admin: never let an older plugin monitor refresh replace a newer one

The 3 second timer starts a refresh without waiting for the last one, so
two refreshes of the same tab can finish out of order and the older rows
then replace the newer. Number each refresh and skip the commit when a
later one has already landed. Requests slower than the timer still land,
since only a completed newer refresh supersedes an older one.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

weed/admin/view/app/plugin.templ

@@ -621,6 +621,8 @@ templ Plugin(page string, initialJob string, lane string) {
                 allJobs: [],
                 allActivities: [],
                 monitorRowsScope: null,
+                monitorRefreshSeq: 0,
+                monitorCommittedSeq: 0,
                 refreshError: '',
                 loadedJobType: '',
                 descriptor: null,
@@ -3102,6 +3104,7 @@ templ Plugin(page string, initialJob string, lane string) {
                 // cluster, so the job-type sub-tabs fetch their own server-side filtered window.
                 var scopedJobType = monitorJobTypeScope();
                 var sameScope = state.monitorRowsScope === scopedJobType;
+                var refreshSeq = ++state.monitorRefreshSeq;
 
                 // A failed request keeps its last rows; the rest still land and the failure is rethrown.
                 var failure = null;
@@ -3130,9 +3133,11 @@ templ Plugin(page string, initialJob string, lane string) {
                 } catch (e) {
                     schedulerStatus = null;
                 }
-                if (monitorJobTypeScope() !== scopedJobType) {
+                // Drop a refresh that a newer one already landed before, or that a tab change left behind.
+                if (refreshSeq < state.monitorCommittedSeq || monitorJobTypeScope() !== scopedJobType) {
                     return;
                 }
+                state.monitorCommittedSeq = refreshSeq;
 
                 state.allJobs = Array.isArray(allJobs) ? allJobs : [];
                 state.allActivities = Array.isArray(allActivities) ? allActivities : [];

weed/admin/view/app/plugin_templ.go

@@ -109,7 +109,7 @@ func Plugin(page string, initialJob string, lane string) templ.Component {
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 7, "<div class=\"plugin-section plugin-section-overview\"><div class=\"row mb-4\"><div class=\"col-md-3 mb-3\"><div class=\"card border-info h-100\"><div class=\"card-body text-center\"><div class=\"text-uppercase text-muted small mb-1\">Workers</div><h4 class=\"mb-0\" id=\"plugin-status-workers\">0</h4></div></div></div><div class=\"col-md-3 mb-3\"><div class=\"card border-warning h-100\"><div class=\"card-body text-center\"><div class=\"text-uppercase text-muted small mb-1\">Active Jobs</div><h4 class=\"mb-0\" id=\"plugin-status-active-jobs\">0</h4></div></div></div><div class=\"col-md-3 mb-3\"><div class=\"card border-success h-100\"><div class=\"card-body text-center\"><div class=\"text-uppercase text-muted small mb-1\">Activities (recent)</div><h4 class=\"mb-0\" id=\"plugin-status-activities\">0</h4></div></div></div><div class=\"col-md-3 mb-3\"><div class=\"card border-secondary h-100\"><div class=\"card-body text-center\"><div class=\"text-uppercase text-muted small mb-1\">Next scheduled check</div><h4 class=\"mb-0 plugin-scheduler-next-run\">-</h4><div class=\"text-muted small plugin-scheduler-next-run-meta\"></div></div></div></div></div><div class=\"row mb-4\"><div class=\"col-12\"><div class=\"card shadow-sm\"><div class=\"card-header\"><h5 class=\"mb-0\"><i class=\"bi bi-bar-chart me-2\"></i>Per Job Type Summary</h5></div><div class=\"card-body p-0\"><div class=\"table-responsive\"><table class=\"table table-sm table-hover mb-0\"><thead class=\"table-light\"><tr><th>Job Type</th><th>Active Jobs</th><th>Recent Activities</th></tr></thead> <tbody id=\"plugin-jobtype-summary-body\"><tr><td colspan=\"3\" class=\"text-muted text-center py-3\">Loading...</td></tr></tbody></table></div></div></div></div></div><div class=\"row mb-4\"><div class=\"col-12\"><div class=\"card shadow-sm\"><div class=\"card-header d-flex justify-content-between align-items-center flex-wrap gap-2\"><h5 class=\"mb-0\"><i class=\"bi bi-clock me-2\"></i>Scheduler State</h5><small class=\"text-muted\">Sequential scheduler with per-job runtime limits</small></div><div class=\"card-body p-0\"><div class=\"table-responsive\"><table class=\"table table-sm table-hover mb-0\"><thead class=\"table-light\"><tr><th>Job Type</th><th>Enabled</th><th>Detector</th><th>In Flight</th><th>Max Runtime</th><th>Exec Global</th><th>Exec/Worker</th><th>Executor Workers</th><th>Effective Exec</th><th>Last Run</th></tr></thead> <tbody id=\"plugin-scheduler-table-body\"><tr><td colspan=\"10\" class=\"text-muted text-center py-3\">Loading...</td></tr></tbody></table></div></div></div></div></div><div class=\"row mb-4\"><div class=\"col-12\"><div class=\"card shadow-sm\"><div class=\"card-header\"><h5 class=\"mb-0\"><i class=\"bi bi-people me-2\"></i>Workers</h5></div><div class=\"card-body p-0\"><div class=\"table-responsive\" style=\"max-height: 560px; overflow-y: auto;\"><table class=\"table table-sm table-hover mb-0\"><thead class=\"table-light sticky-top\"><tr><th>Worker</th><th>Address</th><th>Capabilities</th><th>Load</th></tr></thead> <tbody id=\"plugin-workers-table-body\"><tr><td colspan=\"4\" class=\"text-muted text-center py-3\">Loading...</td></tr></tbody></table></div></div></div></div></div></div><div class=\"plugin-section plugin-section-configuration\"><div class=\"row mb-4\"><div class=\"col-lg-8 mb-3\"><div class=\"card shadow-sm h-100\"><div class=\"card-header d-flex justify-content-between align-items-center\"><h5 class=\"mb-0\"><i class=\"bi bi-sliders me-2\"></i>Job Type Configuration</h5><small class=\"text-muted\" id=\"plugin-config-updated-at\">Not loaded</small></div><div class=\"card-body\"><div class=\"mb-3\"><div class=\"small text-muted\">Selected Job Type</div><div class=\"fw-semibold\" id=\"plugin-selected-job-type\">-</div></div><div class=\"mb-3\"><div class=\"d-flex justify-content-between align-items-center mb-2\"><h6 class=\"mb-0\">Descriptor</h6><button type=\"button\" class=\"btn btn-sm btn-outline-secondary\" id=\"plugin-refresh-schema-btn\"><i class=\"bi bi-cloud-download me-1\"></i>Refresh Schema</button></div><div class=\"alert alert-light border\" id=\"plugin-descriptor-summary\">Select a job type to load schema and config.</div></div><div class=\"mb-3\"><h6>Admin Config Form</h6><div id=\"plugin-admin-config-form\" class=\"plugin-form-root\"><div class=\"text-muted\">No admin form loaded.</div></div></div><div class=\"mb-3\"><h6>Worker Config Form</h6><div id=\"plugin-worker-config-form\" class=\"plugin-form-root\"><div class=\"text-muted\">No worker form loaded.</div></div></div><div class=\"d-flex flex-wrap gap-2\"><button type=\"button\" class=\"btn btn-primary\" id=\"plugin-save-config-btn\"><i class=\"bi bi-floppy me-1\"></i>Save Config</button> <button type=\"button\" class=\"btn btn-outline-primary\" id=\"plugin-trigger-detection-btn\"><i class=\"bi bi-search me-1\"></i>Run Detection</button> <button type=\"button\" class=\"btn btnLine truncated
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 7, "<div class=\"plugin-section plugin-section-overview\"><div class=\"row mb-4\"><div class=\"col-md-3 mb-3\"><div class=\"card border-info h-100\"><div class=\"card-body text-center\"><div class=\"text-uppercase text-muted small mb-1\">Workers</div><h4 class=\"mb-0\" id=\"plugin-status-workers\">0</h4></div></div></div><div class=\"col-md-3 mb-3\"><div class=\"card border-warning h-100\"><div class=\"card-body text-center\"><div class=\"text-uppercase text-muted small mb-1\">Active Jobs</div><h4 class=\"mb-0\" id=\"plugin-status-active-jobs\">0</h4></div></div></div><div class=\"col-md-3 mb-3\"><div class=\"card border-success h-100\"><div class=\"card-body text-center\"><div class=\"text-uppercase text-muted small mb-1\">Activities (recent)</div><h4 class=\"mb-0\" id=\"plugin-status-activities\">0</h4></div></div></div><div class=\"col-md-3 mb-3\"><div class=\"card border-secondary h-100\"><div class=\"card-body text-center\"><div class=\"text-uppercase text-muted small mb-1\">Next scheduled check</div><h4 class=\"mb-0 plugin-scheduler-next-run\">-</h4><div class=\"text-muted small plugin-scheduler-next-run-meta\"></div></div></div></div></div><div class=\"row mb-4\"><div class=\"col-12\"><div class=\"card shadow-sm\"><div class=\"card-header\"><h5 class=\"mb-0\"><i class=\"bi bi-bar-chart me-2\"></i>Per Job Type Summary</h5></div><div class=\"card-body p-0\"><div class=\"table-responsive\"><table class=\"table table-sm table-hover mb-0\"><thead class=\"table-light\"><tr><th>Job Type</th><th>Active Jobs</th><th>Recent Activities</th></tr></thead> <tbody id=\"plugin-jobtype-summary-body\"><tr><td colspan=\"3\" class=\"text-muted text-center py-3\">Loading...</td></tr></tbody></table></div></div></div></div></div><div class=\"row mb-4\"><div class=\"col-12\"><div class=\"card shadow-sm\"><div class=\"card-header d-flex justify-content-between align-items-center flex-wrap gap-2\"><h5 class=\"mb-0\"><i class=\"bi bi-clock me-2\"></i>Scheduler State</h5><small class=\"text-muted\">Sequential scheduler with per-job runtime limits</small></div><div class=\"card-body p-0\"><div class=\"table-responsive\"><table class=\"table table-sm table-hover mb-0\"><thead class=\"table-light\"><tr><th>Job Type</th><th>Enabled</th><th>Detector</th><th>In Flight</th><th>Max Runtime</th><th>Exec Global</th><th>Exec/Worker</th><th>Executor Workers</th><th>Effective Exec</th><th>Last Run</th></tr></thead> <tbody id=\"plugin-scheduler-table-body\"><tr><td colspan=\"10\" class=\"text-muted text-center py-3\">Loading...</td></tr></tbody></table></div></div></div></div></div><div class=\"row mb-4\"><div class=\"col-12\"><div class=\"card shadow-sm\"><div class=\"card-header\"><h5 class=\"mb-0\"><i class=\"bi bi-people me-2\"></i>Workers</h5></div><div class=\"card-body p-0\"><div class=\"table-responsive\" style=\"max-height: 560px; overflow-y: auto;\"><table class=\"table table-sm table-hover mb-0\"><thead class=\"table-light sticky-top\"><tr><th>Worker</th><th>Address</th><th>Capabilities</th><th>Load</th></tr></thead> <tbody id=\"plugin-workers-table-body\"><tr><td colspan=\"4\" class=\"text-muted text-center py-3\">Loading...</td></tr></tbody></table></div></div></div></div></div></div><div class=\"plugin-section plugin-section-configuration\"><div class=\"row mb-4\"><div class=\"col-lg-8 mb-3\"><div class=\"card shadow-sm h-100\"><div class=\"card-header d-flex justify-content-between align-items-center\"><h5 class=\"mb-0\"><i class=\"bi bi-sliders me-2\"></i>Job Type Configuration</h5><small class=\"text-muted\" id=\"plugin-config-updated-at\">Not loaded</small></div><div class=\"card-body\"><div class=\"mb-3\"><div class=\"small text-muted\">Selected Job Type</div><div class=\"fw-semibold\" id=\"plugin-selected-job-type\">-</div></div><div class=\"mb-3\"><div class=\"d-flex justify-content-between align-items-center mb-2\"><h6 class=\"mb-0\">Descriptor</h6><button type=\"button\" class=\"btn btn-sm btn-outline-secondary\" id=\"plugin-refresh-schema-btn\"><i class=\"bi bi-cloud-download me-1\"></i>Refresh Schema</button></div><div class=\"alert alert-light border\" id=\"plugin-descriptor-summary\">Select a job type to load schema and config.</div></div><div class=\"mb-3\"><h6>Admin Config Form</h6><div id=\"plugin-admin-config-form\" class=\"plugin-form-root\"><div class=\"text-muted\">No admin form loaded.</div></div></div><div class=\"mb-3\"><h6>Worker Config Form</h6><div id=\"plugin-worker-config-form\" class=\"plugin-form-root\"><div class=\"text-muted\">No worker form loaded.</div></div></div><div class=\"d-flex flex-wrap gap-2\"><button type=\"button\" class=\"btn btn-primary\" id=\"plugin-save-config-btn\"><i class=\"bi bi-floppy me-1\"></i>Save Config</button> <button type=\"button\" class=\"btn btn-outline-primary\" id=\"plugin-trigger-detection-btn\"><i class=\"bi bi-search me-1\"></i>Run Detection</button> <button type=\"button\" class=\"btn btnLine truncated
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}