better logging for plugins + fix caps lock not working keylogger

Overlord-Server/src/server/plugin-runtime/worker-host.ts

@@ -111,6 +111,8 @@ self.onmessage = async (e: MessageEvent<WorkerInbound>) => {
       send({ type: "rpc_reply", id: msg.id, ok: true, result: result ?? null });
     } catch (err) {
       const error = err instanceof Error ? err.message : String(err);
+      const stack = err instanceof Error ? err.stack || "" : "";
+      console.error(`[plugin-worker] RPC ${msg.method} error: ${error}`, stack);
       send({ type: "rpc_reply", id: msg.id, ok: false, error });
     }
     return;

Overlord-Server/src/server/routes/plugin-routes.ts

@@ -953,6 +953,7 @@ export async function handlePluginRoutes(
       metrics.recordCommand("plugin_rpc");
       return Response.json({ ok: true, result });
     } catch (err) {
+      console.error(`[plugin:${pluginId}] RPC ${method} error:`, (err as Error).message, (err as Error).stack || "");
       return Response.json({ ok: false, error: (err as Error).message }, { status: 500 });
     }
   }