feat: refine workbench visuals and map controls

Unify the Agent history extension with the header acrylic surface, preserve the full conversation body, and consolidate shared control and status styling.

Restore map flow and SCADA controller behavior, remove obsolete rendering paths, and extend regression coverage. Button press coverage now releases outside the target so state assertions cannot accidentally toggle the control.

src/features/agent/components/agent-ui-envelope-renderer.tsx

@@ -2,6 +2,7 @@ import { Activity, BarChart3, Database, History, LineChart, MonitorCog } from "l
 import { AnimatePresence, MotionConfig, motion } from "motion/react";
 import type { ReactNode } from "react";
 import { cn } from "@/shared/ui/cn";
+import { StatusIcon } from "@/shared/ui/status";
 import { normalizeSafeChartData, parseChartSpec, type SafeChartData, type SafeChartSeries, type SafeChartSpec } from "../chart-data";
 import type { AgentUiResult } from "../types";
 import type { UIEnvelope } from "../ui-envelope";
@@ -282,7 +283,7 @@ function TrustedPanelShell({
   return (
     <div className="agent-panel-nested rounded-xl p-3">
       <div className="mb-3 flex items-center gap-2 text-sm font-semibold text-slate-950">
-        <span className="grid h-7 w-7 place-items-center rounded-lg bg-emerald-100 text-emerald-700">{icon}</span>
+        <StatusIcon tone="success" size="md">{icon}</StatusIcon>
         {title}
       </div>
       {children}