feat(ui): markdown renderer (slice 11a, issue #440)

packages/desktop-electron/src/main/ipc.ts

@@ -414,8 +414,13 @@ export function registerIpcHandlers(deps: Deps) {
     })
   })
 
-  ipcMain.handle("show-item-in-folder", (_event: IpcMainInvokeEvent, path: string) => {
-    shell.showItemInFolder(path)
+  ipcMain.handle("show-item-in-folder", (_event: IpcMainInvokeEvent, target: string) => {
+    // shell.showItemInFolder needs an absolute path; relative resolves go
+    // through the renderer where the chat session knows its workspace cwd.
+    // process.cwd() in a packaged Electron main process is not the user's
+    // workspace (typically `/Users/<user>` on macOS), so absolutizing here
+    // would silently reveal the wrong file.
+    shell.showItemInFolder(target)
   })
 
   ipcMain.handle("stat-paths", async (_event: IpcMainInvokeEvent, paths: string[]) => {

packages/desktop-electron/src/main/markdown.ts

@@ -4,7 +4,16 @@ const renderer = new marked.Renderer()
 
 renderer.link = ({ href, title, text }: Tokens.Link) => {
   const titleAttr = title ? ` title="${title}"` : ""
-  return `<a href="${href}"${titleAttr} class="external-link" target="_blank" rel="noopener noreferrer">${text}</a>`
+  // The desktop renderer's document-level handler grabs every .external-link
+  // and routes it to shell.openExternal. Only mark true remote links so hash
+  // anchors and repo paths fall through to the markdown component's own
+  // click handler (scroll / Finder reveal). Keep this in sync with the
+  // jsParser branch in packages/ui/src/context/marked.tsx.
+  const remote = /^(?:https?:\/\/|mailto:)/i.test(href)
+  if (remote) {
+    return `<a href="${href}"${titleAttr} class="external-link" target="_blank" rel="noopener noreferrer">${text}</a>`
+  }
+  return `<a href="${href}"${titleAttr}>${text}</a>`
 }
 
 export function parseMarkdown(input: string) {

packages/ui/bunfig.toml

@@ -0,0 +1,2 @@
+[test]
+preload = ["./happydom.ts"]

packages/ui/happydom.ts

@@ -0,0 +1,3 @@
+import { GlobalRegistrator } from "@happy-dom/global-registrator"
+
+GlobalRegistrator.register()

packages/ui/package.json

@@ -30,6 +30,7 @@
     "generate:tailwind": "bun run script/tailwind.ts"
   },
   "devDependencies": {
+    "@happy-dom/global-registrator": "20.0.11",
     "@tailwindcss/vite": "catalog:",
     "@tsconfig/node22": "catalog:",
     "@types/bun": "catalog:",
@@ -55,7 +56,7 @@
     "@solidjs/meta": "catalog:",
     "@solidjs/router": "catalog:",
     "diff": "catalog:",
-    "dompurify": "3.3.1",
+    "dompurify": "3.4.2",
     "fuzzysort": "catalog:",
     "katex": "0.16.27",
     "luxon": "catalog:",