Fix bugs found in local testing

- Dashboard auto-refresh rendered the full layout into its own
  refresh container, producing a duplicate sidebar every 60s; it now
  renders only the body partial.
- 'Run Now' runs synchronously with a bounded timeout and returns
  refreshed results plus success/error feedback, instead of
  firing-and-forgetting with no signal.
- Price-history chart data moved from a <script> block to a data-
  attribute: templ does not interpolate expressions inside <script>
  element content, so the JSON was emitted literally.
- The htmx indicator spinner was permanently visible due to CSS
  source order; the indicator rules now follow .v-spinner.

Also refreshes README for this session's changes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

templates/results.templ

@@ -17,6 +17,10 @@ type ItemResultsData struct {
 	TotalPages       int
 	Order            string
 	HistoryChartJSON string
+	// RunMsg / RunError carry feedback from a "Run Now" poll. Both empty on a
+	// normal page load; PostRunItem sets exactly one.
+	RunMsg   string
+	RunError string
 }
 
 type BadgeData struct {
@@ -61,8 +65,17 @@ templ itemResultsBody(d ItemResultsData) {
 						<span class={ "v-badge", d.Badge.Class }>{ d.Badge.Label }</span>
 					</div>
 				}
-				<form class="mt-3" hx-post={ fmt.Sprintf("/items/%d/run", d.Item.ID) } hx-swap="none">
+				<form
+					class="mt-3 flex items-center gap-2 justify-end"
+					hx-post={ fmt.Sprintf("/items/%d/run", d.Item.ID) }
+					hx-target="#item-results-table"
+					hx-swap="outerHTML"
+					hx-disabled-elt="find button"
+				>
 					<input type="hidden" name="csrf_token" value={ d.CSRFToken }/>
+					<input type="hidden" name="from" value="results"/>
+					<span class="v-spinner htmx-indicator"></span>
+					<span class="v-muted text-sm htmx-indicator">Running...</span>
 					<button class="v-btn" type="submit">Run Now</button>
 				</form>
 			</div>
@@ -73,41 +86,30 @@ templ itemResultsBody(d ItemResultsData) {
 			if len(d.History) < 2 {
 				<div class="v-muted">Not enough history yet.</div>
 			} else {
-				<canvas id="price-chart" height="120"></canvas>
+				// Chart data rides on a data- attribute, not <script> content:
+				// templ interpolates (and escapes) attribute values but treats
+				// <script> bodies as raw text, leaving { expr } literal.
+				<canvas id="price-chart" height="120" data-chart={ d.HistoryChartJSON }></canvas>
 				<script src="/static/vendor/chart.umd.min.js"></script>
-				<script id="price-data" type="application/json">{ d.HistoryChartJSON }</script>
-				<script>
-				(function(){
-					var data = JSON.parse(document.getElementById('price-data').textContent);
-					var ctx = document.getElementById('price-chart').getContext('2d');
-					new Chart(ctx, {
-						type: 'line',
-						data: {
-							labels: data.labels,
-							datasets: [{
-								label: 'Best price',
-								data: data.points,
-								borderColor: '#00e4a4',
-								backgroundColor: 'rgba(0,228,164,0.15)',
-								pointBackgroundColor: '#e84040',
-								pointRadius: 3,
-								tension: 0.25,
-								fill: true
-							}]
-						},
-						options: {
-							scales: {
-								x: { ticks: { color: '#a8c0f0' }, grid: { color: 'rgba(255,255,255,0.07)' } },
-								y: { ticks: { color: '#a8c0f0' }, grid: { color: 'rgba(255,255,255,0.07)' } }
-							},
-							plugins: { legend: { labels: { color: '#ffffff' } } }
-						}
-					});
-				})();
-				</script>
+				<script src="/static/js/price-chart.js"></script>
 			}
 		</div>
 
+		@ItemResultsTable(d)
+	</div>
+}
+
+// ItemResultsTable is the results listing + pagination, plus optional "Run
+// Now" feedback. It is both part of the initial page (via itemResultsBody)
+// and the standalone response to POST /items/{id}/run from the results page,
+// so the Run Now button targets #item-results-table with hx-swap="outerHTML".
+templ ItemResultsTable(d ItemResultsData) {
+	<div id="item-results-table">
+		if d.RunError != "" {
+			<div class="v-flash-error">{ d.RunError }</div>
+		} else if d.RunMsg != "" {
+			<div class="v-flash">{ d.RunMsg }</div>
+		}
 		<div class="v-card p-0 overflow-hidden">
 			<table class="v-table">
 				<thead>