Use registered tool list for update/remove shortcut resolution

`quarto update chrome-headless-shell` was treated as an extension name
because `resolveCompatibleArgs()` only recognized `tinytex` and `chromium`
as tool shortcuts. Replace hardcoded check with `installableTools()` so all
registered tools (including `chrome-headless-shell` and `verapdf`) are
recognized automatically.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: cderv

src/command/remove/cmd.ts

@@ -21,6 +21,7 @@ import {
   removeTool,
   selectTool,
 } from "../../tools/tools-console.ts";
+import { installableTools } from "../../tools/tools.ts";
 import { notebookContext } from "../../render/notebook/notebook-context.ts";
 import { signalCommandFailure } from "../utils.ts";
 
@@ -172,7 +173,7 @@ export const resolveCompatibleArgs = (
       return {
         action: "extension",
       };
-    } else if (extname === "tinytex" || extname === "chromium") {
+    } else if (installableTools().includes(extname)) {
       return {
         action: "tool",
         name: args[0],