fix: prevent debugger button from showing in scratchpad (#7381)

frontend/src/components/editor/output/MarimoTracebackOutput.tsx

@@ -27,6 +27,7 @@ import { Kbd } from "@/components/ui/kbd";
 import { Tooltip } from "@/components/ui/tooltip";
 import { getCellEditorView } from "@/core/cells/cells";
 import type { CellId } from "@/core/cells/ids";
+import { SCRATCH_CELL_ID } from "@/core/cells/ids";
 import { insertDebuggerAtLine } from "@/core/codemirror/editing/debugging";
 import { aiEnabledAtom } from "@/core/config/config";
 import { getRequestClient } from "@/core/network/requests";
@@ -58,6 +59,7 @@ const KEY = "item";
 export const MarimoTracebackOutput = ({
   onRefactorWithAI,
   traceback,
+  cellId,
 }: Props): JSX.Element => {
   const htmlTraceback = renderHTML({
     html: traceback,
@@ -71,12 +73,13 @@ export const MarimoTracebackOutput = ({
   // Get last traceback info
   const tracebackInfo = extractAllTracebackInfo(traceback)?.at(0);
 
-  // Don't show in wasm or static notebooks
+  // Don't show in wasm, static notebooks, or scratchpad
   const showDebugger =
     tracebackInfo &&
     tracebackInfo.kind === "cell" &&
     !isWasm() &&
-    !isStaticNotebook();
+    !isStaticNotebook() &&
+    cellId !== SCRATCH_CELL_ID;
 
   const showAIFix = onRefactorWithAI && aiEnabled && !isStaticNotebook();
 

frontend/src/components/scratchpad/scratchpad.tsx

@@ -208,7 +208,7 @@ export const ScratchPad: React.FC = () => {
       className="flex flex-col h-full overflow-hidden divide-y"
       id={HTMLCellId.create(cellId)}
     >
-      <p className="mx-2 my-2 text-muted-foreground text-sm">
+      <p className="p-2 text-muted-foreground text-sm">
         Use this scratchpad cell to experiment with code without restrictions on
         variable names. Scratchpad code is ephemeral: variables defined in the
         scratchpad aren't saved to notebook memory, and the code is not saved in