chore: v2.8.13 — Artifacts reinstall/edit/installs, agent steps in chat, pick a local file to attach, Windows paths as links

- Chat: an Agent step shows its task, status and tool calls and opens its conversation in place; Windows paths (E:\…, C:/…) in replies open as files
- Prompt: attach a file on this computer by path (native picker), clearer too-large messages
- Artifacts: edit title/description and a skill's files (new snapshot), Reinstall, install history, Hub-only rows, skills installed into ~/.claude/skills and ~/.agents/skills
- Files: batch upload of small files in one extract
- AI Tools: npm install falls back to --prefix ~/.local when the global prefix is not writable

client/src/components/run/ChatAddMenu.tsx

@@ -1,7 +1,10 @@
 /**
  * @file ChatAddMenu.tsx
  * @description The Chat view's `+` menu, Claude Desktop's: Upload or add
- * files (the prompt box's own picker), what is already there to attach —
+ * files (the prompt box's own picker), Choose a file on this computer (a
+ * browser on the dashboard's own machine only: the OS's own picker,
+ * `POST /api/lanes/pick-path`, attaches the file by its path — any size,
+ * nothing uploaded), what is already there to attach —
  * Project files (a search of the box's folder, folders too:
  * `GET /api/run/files?dirs=1`, sent as `@path`), the workspace's Context
  * files (`GET /api/lanes/:id/sources`) and Recent uploads (this browser's,
@@ -21,6 +24,7 @@ import {
   ChevronRight,
   FileText,
   FolderOpen,
+  HardDrive,
   History,
   Paperclip,
   Plug,
@@ -29,7 +33,14 @@ import {
   Settings2,
 } from "lucide-react";
 import { api } from "../../lib/api";
-import { projectAttachment, recentUploads, type Attachment } from "../../lib/promptAttach";
+import {
+  isLocalBrowser,
+  localAttachment,
+  projectAttachment,
+  recentUploads,
+  type Attachment,
+} from "../../lib/promptAttach";
+import { toast } from "../../lib/toast";
 
 interface Entry {
   name: string;
@@ -244,6 +255,17 @@ export function ChatAddMenu({
     close();
     onAttach([item]);
   };
+  const pickLocal = async () => {
+    close();
+    // The dialog opens on the desktop, sometimes behind this window.
+    toast.info(t("chat.pickLocalOpen"));
+    try {
+      const r = await api.lanes.pickPath("file", cwd || undefined);
+      if (r.path) onAttach([localAttachment(r.path)]);
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : String(err));
+    }
+  };
   const manage = (tab: "skills" | "plugins") => {
     close();
     navigate(`/cc-config?tab=${tab}`);
@@ -291,6 +313,16 @@ export function ChatAddMenu({
               onUpload();
             }}
           />
+          {isLocalBrowser() && (
+            <Row
+              icon={<HardDrive className="h-4 w-4" />}
+              label={t("chat.pickLocal")}
+              title={t("chat.pickLocalHint")}
+              testId="chat-add-pick-local"
+              onHover={() => setSub(null)}
+              onClick={() => void pickLocal()}
+            />
+          )}
           <Row
             icon={<FolderOpen className="h-4 w-4" />}
             label={t("chat.projectFiles")}