Web dashboard v2 step 3: dashboard restyle

Restyle every template under src/web/templates/dashboard/ plus the shared
partials _candidate_row.html, _signals_table.html and _pagination.html with
Tailwind utilities and the design system step 2 built, so the dashboard reads
as the sans-serif instrument-panel half of the same publication as the reader
pages: a page header on every page, stat tiles, compact tables with sticky
heads inside .scroll-x, tinted badges, one inline filter form per page,
settings groups with a sticky save bar, job cards, a scrolling journal block
and a rating widget that fits inside a table cell.

tailwind.css gains the dashboard vocabulary (.page-head/.page-desc/
.page-actions, .tiles/.tile*, .cell-wrap, .scroll-x.tall, .filters,
.pager/.tabs, .setting*/.save-bar, .disclosure, .sparklines/.spark-figure,
td .rating overrides, tr.superseded) plus a styled <meter> and a disabled
control state. Renames class="inline" to form-inline: Tailwind emits an
.inline display utility that was beating form.inline's layout.

Three small backend changes: job cards show the status and time of their last
run (attach_last_runs, no extra query, unit-tested); the Stats page passes
"stats" as its nav key so the admin nav no longer highlights Overview; and the
settings load-error banner drops its "! " prefix, with its assertion updated.

cargo test: 477 passed. npm run css:check clean.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NHyYupFdBiR4VfoUM7NjSM

src/web/templates/dashboard/job.html

@@ -1,6 +1,9 @@
 {% extends "layout.html" %}{% block content %}<section class="dashboard"{% if refresh %} data-refresh="5"{% endif %}>
-<h1><a href="/dashboard/jobs">Jobs</a> › Job {{ job.id }} · {{ job.name }} <span class="badge {{ job.status }}">{{ job.status }}</span></h1>
-{% if !description.is_empty() %}<p class="muted">{{ description }}</p>{% endif %}
+<header class="page-head"><div>
+<p class="page-eyebrow"><a class="text-muted no-underline hover:text-accent" href="/dashboard/jobs">Jobs</a> › Job {{ job.id }}</p>
+<h1 class="mt-1 flex flex-wrap items-center gap-x-3 gap-y-1"><span class="font-mono">{{ job.name }}</span> <span class="badge {{ job.status }}">{{ job.status }}</span></h1>
+{% if !description.is_empty() %}<p class="page-desc">{{ description }}</p>{% endif %}
+</div><div class="page-actions"><a class="btn" href="/dashboard/jobs">All jobs</a>{% if let Some(run_id) = job.run_id %}<a class="btn" href="/dashboard/runs/{{ run_id }}">Run {{ run_id }}</a>{% endif %}</div></header>
 <div class="cards">
 <section class="card"><h2>Job</h2>
 <dl class="kv">
@@ -12,7 +15,7 @@
 {% if let Some(message) = job.message %}<dt>Message</dt><dd class="message">{{ message }}</dd>{% endif %}
 {% if let Some(run_id) = job.run_id %}<dt>Run</dt><dd><a href="/dashboard/runs/{{ run_id }}">Run {{ run_id }}</a></dd>{% endif %}
 </dl>
-{% if refresh %}<p class="muted">This page reloads every 5 seconds while the job is requested or running.</p>{% endif %}
+{% if refresh %}<p class="muted text-xs">This page reloads every 5 seconds while the job is requested or running.</p>{% endif %}
 </section>
 <section class="card"><h2>Unit</h2>
 {% if let Some(status) = status %}<dl class="kv">
@@ -22,11 +25,11 @@
 {% if let Some(exited) = status.exited %}<dt>Main exited</dt><dd>{{ exited }}</dd>{% endif %}
 </dl>{% endif %}
 {% if let Some(error) = status_error %}<p class="error">Unit status unavailable: {{ error }}</p>{% endif %}
-<p class="muted">From <code>systemctl show {{ unit }}</code>.</p>
+<p class="muted text-xs">From <code>systemctl show {{ unit }}</code>.</p>
 </section>
 </div>
-<h2>Log</h2>
+<h2>Journal</h2>
 {% if let Some(error) = log_error %}<p class="error">Journal unavailable: {{ error }}</p>{% endif %}
-<p class="muted">Last {{ log_lines }} lines of <code>journalctl -u {{ unit }}</code>.</p>
+<p class="muted text-sm">Last {{ log_lines }} lines of <code>journalctl -u {{ unit }}</code>.</p>
 <pre class="preview journal">{{ log }}</pre>
 </section>{% endblock %}