Bundle analyzer, task run-now/toggle/weekly, error reporter, OG image, a11y

- Bundle analyzer: @next/bundle-analyzer wired through next.config.ts,
  new `bun run analyze` script (ANALYZE=true next build).
- Scheduled tasks gain:
  - enabled flag round-tripped via a #DISABLED prefix on the crontab line
    (preserves the mc-task marker + payload for re-enable).
  - PATCH /api/schedule/tasks to toggle enabled.
  - POST /api/schedule/tasks/run to execute a task immediately via
    the same buildCommand used for the cron line (60s timeout, kills
    child on client abort).
  - Weekly preset in the UI (day-of-week selector), broader aria-labels
    on all form selects. Human-readable cron renders "Tue at 04:30"
    and next-run calc accounts for weekly.
  - Hover-reveal Run now / Enable / Disable / Remove actions; disabled
    tasks render at 60% opacity with a "disabled" badge and no next-run.
- /api/errors: minimal append-only JSONL reporter (200ms throttle, UA
  and IP captured, fields length-bounded). Falls back to a stable
  path under /home/minecraft/logs/ and never fails the client on
  logging errors.
- ErrorReporter client (production-only) listens to window.error and
  unhandledrejection, fingerprint-dedups via a bounded in-memory set,
  sends with keepalive so unloads still flush.
- app/opengraph-image.tsx: 1200x630 dynamic PNG with live status dot
  (green/red), player count, address. 60s memo on the status probe.
- A11y: aria-labels on log-line count select, scheduled-restart hour
  and minute selects, copy-server-address button (plus focus-visible
  ring). ModManager selected-mod pill upgraded to role=button with a
  real accessible name and a proper × glyph.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/opengraph-image.tsx

@@ -0,0 +1,126 @@
+import { ImageResponse } from "next/og";
+import { probeStatus } from "@/lib/server-status";
+import { memoAsync } from "@/lib/cache";
+
+export const dynamic = "force-dynamic";
+export const size = { width: 1200, height: 630 };
+export const contentType = "image/png";
+export const alt = "HurkiCorgi MC — modded Minecraft server";
+
+export default async function OGImage() {
+  const status = await memoAsync("og-status", 60_000, async () => {
+    try {
+      return await probeStatus();
+    } catch {
+      return { online: false, players: { online: 0, max: 0 } };
+    }
+  });
+
+  const online = status.online;
+  const players = status.players;
+  const accent = online ? "#4ade80" : "#f87171";
+  const statusLabel = online ? "Online" : "Offline";
+
+  return new ImageResponse(
+    (
+      <div
+        style={{
+          width: "100%",
+          height: "100%",
+          display: "flex",
+          flexDirection: "column",
+          justifyContent: "space-between",
+          padding: 72,
+          background:
+            "linear-gradient(135deg, #0b0b18 0%, #1a1a2e 60%, #2a1f45 100%)",
+          color: "#f4f4f5",
+          fontFamily: "system-ui, -apple-system, Segoe UI, Roboto",
+        }}
+      >
+        <div style={{ display: "flex", alignItems: "center", gap: 24 }}>
+          <div
+            style={{
+              width: 20,
+              height: 20,
+              borderRadius: 999,
+              background: accent,
+              boxShadow: `0 0 28px ${accent}`,
+            }}
+          />
+          <span
+            style={{
+              fontSize: 28,
+              fontWeight: 700,
+              letterSpacing: "0.3em",
+              textTransform: "uppercase",
+              color: accent,
+            }}
+          >
+            {statusLabel}
+          </span>
+        </div>
+
+        <div style={{ display: "flex", flexDirection: "column", gap: 14 }}>
+          <div
+            style={{
+              fontSize: 108,
+              fontWeight: 800,
+              letterSpacing: "-0.04em",
+              lineHeight: 1,
+              display: "flex",
+            }}
+          >
+            HurkiCorgi MC
+          </div>
+          <div
+            style={{
+              fontSize: 38,
+              color: "#a1a1aa",
+              display: "flex",
+            }}
+          >
+            Create & Engineering · Raids · Survival
+          </div>
+        </div>
+
+        <div
+          style={{
+            display: "flex",
+            justifyContent: "space-between",
+            alignItems: "flex-end",
+            gap: 48,
+          }}
+        >
+          <div style={{ display: "flex", flexDirection: "column", gap: 4 }}>
+            <span style={{ fontSize: 22, color: "#71717a" }}>Address</span>
+            <span style={{ fontSize: 34, fontWeight: 600, fontFamily: "monospace" }}>
+              minecraft.hurkicorgi.com
+            </span>
+          </div>
+          <div
+            style={{
+              display: "flex",
+              flexDirection: "column",
+              alignItems: "flex-end",
+              gap: 4,
+            }}
+          >
+            <span style={{ fontSize: 22, color: "#71717a" }}>Players</span>
+            <span
+              style={{
+                fontSize: 64,
+                fontWeight: 800,
+                fontVariantNumeric: "tabular-nums",
+                color: online ? "#f4f4f5" : "#52525b",
+                display: "flex",
+              }}
+            >
+              {online ? `${players.online}/${players.max}` : "—"}
+            </span>
+          </div>
+        </div>
+      </div>
+    ),
+    { ...size }
+  );
+}