Add Submit to Antigravity or Codex for Development modal with model picker and deep links

public/styles.css

@@ -1445,6 +1445,35 @@ body {
   width: min(680px, 95vw);
 }
 
+.modal-card-wide {
+  width: min(760px, 95vw);
+  max-height: 92vh;
+  display: flex;
+  flex-direction: column;
+}
+
+.modal-card-wide .modal-body {
+  overflow-y: auto;
+}
+
+.dev-target-pills {
+  display: flex;
+  gap: 0.45rem;
+  flex-wrap: wrap;
+}
+
+.dev-options-row {
+  display: flex;
+  gap: 0.65rem;
+  flex-wrap: wrap;
+}
+
+.dev-spec-textarea {
+  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
+  font-size: 0.78rem;
+  line-height: 1.45;
+}
+
 .modal-header {
   padding: 0.9rem 1.15rem;
   border-bottom: 1px solid var(--border-color);