Add database integrity and disk usage jobs to Scheduled jobs

ROADMAP.md

@@ -234,3 +234,5 @@ Roughly in priority order:
 `v0.16.54` gives the Certificates table's Upstream column an accurate three-state color treatment instead of collapsing every non-numeric outcome into a single generic "no response." The underlying `upstreamHealth` data already distinguished four real states -- healthy (has a status code), unmonitored (monitoring intentionally turned off for that host), pending (no check has run yet), and a genuine failure (the check ran and errored or timed out) -- and the Hosted Site / Proxy host cards already labeled these correctly ("Monitoring paused", "Upstream check pending", etc.), but the new table only checked for a numeric status code and printed "no response" for everything else, including deliberately paused monitoring. The column now reads: green "running" dot with the status code for a healthy check, amber "idle" dot with "Monitoring paused" or "Check pending" for the two non-issue states, and a new red `.status-dot.bad` (added to styles.css, reusing the existing `--danger` token) with the actual error message for a real failure -- so a glance at the column now tells you whether something needs attention or is simply not being checked by design.
 
 `v0.16.55` is a batch covering three items reported against the Certificates and Logs pages. First, the "Configure thresholds" link on the Certificates page moves from floating level with the page title down onto the same line as the descriptive text beneath it, using a dedicated `.section-heading-row` flex row instead of the whole heading block being one flex row. Second, the three-state Upstream coloring added to the Certificates table in v0.16.54 (healthy / monitoring paused or check pending / genuine failure) is now applied consistently everywhere else that shows the same `upstreamHealth` data -- the Hosted Site, Proxy Host, and Streaming Host cards' upstream text now also gets a matching amber `.upstream-copy.idle` state for "Monitoring paused" and "Upstream/Target check pending", instead of rendering identically green to a real healthy check the way it did before. Third, the Logs page's "Gateway events" panel is converted from a stacked list of `.event-row` cards into a sticky-header table (`Time | Severity | Category | Message`), matching the Access requests table directly above it on the same page; the Message column is left free to wrap rather than forced onto one line, since event messages are free-form and of varying length, unlike the fixed-format columns elsewhere.
+
+`v0.16.56` adds the two background jobs from v0.16.45 and v0.16.48 (the SQLite integrity re-scan and the /data disk-usage walk, both moved off the request path and onto their own timers to fix the multi-second dashboard freezes reported at the time) to the Scheduled jobs list shown on the Dashboard and Administration -> System page. Both caches already tracked their own `checkedAt` timestamp internally, they just were never surfaced in the `jobs` array both pages already render from -- "Database integrity check" (every 30 minutes) and "Disk usage refresh" (every 60 seconds) now appear alongside Upstream checks, Scheduled backups, Log pruning, Access-log import, Public IP check, and Configuration drift check, with live last-run timestamps the same as every other entry in that list.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "site-gateway",
-  "version": "0.16.55",
+  "version": "0.16.56",
   "private": true,
   "description": "Site Gateway: simple self-hosted website publishing, reverse proxying, and automatic HTTPS.",
   "type": "module",

src/public/index.html

@@ -8,7 +8,7 @@
   <title>Site Gateway</title>
   <meta name="description" content="Host sites, proxy services, and manage HTTPS from one simple dashboard.">
   <link rel="icon" type="image/png" href="/site-gateway-icon-approved.png">
-  <link rel="stylesheet" href="/styles.css?v=0.16.55">
+  <link rel="stylesheet" href="/styles.css?v=0.16.56">
 </head>
 
 <!-- ================================================================
@@ -451,6 +451,6 @@
   <div id="toast" class="toast" role="status"></div>
   <div id="update-banner" class="update-banner hidden" role="status"><span>A new version of Site Gateway is available.</span><div class="update-banner-actions"><button id="update-banner-refresh" class="button primary">Refresh</button><button id="update-banner-dismiss" class="text-button">Dismiss</button></div></div>
   <!-- App scripts: core (app.js) then extended views/admin (features.js) -->
-  <script src="/app.js?v=0.16.55" defer></script><script src="/features.js?v=0.16.55" defer></script><script src="/select-enhance.js?v=0.16.55" defer></script>
+  <script src="/app.js?v=0.16.56" defer></script><script src="/features.js?v=0.16.56" defer></script><script src="/select-enhance.js?v=0.16.56" defer></script>
 </body>
 </html>

src/server.js

@@ -1185,6 +1185,8 @@ async function dashboardSnapshot(precomputedCertificates) {
         { name: "Access-log import", enabled: true, schedule: "30s", lastRunAt: lastAccessLogImportAt },
         { name: "Public IP check", enabled: true, schedule: "60m", lastRunAt: publicIpState.checkedAt || null },
         { name: "Configuration drift check", enabled: true, schedule: "10m", lastRunAt: configDrift.checkedAt || null },
+        { name: "Database integrity check", enabled: true, schedule: "30m", lastRunAt: databaseIntegrityCache.checkedAt || null },
+        { name: "Disk usage refresh", enabled: true, schedule: "60s", lastRunAt: dataDirSizeCache.checkedAt || null },
       ]
     },
     activity: recentActivity