Improve decoder setup UI and add configurable training timers

src/styles.css

@@ -872,6 +872,147 @@ body {
   gap: 10px;
 }
 
+.decoder-settings-form {
+  display: grid;
+  gap: 16px;
+}
+
+.decoder-layout-picker,
+.decoder-connection-card {
+  display: grid;
+  gap: 12px;
+  padding: 14px;
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  background: var(--surface-card);
+}
+
+.decoder-layout-picker .hint,
+.decoder-connection-card .hint,
+.decoder-role-header p {
+  margin: 4px 0 0;
+}
+
+.decoder-layout-options {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+  gap: 8px;
+}
+
+.decoder-layout-button {
+  min-height: 44px;
+  text-align: left;
+}
+
+.decoder-layout-button.is-active {
+  border-color: var(--accent-2);
+  background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 24%, var(--panel)), var(--panel-2));
+  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent-2) 35%, transparent);
+}
+
+.decoder-role-grid {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 12px;
+}
+
+.decoder-role-card {
+  display: grid;
+  align-content: start;
+  gap: 14px;
+  min-width: 0;
+  padding: 14px;
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  background: var(--surface-elevated);
+  transition: border-color 160ms ease, opacity 160ms ease;
+}
+
+.decoder-role-card-main {
+  border-color: color-mix(in srgb, var(--ok) 50%, var(--line));
+}
+
+.decoder-role-card.is-disabled {
+  border-style: dashed;
+}
+
+.decoder-role-card.is-disabled .decoder-role-body {
+  opacity: 0.52;
+}
+
+.decoder-role-header {
+  display: grid;
+  gap: 9px;
+}
+
+.decoder-role-header > div {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 8px;
+}
+
+.decoder-role-header p {
+  min-height: 2.5em;
+  color: var(--muted);
+  font-size: 0.84rem;
+  line-height: 1.4;
+}
+
+.decoder-role-badge {
+  padding: 3px 7px;
+  border: 1px solid var(--line);
+  border-radius: 999px;
+  color: var(--muted);
+  font-size: 0.7rem;
+  font-weight: 700;
+  letter-spacing: 0.04em;
+  text-transform: uppercase;
+}
+
+.decoder-role-badge.is-required {
+  border-color: color-mix(in srgb, var(--ok) 45%, var(--line));
+  color: var(--ok);
+}
+
+.decoder-role-toggle {
+  min-height: 38px;
+  padding: 8px 10px;
+  border: 1px solid var(--line);
+  border-radius: 9px;
+  background: var(--surface-soft);
+}
+
+.decoder-role-body,
+.decoder-role-body > label {
+  display: grid;
+  gap: 6px;
+}
+
+.decoder-pit-fields {
+  gap: 10px;
+}
+
+.decoder-connection-card {
+  grid-template-columns: minmax(180px, 0.8fr) minmax(260px, 1.2fr) minmax(170px, 0.55fr) auto;
+  align-items: end;
+}
+
+.decoder-connection-card > label {
+  display: grid;
+  gap: 6px;
+}
+
+.decoder-reconnect-toggle {
+  min-height: 40px;
+  align-self: end;
+}
+
+.decoder-settings-actions {
+  display: flex;
+  gap: 8px;
+}
+
 .settings-grid-toggles .toggle {
   min-height: 40px;
 }
@@ -2726,6 +2867,15 @@ select:focus {
   .training-focus-grid {
     grid-template-columns: 1fr;
   }
+
+  .decoder-role-grid,
+  .decoder-connection-card {
+    grid-template-columns: 1fr;
+  }
+
+  .decoder-role-header p {
+    min-height: 0;
+  }
 }
 
 @media (max-width: 820px) {
@@ -2753,6 +2903,14 @@ select:focus {
     grid-column: auto;
   }
 
+  .decoder-layout-options {
+    grid-template-columns: 1fr;
+  }
+
+  .decoder-settings-actions {
+    flex-direction: column;
+  }
+
   .dashboard-workflow-grid,
   .open-practice-quickstart-body,
   .open-practice-quickstart-form {