fix(panel): 加错误边界与新版本 chunk 自动刷新，无 WebGL 时仪表盘降级为平面视图

panel/src/components/AppShell.tsx

@@ -1,5 +1,5 @@
 import { useEffect, useState } from "react";
-import { NavLink, Outlet } from "react-router-dom";
+import { NavLink, Outlet, useLocation } from "react-router-dom";
 import { Cat, Globe, Sun, Moon, LogOut } from "lucide-react";
 import { useTranslation } from "react-i18next";
 import * as SelectPrimitive from "@radix-ui/react-select";
@@ -9,6 +9,7 @@ import { visibleSections, type NavSection } from "@/lib/nav";
 import { Select, SelectContent, SelectItem } from "@/components/ui/select";
 import { useTheme } from "@/lib/theme";
 import { api } from "@/lib/api";
+import { ErrorBoundary } from "@/components/ErrorBoundary";
 
 function SectionGroup({ section, isFirst }: { section: NavSection; isFirst: boolean }) {
   const { t } = useTranslation("navigation");
@@ -138,6 +139,7 @@ function ThemeToggle() {
 
 export function AppShell() {
   const { isAdmin, isOwner } = useTier();
+  const { pathname } = useLocation();
   const { t, i18n } = useTranslation("navigation");
   // Sections are derived purely from is_admin and is_owner: User-Side always,
   // Admin-Side only for admins, Owner-Side only for the platform owner. Both
@@ -200,7 +202,11 @@ export function AppShell() {
         </header>
         <main className="flex flex-1 flex-col p-6">
           <div className="mx-auto flex w-full max-w-8xl flex-1 flex-col gap-6">
+            {/* A crash on one page leaves the navigation usable; moving to
+                another route clears it. */}
+            <ErrorBoundary resetKey={pathname}>
               <Outlet />
+            </ErrorBoundary>
           </div>
         </main>
       </div>

panel/src/components/ErrorBoundary.tsx

@@ -0,0 +1,147 @@
+import { Component, useState, type ErrorInfo, type ReactNode } from "react";
+import { AlertTriangle, Check, Copy, Home, RefreshCw, Sparkles } from "lucide-react";
+import { useTranslation } from "react-i18next";
+import { Button } from "@/components/ui/button";
+import { isChunkLoadError, reloadForNewDeploy } from "@/lib/chunk";
+import { cn } from "@/lib/utils";
+
+// ErrorBoundary keeps one broken render from unmounting the whole panel. The
+// root boundary (main.tsx) covers the providers and the shell; the one around
+// AppShell's Outlet keeps the navigation alive and resets on route change, so a
+// crash on one page never strands the user there.
+
+interface Props {
+  children: ReactNode;
+  /** Changing it clears a caught error (the Outlet passes the pathname). */
+  resetKey?: unknown;
+  /** Replaces the crash page, e.g. a flat fleet grid for the 3D card. */
+  fallback?: (error: unknown, reset: () => void) => ReactNode;
+  /** "screen" fills the viewport (root); "page" sits inside the shell. */
+  variant?: "screen" | "page";
+}
+
+interface State {
+  failed: boolean;
+  error: unknown;
+}
+
+export class ErrorBoundary extends Component<Props, State> {
+  state: State = { failed: false, error: null };
+
+  static getDerivedStateFromError(error: unknown): State {
+    return { failed: true, error };
+  }
+
+  componentDidCatch(error: unknown, info: ErrorInfo) {
+    console.error("felis panel: render failed", error, info.componentStack);
+    if (isChunkLoadError(error)) reloadForNewDeploy();
+  }
+
+  componentDidUpdate(prev: Props) {
+    if (this.state.failed && !Object.is(prev.resetKey, this.props.resetKey)) {
+      this.setState({ failed: false, error: null });
+    }
+  }
+
+  reset = () => this.setState({ failed: false, error: null });
+
+  render() {
+    if (!this.state.failed) return this.props.children;
+    if (this.props.fallback) return this.props.fallback(this.state.error, this.reset);
+    return <CrashPage error={this.state.error} onRetry={this.reset} screen={this.props.variant === "screen"} />;
+  }
+}
+
+function errorText(error: unknown): string {
+  if (error instanceof Error) return `${error.name}: ${error.message}`;
+  try {
+    return typeof error === "string" ? error : JSON.stringify(error);
+  } catch {
+    return String(error);
+  }
+}
+
+function CrashPage({ error, onRetry, screen }: { error: unknown; onRetry: () => void; screen: boolean }) {
+  const { t } = useTranslation("common");
+  const [copied, setCopied] = useState(false);
+  const updated = isChunkLoadError(error);
+  const detail = errorText(error);
+
+  async function copy() {
+    try {
+      await navigator.clipboard.writeText(`${detail}\n${window.location.href}`);
+      setCopied(true);
+      window.setTimeout(() => setCopied(false), 1500);
+    } catch {
+      // Clipboard denied: the text stays selectable in the details block.
+    }
+  }
+
+  return (
+    <div
+      role="alert"
+      className={cn(
+        "flex items-center justify-center px-4",
+        screen ? "min-h-screen bg-background text-foreground" : "flex-1 py-16",
+      )}
+    >
+      <div className="w-full max-w-md space-y-5 text-center">
+        <div
+          className={cn(
+            "mx-auto flex h-12 w-12 items-center justify-center rounded-full",
+            updated ? "bg-primary/10 text-primary" : "bg-destructive/10 text-destructive",
+          )}
+        >
+          {updated ? <Sparkles className="h-6 w-6" /> : <AlertTriangle className="h-6 w-6" />}
+        </div>
+        <div className="space-y-2">
+          <h1 className="text-lg font-semibold">{updated ? t("crash_updated_title") : t("crash_title")}</h1>
+          <p className="text-sm leading-relaxed text-muted-foreground">
+            {updated ? t("crash_updated_body") : t("crash_body")}
+          </p>
+        </div>
+        <div className="flex flex-wrap items-center justify-center gap-2">
+          <Button onClick={() => window.location.reload()} className="gap-1.5">
+            <RefreshCw className="h-4 w-4" />
+            {t("crash_reload")}
+          </Button>
+          {!updated && (
+            <Button variant="outline" onClick={onRetry}>
+              {t("try_again")}
+            </Button>
+          )}
+          {/* A plain anchor: the root boundary renders outside the router. */}
+          <Button variant="ghost" asChild className="gap-1.5">
+            <a href="/">
+              <Home className="h-4 w-4" />
+              {t("back_to_dashboard")}
+            </a>
+          </Button>
+        </div>
+        {!updated && (
+          <details className="group rounded-md border border-border/60 bg-muted/30 text-left text-xs">
+            <summary className="cursor-pointer select-none px-3 py-2 text-muted-foreground hover:text-foreground">
+              {t("crash_details")}
+            </summary>
+            <div className="flex items-start gap-2 border-t border-border/60 px-3 py-2">
+              <code className="min-w-0 flex-1 whitespace-pre-wrap break-all font-mono text-[11px] text-foreground">
+                {detail}
+              </code>
+              <Button
+                type="button"
+                variant="ghost"
+                size="icon"
+                className="h-7 w-7 shrink-0"
+                onClick={copy}
+                aria-label={t("crash_copy")}
+                title={t("crash_copy")}
+              >
+                {copied ? <Check className="h-3.5 w-3.5 text-emerald-500" /> : <Copy className="h-3.5 w-3.5" />}
+              </Button>
+            </div>
+          </details>
+        )}
+      </div>
+    </div>
+  );
+}

panel/src/components/FleetGrid.tsx

@@ -0,0 +1,67 @@
+import { Link } from "react-router-dom";
+import { Info } from "lucide-react";
+import { useTranslation } from "react-i18next";
+import { PHASE_KEY, phaseColor } from "@/components/PhaseBadge";
+import { cn } from "@/lib/utils";
+import type { Phase, ServerInfo } from "@/lib/types";
+
+// FleetGrid is the flat stand-in for VoxelFleet when WebGL is unavailable or the
+// 3D chunk failed: the same square layout and phase palette seen from above, so
+// the legend under the card still reads correctly. It lives outside the three.js
+// chunk so it renders even when that chunk cannot load.
+
+const TRANSIENT: ReadonlySet<Phase> = new Set<Phase>(["Starting", "Stopping"]);
+
+export type FleetGridReason = "webgl" | "error";
+
+export function FleetGrid({
+  servers,
+  reason,
+}: {
+  servers: Pick<ServerInfo, "name" | "displayName" | "phase">[];
+  reason: FleetGridReason;
+}) {
+  const { t } = useTranslation(["dashboard", "servers"]);
+  const cols = Math.max(1, Math.ceil(Math.sqrt(servers.length)));
+  const n = servers.length;
+  const tile = n <= 9 ? "3rem" : n <= 36 ? "1.75rem" : n <= 100 ? "1.25rem" : "0.875rem";
+
+  return (
+    <div className="absolute inset-0 flex flex-col items-center justify-center gap-4 overflow-auto p-4">
+      {servers.length === 0 ? (
+        <p className="text-xs text-muted-foreground">{t("dashboard:fleet_flat_empty")}</p>
+      ) : (
+        <div
+          className="grid gap-2"
+          style={{ gridTemplateColumns: `repeat(${cols}, ${tile})`, gridAutoRows: tile }}
+        >
+          {servers.map((s) => {
+            const color = phaseColor(s.phase);
+            const label = `${s.displayName || s.name} · ${t(PHASE_KEY[s.phase] ?? PHASE_KEY.Unknown)}`;
+            return (
+              <Link
+                key={s.name}
+                to={`/servers/${s.name}`}
+                title={label}
+                aria-label={label}
+                className={cn(
+                  "rounded-md ring-1 ring-inset ring-white/10 transition-transform hover:scale-110 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring",
+                  TRANSIENT.has(s.phase) && "animate-pulse",
+                )}
+                style={{
+                  backgroundColor: color,
+                  backgroundImage: "linear-gradient(145deg, rgb(255 255 255 / 0.28), rgb(0 0 0 / 0.18))",
+                  boxShadow: s.phase === "Running" ? `0 0 14px -2px ${color}` : undefined,
+                }}
+              />
+            );
+          })}
+        </div>
+      )}
+      <p className="flex max-w-xs items-center gap-1.5 text-center text-[11px] leading-snug text-muted-foreground">
+        <Info className="h-3.5 w-3.5 shrink-0" />
+        {reason === "webgl" ? t("dashboard:fleet_flat_webgl") : t("dashboard:fleet_flat_error")}
+      </p>
+    </div>
+  );
+}

panel/src/components/VoxelFleet.tsx

@@ -1,6 +1,8 @@
-import { useEffect, useRef } from "react";
+import { useEffect, useRef, useState } from "react";
 import * as THREE from "three";
 import { phaseColor } from "@/components/PhaseBadge";
+import { FleetGrid } from "@/components/FleetGrid";
+import { webglAvailable } from "@/lib/webgl";
 import type { ServerInfo } from "@/lib/types";
 
 // VoxelFleet renders the fleet as a grid of voxels, one per server, colored by
@@ -10,6 +12,8 @@ import type { ServerInfo } from "@/lib/types";
 //   • the render loop is paused while the tab is hidden (no background GPU burn);
 //   • everything is disposed on unmount (no context leak on route changes).
 // Raw three.js (not react-three-fiber) keeps the dependency/build surface minimal.
+// Without WebGL (acceleration off, some VMs and remote desktops) the renderer
+// cannot be created at all, so the card falls back to the flat FleetGrid.
 
 interface Props {
   servers: ServerInfo[];
@@ -18,7 +22,15 @@ interface Props {
 const STARTING = "Starting";
 
 export function VoxelFleet({ servers }: Props) {
+  const [flat, setFlat] = useState(() => !webglAvailable());
+  if (flat) return <FleetGrid servers={servers} reason="webgl" />;
+  return <VoxelScene servers={servers} onUnsupported={() => setFlat(true)} />;
+}
+
+function VoxelScene({ servers, onUnsupported }: Props & { onUnsupported: () => void }) {
   const mountRef = useRef<HTMLDivElement>(null);
+  const onUnsupportedRef = useRef(onUnsupported);
+  onUnsupportedRef.current = onUnsupported;
   // Latest servers without re-running the heavy setup effect on every poll.
   const serversRef = useRef(servers);
   serversRef.current = servers;
@@ -32,7 +44,16 @@ export function VoxelFleet({ servers }: Props) {
     camera.position.set(6, 5.5, 9);
     camera.lookAt(0, 0, 0);
 
-    const renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true });
+    // The probe can pass while the real context still fails (blocklisted GPU,
+    // context limit reached); three throws then, and the card goes flat.
+    let renderer: THREE.WebGLRenderer;
+    try {
+      renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true });
+    } catch (err) {
+      console.warn("felis panel: WebGL renderer unavailable, showing the flat fleet", err);
+      onUnsupportedRef.current();
+      return;
+    }
     renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
     renderer.domElement.style.position = "absolute";
     renderer.domElement.style.top = "0";

panel/src/i18n/resources/en-US/common.json

@@ -19,5 +19,12 @@
   "toggle_theme": "Toggle theme",
   "pagination_prev": "Previous",
   "pagination_next": "Next",
-  "pagination_of": "Page {{current}} of {{total}}"
+  "pagination_of": "Page {{current}} of {{total}}",
+  "crash_title": "This page hit an error",
+  "crash_body": "The panel ran into a problem rendering this page. Reloading usually fixes it; if it keeps happening, send the error details below to your admin.",
+  "crash_updated_title": "The panel was updated",
+  "crash_updated_body": "A new version of the panel was just released. Reload to open this page.",
+  "crash_reload": "Reload",
+  "crash_details": "Error details",
+  "crash_copy": "Copy error details"
 }

panel/src/i18n/resources/en-US/dashboard.json

@@ -44,5 +44,8 @@
   "legend_unknown": "Unknown",
   "welcome_title": "Welcome to Felis Lolicon",
   "welcome_desc": "You have logged into the User Dashboard. Go to 'My Servers' to view and claim nodes allocated to you, or manage their sleep, wake, and console logs.",
-  "go_to_servers_btn": "Manage My Servers"
+  "go_to_servers_btn": "Manage My Servers",
+  "fleet_flat_webgl": "WebGL is unavailable in this browser, so the fleet is shown flat.",
+  "fleet_flat_error": "The 3D view failed to load, so the fleet is shown flat.",
+  "fleet_flat_empty": "No servers yet"
 }

panel/src/i18n/resources/zh-CN/common.json

@@ -19,5 +19,12 @@
   "toggle_theme": "切换主题",
   "pagination_prev": "上一页",
   "pagination_next": "下一页",
-  "pagination_of": "第 {{current}} / {{total}} 页"
+  "pagination_of": "第 {{current}} / {{total}} 页",
+  "crash_title": "这个页面出错了",
+  "crash_body": "面板渲染这个页面时遇到了问题。重新加载通常就能恢复；如果反复出现，请把下面的错误信息发给管理员。",
+  "crash_updated_title": "面板已更新",
+  "crash_updated_body": "面板刚发布了新版本，这个页面需要重新加载才能打开。",
+  "crash_reload": "重新加载",
+  "crash_details": "错误信息",
+  "crash_copy": "复制错误信息"
 }

panel/src/i18n/resources/zh-CN/dashboard.json

@@ -44,5 +44,8 @@
   "legend_unknown": "未知状态",
   "welcome_title": "欢迎使用 Felis 编排平台",
   "welcome_desc": "您已成功登录用户控制台。您可以在「我的服务器」页面查看并认领分配给您的专属节点，或者对其进行休眠、启动和控制台日志监控。",
-  "go_to_servers_btn": "操作我的服务器"
+  "go_to_servers_btn": "操作我的服务器",
+  "fleet_flat_webgl": "浏览器未启用 WebGL，已切换为平面视图。",
+  "fleet_flat_error": "3D 视图加载失败，已切换为平面视图。",
+  "fleet_flat_empty": "还没有服务器"
 }

panel/src/lib/chunk.test.ts

@@ -0,0 +1,55 @@
+import { describe, it, expect } from "vitest";
+import { claimChunkReload, isChunkLoadError } from "./chunk";
+
+// After a deploy an old tab's lazy import 404s. The panel reloads once to pick up
+// the new chunks; these cases pin which errors count and that a second failure
+// inside the window surfaces instead of looping.
+
+function memory(): Pick<Storage, "getItem" | "setItem"> & { data: Map<string, string> } {
+  const data = new Map<string, string>();
+  return { data, getItem: (k) => data.get(k) ?? null, setItem: (k, v) => void data.set(k, v) };
+}
+
+describe("isChunkLoadError", () => {
+  it("recognizes each browser's wording", () => {
+    for (const msg of [
+      "Failed to fetch dynamically imported module: https://x/assets/VoxelFleet-abc.js",
+      "error loading dynamically imported module",
+      "Importing a module script failed.",
+      "Unable to preload CSS for /assets/index-abc.css",
+    ]) {
+      expect(isChunkLoadError(new TypeError(msg))).toBe(true);
+    }
+  });
+
+  it("leaves ordinary render errors alone", () => {
+    expect(isChunkLoadError(new TypeError("Cannot read properties of undefined (reading 'name')"))).toBe(false);
+    expect(isChunkLoadError(null)).toBe(false);
+  });
+});
+
+describe("claimChunkReload", () => {
+  it("allows the first reload and stamps it", () => {
+    const s = memory();
+    expect(claimChunkReload(s, 1_000_000)).toBe(true);
+    expect(s.data.size).toBe(1);
+  });
+
+  it("refuses a second reload inside the window", () => {
+    const s = memory();
+    claimChunkReload(s, 1_000_000);
+    expect(claimChunkReload(s, 1_010_000)).toBe(false);
+  });
+
+  it("allows another reload once the window has passed", () => {
+    const s = memory();
+    claimChunkReload(s, 1_000_000);
+    expect(claimChunkReload(s, 1_031_000)).toBe(true);
+  });
+
+  it("declines without storage, since nothing could stop a loop", () => {
+    expect(claimChunkReload(null, 1_000_000)).toBe(false);
+    const broken = { getItem: () => { throw new Error("denied"); }, setItem: () => {} };
+    expect(claimChunkReload(broken, 1_000_000)).toBe(false);
+  });
+});

panel/src/lib/chunk.ts

@@ -0,0 +1,66 @@
+import { lazy, type ComponentType } from "react";
+
+// A deploy replaces the hashed chunks, so a tab opened before it asks for files
+// that no longer exist (panel.go answers index.html and the dynamic import
+// fails). One full reload picks up the new index and its chunk names; the
+// sessionStorage stamp keeps a real outage from turning into a reload loop.
+
+const RELOAD_KEY = "felis:chunk-reload-at";
+const RELOAD_WINDOW_MS = 30_000;
+
+const CHUNK_ERROR =
+  /Failed to fetch dynamically imported module|error loading dynamically imported module|Importing a module script failed|Unable to preload CSS|ChunkLoadError/i;
+
+/** isChunkLoadError recognizes a failed lazy import in Chrome, Firefox and Safari. */
+export function isChunkLoadError(err: unknown): boolean {
+  const text = err instanceof Error ? `${err.name} ${err.message}` : String(err ?? "");
+  return CHUNK_ERROR.test(text);
+}
+
+type Stamp = Pick<Storage, "getItem" | "setItem">;
+
+/** claimChunkReload reports whether this tab may reload now and, if so, stamps
+ *  the attempt. Without usable storage there is no loop guard, so it declines. */
+export function claimChunkReload(storage: Stamp | null, now: number): boolean {
+  if (!storage) return false;
+  try {
+    const last = Number(storage.getItem(RELOAD_KEY) ?? 0);
+    if (Number.isFinite(last) && now - last < RELOAD_WINDOW_MS) return false;
+    storage.setItem(RELOAD_KEY, String(now));
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+/** reloadForNewDeploy reloads the page once per window; false means the caller
+ *  must surface the error instead. */
+export function reloadForNewDeploy(): boolean {
+  let storage: Stamp | null = null;
+  try {
+    storage = window.sessionStorage;
+  } catch {
+    // Storage blocked (privacy mode): no guard, no automatic reload.
+  }
+  if (!claimChunkReload(storage, Date.now())) return false;
+  window.location.reload();
+  return true;
+}
+
+/** lazyWithReload is React.lazy that reloads once when the chunk has gone. */
+export function lazyWithReload<T extends ComponentType<any>>(factory: () => Promise<{ default: T }>) {
+  return lazy(() =>
+    factory().catch((err: unknown) => {
+      if (isChunkLoadError(err) && reloadForNewDeploy()) return new Promise<{ default: T }>(() => {});
+      throw err;
+    }),
+  );
+}
+
+/** installPreloadReload covers Vite's own modulepreload/CSS preloads, which
+ *  fail through the vite:preloadError event instead of the import promise. */
+export function installPreloadReload(): void {
+  window.addEventListener("vite:preloadError", (event) => {
+    if (reloadForNewDeploy()) event.preventDefault();
+  });
+}

panel/src/lib/webgl.ts

@@ -0,0 +1,18 @@
+// webglAvailable probes once whether this browser can create a WebGL context
+// (hardware acceleration off, some VMs and remote desktops cannot). The probe
+// context is released right away so the fleet view still gets its own.
+
+let cached: boolean | undefined;
+
+export function webglAvailable(): boolean {
+  if (cached !== undefined) return cached;
+  try {
+    const canvas = document.createElement("canvas");
+    const gl = canvas.getContext("webgl2") ?? canvas.getContext("webgl");
+    gl?.getExtension("WEBGL_lose_context")?.loseContext();
+    cached = gl != null;
+  } catch {
+    cached = false;
+  }
+  return cached;
+}

panel/src/main.tsx

@@ -2,10 +2,16 @@ import React from "react";
 import ReactDOM from "react-dom/client";
 import "./i18n";
 import App from "./App";
+import { ErrorBoundary } from "./components/ErrorBoundary";
+import { installPreloadReload } from "./lib/chunk";
 import "./index.css";
 
+installPreloadReload();
+
 ReactDOM.createRoot(document.getElementById("root")!).render(
   <React.StrictMode>
+    <ErrorBoundary variant="screen">
       <App />
+    </ErrorBoundary>
   </React.StrictMode>,
 );

panel/src/pages/Dashboard.tsx

@@ -1,4 +1,4 @@
-import { lazy, Suspense, useMemo } from "react";
+import { Suspense, useMemo } from "react";
 import { Link } from "react-router-dom";
 import {
   Activity,
@@ -20,13 +20,19 @@ import { Button } from "@/components/ui/button";
 import { Loading, ErrorState } from "@/components/States";
 import { StatCard } from "@/components/StatCard";
 import { PageHeader } from "@/components/PageHeader";
+import { ErrorBoundary } from "@/components/ErrorBoundary";
+import { FleetGrid } from "@/components/FleetGrid";
 import { api } from "@/lib/api";
 import { useAsync, useConfig } from "@/lib/hooks";
+import { lazyWithReload } from "@/lib/chunk";
+import { webglAvailable } from "@/lib/webgl";
 import type { Phase, ServerInfo, WhitelistImage } from "@/lib/types";
 
 // three.js is heavy and only the Dashboard renders it — split it into its own
 // async chunk so the rest of the panel doesn't pay for it on first load.
-const VoxelFleet = lazy(() =>
+// A failed chunk reloads the tab once (new deploy); after that the card falls
+// back to the flat grid instead of taking the page down.
+const VoxelFleet = lazyWithReload(() =>
   import("@/components/VoxelFleet").then((m) => ({ default: m.VoxelFleet })),
 );
 
@@ -426,9 +432,15 @@ function FleetView({
           </CardHeader>
           <CardContent className="flex-1 flex flex-col p-0 justify-between">
             <div className="flex-1 min-h-[220px] w-full bg-gradient-to-b from-transparent to-primary/5 border-b relative">
+              <ErrorBoundary fallback={() => <FleetGrid servers={servers} reason="error" />}>
+                {webglAvailable() ? (
                   <Suspense fallback={<Loading label={t("loading_scene")} />}>
                     <VoxelFleet servers={servers} />
                   </Suspense>
+                ) : (
+                  <FleetGrid servers={servers} reason="webgl" />
+                )}
+              </ErrorBoundary>
             </div>
             {/* 状态图例说明 + 指标统计 */}
             <div className="p-4 space-y-3 text-xs bg-muted/10">