wizards: unlock '+' buttons when roster is empty

The 'no agents → button disabled' guard hard-locked the wizard
behind an already-populated roster, forcing users to detour to the
Agents page and come back. NoAgentsGate already handles the empty
state gracefully inside the wizard body; the button just needed to
open it. Applied to both ResearchList and LoopsList.

Follow-up (design in progress): let the wizard auto-provision a
team from the topic/loop itself so users never have to leave to
create agents.

frontend/src/components/dashboard/LoopsList.tsx

@@ -148,20 +148,17 @@ export function LoopsList({
         <button
           type="button"
           onClick={() => setWizardOpen(true)}
-          disabled={noAgents}
+          title="New loop"
-          title={noAgents ? "Add an agent to your roster first" : "New loop"}
           aria-label="New loop"
           style={{
             flex: "none",
             width: 34,
             height: 34,
             borderRadius: 9,
-            border: `1px dashed ${noAgents ? "rgba(255,255,255,.14)" : "rgba(255,111,97,.4)"}`,
+            border: "1px dashed rgba(255,111,97,.4)",
-            background: noAgents
+            background: "rgba(255,111,97,.06)",
-              ? "rgba(255,255,255,.02)"
+            color: "#ff6f61",
-              : "rgba(255,111,97,.06)",
+            cursor: "pointer",
-            color: noAgents ? "#5a5a62" : "#ff6f61",
-            cursor: noAgents ? "not-allowed" : "pointer",
             display: "inline-flex",
             alignItems: "center",
             justifyContent: "center",

frontend/src/components/dashboard/ResearchList.tsx

@@ -173,25 +173,17 @@ export function ResearchList({
         <button
           type="button"
           onClick={() => setWizardOpen(true)}
-          disabled={agents.length === 0}
+          title="New research topic"
-          title={
-            agents.length === 0
-              ? "Add an agent to your roster first"
-              : "New research topic"
-          }
           aria-label="New research topic"
           style={{
             flex: "none",
             width: 34,
             height: 34,
             borderRadius: 9,
-            border: `1px dashed ${agents.length === 0 ? "rgba(255,255,255,.14)" : "rgba(255,111,97,.4)"}`,
+            border: "1px dashed rgba(255,111,97,.4)",
-            background:
+            background: "rgba(255,111,97,.06)",
-              agents.length === 0
+            color: "#ff6f61",
-                ? "rgba(255,255,255,.02)"
+            cursor: "pointer",
-                : "rgba(255,111,97,.06)",
-            color: agents.length === 0 ? "#5a5a62" : "#ff6f61",
-            cursor: agents.length === 0 ? "not-allowed" : "pointer",
             display: "inline-flex",
             alignItems: "center",
             justifyContent: "center",