run: (c) => c.toggleHeading({ level: 1 }),
+    },
+    {
+        label: 'descriptionEditor.heading2',
+        icon: Heading2,
+        active: 'heading',
+        attributes: { level: 2 },
+        run: (c) => c.toggleHeading({ level: 2 }),
+    },
+    {
+        label: 'descriptionEditor.heading3',
+        icon: Heading3,
+        active: 'heading',
+        attributes: { level: 3 },
+        run: (c) => c.toggleHeading({ level: 3 }),
+    },
+    {
+        label: 'descriptionEditor.bulletList',
+        icon: List,
+        active: 'bulletList',
+        run: (c) => c.toggleBulletList(),
+    },
+    {
+        label: 'descriptionEditor.orderedList',
+        icon: ListOrdered,
+        active: 'orderedList',
+        run: (c) => c.toggleOrderedList(),
+    },
+    {
+        label: 'descriptionEditor.quote',
+        icon: Quote,
+        active: 'blockquote',
+        run: (c) => c.toggleBlockquote(),
+    },
+    {
+        label: 'descriptionEditor.code',
+        icon: Code,
+        active: 'code',
+        run: (c) => c.toggleCode(),
+    },
+    {
+        label: 'descriptionEditor.codeBlock',
+        icon: SquareCode,
+        active: 'codeBlock',
+        run: (c) => c.toggleCodeBlock(),
+    },
+    { label: 'descriptionEditor.undo', icon: Undo2, run: (c) => c.undo() },
+    { label: 'descriptionEditor.redo', icon: Redo2, run: (c) => c.redo() },
+];
+function runAction(action: DescriptionToolbarAction): void {
+    if (editor.value && !props.disabled) {
+        action.run(editor.value.chain().focus()).run();
+    }
+}
+function switchMode(): void {
+    linkOpen.value = false;
+    sourceMode.value = !sourceMode.value;
+}
+async function editLink(): Promise<void> {
+    linkUrl.value = editor.value?.getAttributes('link').href ?? '';
+    linkError.value = '';
+    linkOpen.value = true;
+    await nextTick();
+    linkInput.value?.$el?.focus();
+}
+function saveLink(): void {
+    if (!editor.value || props.disabled) {
+        return;
+    }
+    const href = safeDescriptionLink(linkUrl.value.trim());
+    if (!href) {
+        linkError.value = t('descriptionEditor.invalidLink');
+        return;
+    }
+    const chain = editor.value.chain().focus().extendMarkRange('link');
+    if (editor.value.state.selection.empty && !editor.value.isActive('link')) {
+        chain
+            .insertContent({
+                type: 'text',
+                text: href,
+                marks: [{ type: 'link', attrs: { href } }],
+            })
+            .run();
+    } else {
+        chain.setLink({ href }).run();
+    }
+    linkOpen.value = false;
+}
+function closeLink(): void {
+    linkOpen.value = false;
+    editor.value?.commands.focus();
+}
+</script>
+
+<template>
+    <div class="grid min-w-0 gap-2">
+        <div class="flex flex-wrap items-center justify-between gap-2">
+            <Label
+                :id="`${id}-label`"
+                :for="id"
+                @click="visual && editor?.commands.focus()"
+                >{{ label }}</Label
+            >
+            <Button
+                type="button"
+                variant="ghost"
+                size="sm"
+                :disabled="disabled || (!supported && !visual)"
+                :aria-pressed="sourceMode"
+                @click="switchMode"
+            >
+                {{
+                    visual
+                        ? t('descriptionEditor.source')
+                        : t('descriptionEditor.visual')
+                }}
+            </Button>
+        </div>
+        <div
+            class="border-input bg-card focus-within:border-ring focus-within:ring-ring/35 shadow-xs min-w-0 overflow-hidden rounded-md border focus-within:ring-2"
+            :class="{ 'border-destructive': error, 'opacity-60': disabled }"
+        >
+            <div
+                v-if="visual"
+                role="group"
+                :aria-label="t('descriptionEditor.formatting')"
+                class="bg-muted/30 flex flex-wrap gap-1 border-b p-2"
+            >
+                <Button
+                    v-for="action in actions"
+                    :key="action.label"
+                    type="button"
+                    size="icon-sm"
+                    :variant="
+                        action.active &&
+                        editor?.isActive(action.active, action.attributes)
+                            ? 'secondary'
+                            : 'ghost'
+                    "
+                    :title="t(action.label)"
+                    :aria-label="t(action.label)"
+                    :aria-pressed="
+                        action.active
+                            ? Boolean(
+                                  editor?.isActive(
+                                      action.active,
+                                      action.attributes,
+                                  ),
+                              )
+                            : undefined
+                    "
+                    :disabled="
+                        disabled ||
+                        !editor ||
+                        !action.run(editor.can().chain()).run()
+                    "
+                    @mousedown.prevent
+                    @click="runAction(action)"
+                >
+                    <component
+                        :is="action.icon"
+                        class="size-4"
+                        aria-hidden="true"
+                    />
+                </Button>
+                <Button
+                    type="button"
+                    size="icon-sm"
+                    variant="ghost"
+                    :title="t('descriptionEditor.link')"
+                    :aria-label="t('descriptionEditor.link')"
+                    :aria-pressed="Boolean(editor?.isActive('link'))"
+                    :disabled="
+                        disabled ||
+                        !editor ||
+                        !editor.can().setLink({ href: 'https://example.com' })
+                    "
+                    @mousedown.prevent
+                    @click="editLink"
+                    ><Link class="size-4" aria-hidden="true"
+                /></Button>
+                <Button
+                    type="button"
+                    size="icon-sm"
+                    variant="ghost"
+                    :title="t('descriptionEditor.unlink')"
+                    :aria-label="t('descriptionEditor.unlink')"
+                    :disabled="disabled || !editor?.isActive('link')"
+                    @mousedown.prevent
+                    @click="
+                        editor
+                            ?.chain()
+                            .focus()
+                            .extendMarkRange('link')
+                            .unsetLink()
+                            .run()
+                    "
+                    ><Unlink class="size-4" aria-hidden="true"
+                /></Button>
+            </div>
+            <div
+                v-if="linkOpen && visual"
+                class="grid gap-2 border-b p-3"
+                @keydown.esc.prevent.stop="closeLink"
+            >
+                <Label :for="`${id}-link`">{{
+                    t('descriptionEditor.linkUrl')
+                }}</Label>
+                <Input
+                    :id="`${id}-link`"
+                    ref="linkInput"
+                    v-model="linkUrl"
+                    type="text"
+                    :disabled="disabled"
+                    :invalid="Boolean(linkError)"
+                    :aria-describedby="`${id}-link-error`"
+                    placeholder="https://"
+                    @keydown.enter.prevent.stop="saveLink"
+                />
+                <InputError :id="`${id}-link-error`" :message="linkError" />
+                <div class="flex gap-2">
+                    <Button
+                        type="button"
+                        size="sm"
+                        :disabled="disabled"
+                        @click="saveLink"
+                        >{{ t('descriptionEditor.applyLink') }}</Button
+                    >
+                    <Button
+                        type="button"
+                        size="sm"
+                        variant="ghost"
+                        @click="closeLink"
+                        >{{ t('common.cancel') }}</Button
+                    >
+                </div>
+            </div>
+            <EditorContent v-if="visual && editor" :editor="editor" />
+            <textarea
+                v-else
+                :id="id"
+                v-model="model"
+                :name="id"
+                :disabled="disabled"
+                :placeholder="placeholder"
+                :aria-labelledby="`${id}-label`"
+                :aria-describedby="`${id}-hint ${id}-error`"
+                :aria-invalid="Boolean(error)"
+                class="min-h-48 w-full resize-y bg-transparent px-3 py-3 font-mono text-sm outline-none"
+            />
+        </div>
+        <p :id="`${id}-hint`" class="text-muted-foreground text-xs">
+            {{
+                supported
+                    ? t('descriptionEditor.hint')
+                    : t('descriptionEditor.unsupported')
+            }}
+        </p>
+        <InputError :id="`${id}-error`" :message="error" />
+    </div>
+</template>
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { computed } from 'vue';
+import TicketDescriptionEditor from '@/components/tickets/TicketDescriptionEditor.vue';
 import TicketFormField from '@/components/tickets/TicketFormField.vue';
 import { useLocalization } from '@/composables/useLocalization';
 import { ticketStatusLabel } from '@/lib/tickets';
@@ -72,10 +73,9 @@ const statusOptions = computed(
            :placeholder="t('ticketForm.titlePlaceholder')"
            required
        />
-        <TicketFormField
+        <TicketDescriptionEditor
            id="description"
            v-model="description"
-            kind="textarea"
            :label="t('ticketDetail.description')"
            :error="errors.description"
            :disabled="disabled"
@@ -13,6 +13,7 @@ import {
    watch,
 } from 'vue';
 import ProjectTicketController from '@/actions/App/Http/Controllers/ProjectTicketController';
+import TicketDescription from '@/components/tickets/TicketDescription.vue';
 import InputError from '@/components/InputError.vue';
 import AcceptanceCriteriaChecklist from '@/components/tickets/AcceptanceCriteriaChecklist.vue';
 import FormFeedback from '@/components/FormFeedback.vue';
@@ -272,16 +273,12 @@ const submit = (): void => {
                    </h2></CardHeader
                >
                <CardContent>
-                    <p
-                        class="wrap-anywhere whitespace-pre-wrap text-sm leading-7"
-                        :class="{
-                            'text-muted-foreground': !ticket.description,
-                        }"
-                    >
-                        {{
-                            ticket.description ||
-                            t('ticketDetail.noDescription')
-                        }}
+                    <TicketDescription
+                        v-if="ticket.description"
+                        :description="ticket.description"
+                    />
+                    <p v-else class="text-muted-foreground text-sm leading-7">
+                        {{ t('ticketDetail.noDescription') }}
                    </p>
                </CardContent>
            </Card>
@@ -0,0 +1,129 @@
+import type { JSONContent } from '@tiptap/core';
+import { Markdown, MarkdownManager } from '@tiptap/markdown';
+import StarterKit from '@tiptap/starter-kit';
+import { h } from 'vue';
+import type { VNodeChild } from 'vue';
+
+export function safeDescriptionLink(value: unknown): string | null {
+    if (
+        typeof value !== 'string' ||
+        /[\s\\]/u.test(value) ||
+        [...value].some(
+            (character) =>
+                character.charCodeAt(0) < 32 || character.charCodeAt(0) === 127,
+        )
+    ) {
+        return null;
+    }
+    if (/^(https?:\/\/|mailto:)/i.test(value)) {
+        try {
+            const url = new URL(value);
+            return ['http:', 'https:', 'mailto:'].includes(url.protocol)
+                ? value
+                : null;
+        } catch {
+            return null;
+        }
+    }
+    return /^(\/(?!\/)|#)/.test(value) ? value : null;
+}
+
+export function descriptionExtensions() {
+    return [
+        StarterKit.configure({
+            underline: false,
+            trailingNode: false,
+            link: {
+                openOnClick: false,
+                autolink: false,
+                isAllowedUri: (url) => safeDescriptionLink(url) !== null,
+                HTMLAttributes: {
+                    rel: 'noopener noreferrer',
+                    target: '_blank',
+                },
+            },
+        }),
+        Markdown.configure({ markedOptions: { gfm: true, breaks: true } }),
+    ];
+}
+
+const markdown = new MarkdownManager({
+    extensions: descriptionExtensions(),
+    markedOptions: { gfm: true, breaks: true },
+});
+
+/** Unsupported Markdown stays editable verbatim instead of being silently discarded. */
+export function supportsVisualDescription(value: string): boolean {
+    let supported = true;
+    markdown.instance.walkTokens(markdown.instance.lexer(value), (token) => {
+        if (
+            ['html', 'table', 'image'].includes(token.type) ||
+            (token.type === 'list_item' && token.task) ||
+            (token.type === 'link' && !safeDescriptionLink(token.href))
+        ) {
+            supported = false;
+        }
+    });
+    return supported;
+}
+
+export function parseDescription(value: string): JSONContent {
+    return markdown.parse(value);
+}
+
+/** Build Vue nodes from an explicit schema; never insert user-provided HTML. */
+export function renderDescriptionNode(node: JSONContent): VNodeChild {
+    if (node.type === 'text') {
+        let content: VNodeChild = node.text ?? '';
+        for (const mark of node.marks ?? []) {
+            const tag = {
+                bold: 'strong',
+                italic: 'em',
+                strike: 's',
+                code: 'code',
+            }[mark.type];
+            if (tag) {
+                content = h(tag, {}, [content]);
+            } else if (mark.type === 'link') {
+                const href = safeDescriptionLink(mark.attrs?.href);
+                if (href) {
+                    content = h(
+                        'a',
+                        { href, target: '_blank', rel: 'noopener noreferrer' },
+                        [content],
+                    );
+                }
+            }
+        }
+        return content;
+    }
+    const children = (node.content ?? []).map(renderDescriptionNode);
+    switch (node.type) {
+        case 'doc':
+            return children;
+        case 'paragraph':
+            return h('p', {}, children);
+        case 'heading':
+            return h(
+                `h${Math.min(6, Math.max(1, Number(node.attrs?.level) || 1))}`,
+                {},
+                children,
+            );
+        case 'bulletList':
+            return h('ul', {}, children);
+        case 'orderedList':
+            return h('ol', { start: Number(node.attrs?.start) || 1 }, children);
+        case 'listItem':
+            return h('li', {}, children);
+        case 'blockquote':
+            return h('blockquote', {}, children);
+        case 'codeBlock':
+            return h('pre', {}, [h('code', {}, children)]);
+        case 'hardBreak':
+            return h('br');
+        case 'horizontalRule':
+            return h('hr');
+        default:
+            return children;
+    }
+}
@@ -1,4 +1,31 @@
 export const en = {
+    'descriptionEditor.bold': 'Bold',
+    'descriptionEditor.italic': 'Italic',
+    'descriptionEditor.strike': 'Strikethrough',
+    'descriptionEditor.heading1': 'Heading 1',
+    'descriptionEditor.heading2': 'Heading 2',
+    'descriptionEditor.heading3': 'Heading 3',
+    'descriptionEditor.bulletList': 'Bullet list',
+    'descriptionEditor.orderedList': 'Numbered list',
+    'descriptionEditor.quote': 'Quote',
+    'descriptionEditor.code': 'Inline code',
+    'descriptionEditor.codeBlock': 'Code block',
+    'descriptionEditor.undo': 'Undo',
+    'descriptionEditor.redo': 'Redo',
+    'descriptionEditor.link': 'Add or edit link',
+    'descriptionEditor.unlink': 'Remove link',
+    'descriptionEditor.linkUrl': 'Link address',
+    'descriptionEditor.applyLink': 'Apply link',
+    'descriptionEditor.invalidLink':
+        'Enter a valid https://, http://, mailto:, /path or #anchor address without spaces.',
+    'descriptionEditor.formatting': 'Description formatting',
+    'descriptionEditor.source': 'Markdown',
+    'descriptionEditor.visual': 'Visual editor',
+    'descriptionEditor.hint':
+        'Format your description using the toolbar or edit its Markdown source.',
+    'descriptionEditor.unsupported':
+        'This description contains formatting that requires Markdown editing. Its original content is preserved.',
+
    'nativeApp.title': 'App',
    'nativeApp.description': 'Manage the KanbanGit app on this device.',
    'nativeApp.workspace': 'Workspace',
@@ -0,0 +1,19 @@
+import type { ChainedCommands } from '@tiptap/core';
+import type { Component } from 'vue';
+import type { TranslationKey } from '@/types/localization';
+
+export type TicketDescriptionEditorProps = {
+    id: string;
+    label: string;
+    error?: string;
+    disabled?: boolean;
+    placeholder?: string;
+};
+
+export type DescriptionToolbarAction = {
+    label: TranslationKey;
+    icon: Component;
+    active?: string;
+    attributes?: Record<string, unknown>;
+    run: (chain: ChainedCommands) => ChainedCommands;
+};
@@ -0,0 +1,66 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Actions\ProjectTicketMetadata\InitializeProjectTicketMetadata;
+use App\Models\Project;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Inertia\Testing\AssertableInertia as Assert;
+use Symfony\Component\Process\Process;
+use Tests\TestCase;
+
+class TicketDescriptionTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_description_formatting_and_safe_rendering(): void
+    {
+        $process = new Process(['node', 'tests/Fixtures/ticket-description.mjs'], base_path());
+        $process->setTimeout(60);
+        $process->run();
+
+        $this->assertTrue($process->isSuccessful(), $process->getOutput().$process->getErrorOutput());
+        $this->assertStringContainsString('Ticket description checks passed.', $process->getOutput());
+    }
+
+    public function test_markdown_descriptions_can_be_created_read_updated_and_cleared(): void
+    {
+        $this->withoutVite();
+        $user = User::factory()->create();
+        $project = Project::factory()->create();
+        app(InitializeProjectTicketMetadata::class)->handle($project);
+        $this->syncProjectPermissions($project, $user, ['view', 'write']);
+        $description = "## Plan\n\n**Bold** and *italic*\n\n- First\n- [Second](https://example.test)\n\n```php\necho '<tag>';\n```";
+        $payload = [
+            'title' => 'Formatted description',
+            'description' => $description,
+            'ticket_type_id' => $project->ticketTypes()->where('is_parent', false)->firstOrFail()->id,
+            'ticket_priority_id' => $project->ticketPriorities()->firstOrFail()->id,
+            'ticket_status_id' => $project->ticketStatuses()->whereNull('board_column_id')->firstOrFail()->id,
+        ];
+
+        $this->actingAs($user)->post(route('projects.tickets.store', $project), $payload)
+            ->assertSessionHasNoErrors()->assertRedirect();
+        $ticket = $project->tickets()->sole();
+        $this->assertSame($description, $ticket->description);
+        $this->get(route('projects.tickets.show', [$project, $ticket]))
+            ->assertInertia(fn (Assert $page) => $page->where('ticket.description', $description));
+
+        $updated = "> Updated quote\n\n1. One\n2. Two\n\n`inline`";
+        $this->patch(route('projects.tickets.update', [$project, $ticket]), [
+            ...$payload, 'description' => $updated, 'is_blocked' => false,
+        ])->assertSessionHasNoErrors()->assertRedirect();
+        $this->assertSame($updated, $ticket->fresh()->description);
+
+        $this->patch(route('projects.tickets.update', [$project, $ticket]), [
+            ...$payload, 'description' => ['invalid'], 'is_blocked' => false,
+        ])->assertSessionHasErrors('description');
+        $this->assertSame($updated, $ticket->fresh()->description);
+
+        $this->patch(route('projects.tickets.update', [$project, $ticket]), [
+            ...$payload, 'description' => '', 'is_blocked' => false,
+        ])->assertSessionHasNoErrors()->assertRedirect();
+        $this->assertNull($ticket->fresh()->description);
+    }
+}
@@ -0,0 +1,208 @@
+import { createApp, h, nextTick, reactive, ref } from 'vue';
+import TicketDescriptionEditor from '../../resources/js/components/tickets/TicketDescriptionEditor.vue';
+import TicketDescription from '../../resources/js/components/tickets/TicketDescription.vue';
+import { createLocalization } from '../../resources/js/lib/localization';
+import '../../resources/css/app.css';
+
+const original = 'First line\nSecond line\n\n**Existing bold**';
+const state = reactive({
+    value: original,
+    disabled: false,
+    error: '',
+    result: 'Running browser checks…',
+    updates: 0,
+});
+const component = ref(null);
+const app = createApp({
+    render: () =>
+        h('main', { class: 'mx-auto max-w-3xl space-y-6 p-6' }, [
+            h(
+                'h1',
+                { class: 'text-xl font-semibold' },
+                'Ticket description editor',
+            ),
+            h('p', { id: 'test-result', role: 'status' }, state.result),
+            h(TicketDescriptionEditor, {
+                ref: component,
+                id: 'description',
+                label: 'Description',
+                modelValue: state.value,
+                disabled: state.disabled,
+                error: state.error,
+                'onUpdate:modelValue': (value) => {
+                    state.value = value;
+                    state.updates++;
+                },
+            }),
+            h('h2', { class: 'font-semibold' }, 'Saved description preview'),
+            h(TicketDescription, { description: state.value }),
+        ]),
+}).use(createLocalization());
+app.mount('#app');
+const tick = async () => {
+    await nextTick();
+    await new Promise((resolve) => requestAnimationFrame(resolve));
+};
+const assert = (condition, message) => {
+    if (!condition) {
+        throw new Error(message);
+    }
+};
+const button = (name) =>
+    [...document.querySelectorAll('button')].find(
+        (element) =>
+            element.getAttribute('aria-label') === name ||
+            element.textContent.trim() === name,
+    );
+const click = async (name) => {
+    const element = button(name);
+    assert(element && !element.disabled, `Button available: ${name}`);
+    element.click();
+    await tick();
+};
+try {
+    await tick();
+    const editor = component.value.$.setupState.editor;
+    assert(editor, 'Editor mounted');
+    assert(
+        state.value === original && state.updates === 0,
+        'Mount preserves exact source',
+    );
+    assert(
+        document
+            .querySelector('#description')
+            .getAttribute('contenteditable') === 'true',
+        'Visual textbox is editable',
+    );
+    assert(
+        editor.getText().includes('First line\nSecond line'),
+        'Legacy newlines retained',
+    );
+    state.value = 'Format this';
+    await tick();
+    editor.commands.selectAll();
+    for (const name of ['Bold', 'Italic', 'Strikethrough']) {
+        await click(name);
+        assert(
+            button(name).getAttribute('aria-pressed') === 'true',
+            `${name} active`,
+        );
+    }
+    assert(
+        state.value.includes('**') && state.value.includes('~~'),
+        'Formatting emits Markdown',
+    );
+    await click('Undo');
+    assert(!editor.isActive('strike'), 'Undo restores prior state');
+    await click('Redo');
+    assert(editor.isActive('strike'), 'Redo restores formatting');
+    await click('Markdown');
+    const source = document.querySelector('textarea#description');
+    assert(source.value === state.value, 'Source matches the editor output');
+    source.value = '## From source\n\n- One\n- Two';
+    source.dispatchEvent(new Event('input', { bubbles: true }));
+    await tick();
+    await click('Visual editor');
+    assert(
+        document.querySelector('#description h2')?.textContent ===
+            'From source',
+        'Source updates visual editor',
+    );
+    assert(
+        document.querySelectorAll('#description li').length === 2,
+        'Lists render after source switch',
+    );
+    for (const [name, selector] of [
+        ['Bullet list', 'ul li'],
+        ['Numbered list', 'ol li'],
+        ['Quote', 'blockquote'],
+        ['Inline code', 'code'],
+        ['Code block', 'pre code'],
+        ['Heading 2', 'h2'],
+        ['Heading 3', 'h3'],
+    ]) {
+        state.value = `Check ${name}`;
+        await tick();
+        editor.commands.selectAll();
+        await click(name);
+        assert(
+            document.querySelector(`#description ${selector}`),
+            `${name} renders`,
+        );
+    }
+    state.value = 'Link text';
+    await tick();
+    editor.commands.selectAll();
+    await click('Add or edit link');
+    assert(
+        document.activeElement.id === 'description-link',
+        'Link field receives focus',
+    );
+    const input = document.querySelector('#description-link');
+    input.value = 'javascript:alert(1)';
+    input.dispatchEvent(new Event('input', { bubbles: true }));
+    await tick();
+    await click('Apply link');
+    assert(
+        document
+            .querySelector('#description-link-error')
+            .textContent.includes('Enter a valid'),
+        'Unsafe link rejected',
+    );
+    input.value = 'https://example.test/docs';
+    input.dispatchEvent(new Event('input', { bubbles: true }));
+    await tick();
+    await click('Apply link');
+    assert(
+        state.value === '[Link text](https://example.test/docs)',
+        'Selection becomes a Markdown link',
+    );
+    await click('Remove link');
+    assert(state.value === 'Link text', 'Link can be removed');
+    state.disabled = true;
+    state.error = 'Description rejected.';
+    await tick();
+    assert(
+        document
+            .querySelector('#description')
+            .getAttribute('contenteditable') === 'false',
+        'Processing disables editing',
+    );
+    assert(
+        document.querySelector('#description').getAttribute('aria-invalid') ===
+            'true',
+        'Server error reflected on editor',
+    );
+    assert(
+        button('Bold').disabled && button('Markdown').disabled,
+        'Processing disables controls',
+    );
+    assert(state.value === 'Link text', 'Validation retains draft');
+    state.disabled = false;
+    state.error = '';
+    state.value = 'Reset draft';
+    await tick();
+    assert(editor.getText() === 'Reset draft', 'External reset syncs editor');
+    editor.commands.selectAll();
+    await click('Heading 1');
+    assert(state.value.startsWith('# '), 'Heading command saves Markdown');
+    editor.commands.clearContent();
+    await tick();
+    assert(state.value === '', 'Clearing editor saves an empty description');
+    state.value = '| A | B |\n| - | - |\n| a | b |';
+    await tick();
+    assert(
+        document.querySelector('textarea#description').value === state.value,
+        'Unsupported content retained as source',
+    );
+    assert(button('Visual editor').disabled, 'Lossy conversion is unavailable');
+    state.value =
+        '# Plan\n\nUse **bold** and *italic* formatting, lists and [links](https://example.test).\n\n- Create ticket\n- Save description\n\n> Keep existing descriptions readable.';
+    await tick();
+    state.result =
+        'Browser checks passed: formatting, undo/redo, source round-trip, links, errors, disabled state, reset, clearing and legacy content.';
+} catch (error) {
+    state.result = `FAILED: ${error.message}`;
+    console.error(error);
+}
+window.addEventListener('pagehide', () => app.unmount(), { once: true });
@@ -0,0 +1,184 @@
+import assert from 'node:assert/strict';
+import process from 'node:process';
+import { fileURLToPath } from 'node:url';
+import vue from '@vitejs/plugin-vue';
+import tailwind from '@tailwindcss/vite';
+import { createServer } from 'vite';
+import { createSSRApp, h } from 'vue';
+import { renderToString } from 'vue/server-renderer';
+
+const serve = process.argv.includes('--serve');
+const server = await createServer({
+    configFile: false,
+    plugins: [vue(), ...(serve ? [tailwind()] : [])],
+    resolve: {
+        alias: {
+            '@': fileURLToPath(new URL('../../resources/js', import.meta.url)),
+        },
+    },
+    server: serve
+        ? { host: '127.0.0.1', port: 4186, strictPort: true, hmr: false }
+        : { middlewareMode: true, hmr: false, watch: null },
+    appType: 'custom',
+});
+if (serve) {
+    server.middlewares.use(async (request, response) => {
+        response.setHeader('Content-Type', 'text/html');
+        response.end(
+            await server.transformIndexHtml(
+                request.url,
+                '<!doctype html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"></head><body><div id="app"></div><script type="module" src="/tests/Fixtures/ticket-description-browser.mjs"></script></body></html>',
+            ),
+        );
+    });
+    await server.listen();
+    console.log('Description fixture ready on port 4186');
+} else {
+    try {
+        const {
+            safeDescriptionLink,
+            supportsVisualDescription,
+            parseDescription,
+            renderDescriptionNode,
+        } = await server.ssrLoadModule(
+            '/resources/js/lib/ticket-description.ts',
+        );
+        const { default: Description } = await server.ssrLoadModule(
+            '/resources/js/components/tickets/TicketDescription.vue',
+        );
+        const { default: Editor } = await server.ssrLoadModule(
+            '/resources/js/components/tickets/TicketDescriptionEditor.vue',
+        );
+        const { createLocalization } = await server.ssrLoadModule(
+            '/resources/js/lib/localization.ts',
+        );
+        const render = (description) =>
+            renderToString(
+                createSSRApp({ render: () => h(Description, { description }) }),
+            );
+        const markdown =
+            '# Title\n\n**Bold** and *italic* and ~~strike~~\n\n- One\n  - Nested\n\n3. Third\n4. Fourth\n\n> Quote\n\n`inline`\n\n```js\n<tag>\n```\n\n[Link](https://example.test/path)\n\n---';
+        assert.equal(supportsVisualDescription(markdown), true);
+        const rendered = await render(markdown);
+        for (const snippet of [
+            '<h1>Title</h1>',
+            '<strong>Bold</strong>',
+            '<em>italic</em>',
+            '<s>strike</s>',
+            '<ul>',
+            'Nested',
+            '<ol start="3">',
+            '<blockquote>',
+            '<code>inline</code>',
+            '&lt;tag&gt;',
+            'rel="noopener noreferrer"',
+            '<hr>',
+        ]) {
+            assert.ok(
+                rendered.includes(snippet),
+                `Missing formatted output: ${snippet}`,
+            );
+        }
+        assert.match(await render('First\nSecond'), /First<br>Second/);
+        assert.match(
+            await render('München 🚀 & details'),
+            /München 🚀 &amp; details/,
+        );
+        assert.match(
+            await render('&lt;img src=x onerror=alert(1)&gt;'),
+            /&lt;img/,
+        );
+        for (const value of [
+            'https://example.test/a?b=1&c=2',
+            'http://example.test',
+            'mailto:test@example.test',
+            '/projects/1',
+            '#section',
+        ]) {
+            assert.equal(safeDescriptionLink(value), value);
+        }
+        for (const value of [
+            'javascript:alert(1)',
+            'JaVaScRiPt:alert(1)',
+            'data:text/html,test',
+            'vbscript:test',
+            '//evil.test',
+            '/\\evil.test',
+            '\u0000https://example.test',
+            'https://',
+            'https://exa mple.test',
+            'java\nscript:alert(1)',
+            null,
+        ]) {
+            assert.equal(safeDescriptionLink(value), null);
+        }
+        for (const value of [
+            '<script>alert(1)</script>',
+            '<img src=x onerror=alert(1)>',
+            '| A | B |\n| - | - |\n| a | b |',
+            '![Image](https://example.test/image.png)',
+            '- [x] Done',
+            '[unsafe](javascript:alert%281%29)',
+        ]) {
+            assert.equal(supportsVisualDescription(value), false, value);
+            const html = await render(value);
+            assert.doesNotMatch(html, /<script|<img|href="javascript:/);
+            assert.ok(
+                html.includes(
+                    value
+                        .replaceAll('&', '&amp;')
+                        .replaceAll('<', '&lt;')
+                        .replaceAll('>', '&gt;'),
+                ),
+                'Original source is retained',
+            );
+        }
+        const maliciousNode = {
+            type: 'paragraph',
+            content: [
+                {
+                    type: 'text',
+                    text: '<script>bad</script>',
+                    marks: [
+                        { type: 'link', attrs: { href: 'javascript:bad()' } },
+                    ],
+                },
+            ],
+        };
+        const safe = await renderToString(
+            createSSRApp({
+                render: () =>
+                    h('div', {}, [renderDescriptionNode(maliciousNode)]),
+            }),
+        );
+        assert.doesNotMatch(safe, /<script|<a/);
+        assert.match(safe, /&lt;script&gt;/);
+        assert.deepEqual(parseDescription(''), { type: 'doc', content: [] });
+        let updates = 0;
+        const initial = await renderToString(
+            createSSRApp({
+                render: () =>
+                    h(Editor, {
+                        id: 'description',
+                        label: 'Description',
+                        modelValue: markdown,
+                        error: 'Invalid description.',
+                        disabled: true,
+                        'onUpdate:modelValue': () => updates++,
+                    }),
+            }).use(createLocalization()),
+        );
+        assert.match(initial, /id="description"/);
+        assert.match(initial, /aria-invalid="true"/);
+        assert.match(initial, /id="description-error"/);
+        assert.match(initial, /disabled/);
+        assert.equal(
+            updates,
+            0,
+            'Mounting must not rewrite existing descriptions',
+        );
+        console.log('Ticket description checks passed.');
+    } finally {
+        await server.close();
+    }
+}