fix(desktop): restore the agent trading-card mint button (#5900)

## Problem

PR #5574's profile-panel redesign dropped `ProfileSummaryView`'s
`onCreateCard` prop — the only caller of `setCardMintTarget` — so the
entire Agent Trading Cards feature (#3278) became unreachable from the
GUI while staying fully wired underneath: mint dialog, background job
store, viewer, gallery, composer chip, and the Rust
`mint_agent_card`/`save_agent_card` commands all survive at main. `git
log -S 'setCardMintTarget('` shows exactly two commits: the feature and
the accidental removal.

## Outcome

The mint trigger returns as a management row in the agent profile's Info
tab, directly under **Export agent**, gated `isBot && canManagePersona`
exactly like Duplicate/Export. Target resolution is byte-for-byte the
original logic: prefer the live instance pubkey, fall back to the
persona/definition id, allow locking only when an instance keypair
exists.

## Shape

- `UserProfileAgentManagementRows`: new optional `onCreateCard` row
(Sparkles icon, `user-profile-create-card-row`), placed after Export.
- Prop threaded `UserProfilePanel` → `ProfileSummaryView` →
`ProfileInfoTabContent` → management rows, mirroring `onExportAgent` at
every layer.
- The mint-target state + open callback move into a `useCardMint` hook
in `UserProfilePersonaDialogs` (beside the `CardMintTarget` type it
manages). This keeps `UserProfilePanel.tsx` at 999 lines — the file sits
at the size-ratchet cap and may not grow.

## Validation

- `pnpm check` green (biome, file-size ratchet, px-text,
pubkey-truncation).
- `pnpm typecheck` green.
- Full desktop unit suite: **4888 passed, 0 failed**.
- Profile e2e spec: **32 passed**, including the updated
management-row-order assertion and a new click → mint-dialog-visible →
Escape → closed exercise of the restored row.

Verified at `bff3110a0aeb3d63683eac9ed3e587829f9436da`, one commit atop
main `01f76ec97`.

Signed-off-by: Eva <011987e296fd5006292d2f930b574be47c7801048d1983c46c425d3c95f0cffd@buzz.block.builderlab.xyz>
Co-authored-by: Eva <011987e296fd5006292d2f930b574be47c7801048d1983c46c425d3c95f0cffd@buzz.block.builderlab.xyz>

desktop/src/features/profile/ui/UserProfileAgentManagementRows.tsx

@@ -4,6 +4,7 @@ import {
   ArchiveRestore,
   CopyPlus,
   Download,
+  Sparkles,
   Trash2,
   type LucideIcon,
 } from "lucide-react";
@@ -30,6 +31,7 @@ export function UserProfileAgentManagementRows({
   canDeleteAgent,
   isDeletePending,
   managedAgent,
+  onCreateCard,
   onDeleteAgent,
   onDuplicateAgent,
   onExportAgent,
@@ -39,11 +41,14 @@ export function UserProfileAgentManagementRows({
   canDeleteAgent: boolean;
   isDeletePending: boolean;
   managedAgent?: ManagedAgent;
+  /** Mint an agent trading card. Present only for owner-managed personas. */
+  onCreateCard?: () => void;
   onDeleteAgent: () => void;
   onDuplicateAgent?: () => void;
   onExportAgent?: () => void;
 }) {
   if (
+    !onCreateCard &&
     !onDuplicateAgent &&
     !onExportAgent &&
     !canArchiveAgent &&
@@ -72,6 +77,15 @@ export function UserProfileAgentManagementRows({
           testId="user-profile-export-agent-row"
         />
       ) : null}
+      {onCreateCard ? (
+        <ProfileAgentActionRow
+          disabled={isDeletePending}
+          icon={Sparkles}
+          label="Create trading card"
+          onClick={onCreateCard}
+          testId="user-profile-create-card-row"
+        />
+      ) : null}
       {canArchiveAgent ? (
         <ProfileArchiveAgentRow archiveActions={archiveActions} />
       ) : null}

desktop/src/features/profile/ui/UserProfilePanel.tsx

@@ -66,7 +66,7 @@ import { useProfileAgentDeletion } from "@/features/profile/ui/UserProfilePanelD
 import { useProfileFieldBuckets } from "@/features/profile/ui/UserProfilePanelFields";
 import { submitProfilePersonaDialog } from "@/features/profile/ui/UserProfilePanelPersonaSubmit";
 import {
-  type CardMintTarget,
+  useCardMint,
   UserProfilePersonaDialogs,
 } from "@/features/profile/ui/UserProfilePersonaDialogs";
 import {
@@ -179,8 +179,6 @@ export function UserProfilePanel({
     React.useState<AgentPersona | null>(null);
   const [personaToExportSnapshot, setPersonaToExportSnapshot] =
     React.useState<AgentPersona | null>(null);
-  const [cardMintTarget, setCardMintTarget] =
-    React.useState<CardMintTarget | null>(null);
   const [requestedInstancePubkey, setRequestedInstancePubkey] = React.useState<
     string | null
   >(null);
@@ -712,6 +710,7 @@ export function UserProfilePanel({
     resolvedPersona,
   );
   const canManagePersona = isOwner === true && resolvedPersona !== undefined;
+  const cardMint = useCardMint(resolvedPersona, managedAgent);
   const canDeletePersona = canManagePersona && !resolvedPersona?.sourceTeam;
   const canDeleteProfileAgent =
     isBot &&
@@ -822,6 +821,7 @@ export function UserProfilePanel({
           agentSettingsFields={agentSettingsFields}
           diagnosticsFields={diagnosticsFields}
           onAddToChannel={() => setAddToChannelOpen(true)}
+          onCreateCard={isBot && canManagePersona ? cardMint.create : undefined}
           onDeleteAgent={handleDeleteProfileAgent}
           onDuplicateAgent={
             isBot && canManagePersona ? handleDuplicatePersona : undefined
@@ -935,7 +935,7 @@ export function UserProfilePanel({
   const personaDialogs = (
     <>
       <UserProfilePersonaDialogs
-        cardMintTarget={cardMintTarget}
+        cardMintTarget={cardMint.target}
         createError={
           createPersonaMutation.error instanceof Error
             ? createPersonaMutation.error
@@ -961,7 +961,7 @@ export function UserProfilePanel({
             ? updatePersonaMutation.error
             : null
         }
-        onCloseCardMint={() => setCardMintTarget(null)}
+        onCloseCardMint={cardMint.close}
         onCloseDelete={() => setPersonaToDelete(null)}
         onCloseDialog={() => setPersonaDialogState(null)}
         onCloseExportSnapshot={() => setPersonaToExportSnapshot(null)}

desktop/src/features/profile/ui/UserProfilePanelSections.tsx

@@ -94,6 +94,8 @@ export type ProfileSummaryViewProps = {
   agentSettingsFields: ProfileField[];
   diagnosticsFields: ProfileField[];
   onAddToChannel: () => void;
+  /** Mint an agent trading card. Present only for owner-managed personas. */
+  onCreateCard?: () => void;
   onDeleteAgent: () => void;
   onDuplicateAgent?: () => void;
   onExportAgent?: () => void;
@@ -168,6 +170,7 @@ export function ProfileSummaryView({
   agentSettingsFields,
   diagnosticsFields,
   onAddToChannel,
+  onCreateCard,
   onDeleteAgent,
   onDuplicateAgent,
   onExportAgent,
@@ -512,6 +515,7 @@ export function ProfileSummaryView({
                 isDeleteAgentPending={isAgentActionPending}
                 managedAgent={managedAgent}
                 onEditAgent={handleEditAgent}
+                onCreateCard={onCreateCard}
                 onDeleteAgent={onDeleteAgent}
                 onDuplicateAgent={onDuplicateAgent}
                 onExportAgent={onExportAgent}

desktop/src/features/profile/ui/UserProfilePanelTabs.tsx

@@ -206,6 +206,7 @@ export function ProfileInfoTabContent({
   isArchived,
   isDeleteAgentPending,
   managedAgent,
+  onCreateCard,
   onDeleteAgent,
   onDuplicateAgent,
   onExportAgent,
@@ -225,6 +226,8 @@ export function ProfileInfoTabContent({
   isArchived: boolean;
   isDeleteAgentPending: boolean;
   managedAgent?: ManagedAgent;
+  /** Mint an agent trading card. Present only for owner-managed personas. */
+  onCreateCard?: () => void;
   onDeleteAgent: () => void;
   onDuplicateAgent?: () => void;
   onExportAgent?: () => void;
@@ -257,6 +260,7 @@ export function ProfileInfoTabContent({
     !hasInfoFields &&
     !showArchiveAction &&
     !canDeleteAgent &&
+    !onCreateCard &&
     !onDuplicateAgent &&
     !onExportAgent &&
     !showActivityIngress &&
@@ -306,6 +310,7 @@ export function ProfileInfoTabContent({
         canDeleteAgent={canDeleteAgent}
         isDeletePending={isDeleteAgentPending}
         managedAgent={managedAgent}
+        onCreateCard={onCreateCard}
         onDeleteAgent={onDeleteAgent}
         onDuplicateAgent={onDuplicateAgent}
         onExportAgent={onExportAgent}

desktop/src/features/profile/ui/UserProfilePersonaDialogs.tsx

@@ -1,7 +1,10 @@
+import * as React from "react";
+
 import type {
   AcpRuntimeCatalogEntry,
   AgentPersona,
   CreatePersonaInput,
+  ManagedAgent,
   UpdatePersonaInput,
 } from "@/shared/api/types";
 import { AgentCardMintDialog } from "@/features/agents/ui/AgentCardMintDialog";
@@ -17,6 +20,30 @@ export type CardMintTarget = {
   canLock: boolean;
 };
 
+/**
+ * Card-mint dialog state plus the callback that opens it. `create` is
+ * undefined when no persona resolves; owner gating is the caller's job.
+ */
+export function useCardMint(
+  persona: AgentPersona | undefined,
+  managedAgent: ManagedAgent | undefined,
+) {
+  const [target, setTarget] = React.useState<CardMintTarget | null>(null);
+  const close = React.useCallback(() => setTarget(null), []);
+  const create = persona
+    ? () =>
+        setTarget({
+          // Prefer the live instance pubkey; fall back to the
+          // persona/definition id (same resolution as export).
+          id: managedAgent?.pubkey ?? persona.id,
+          name: persona.displayName,
+          // Locking needs an instance keypair to encrypt to.
+          canLock: Boolean(managedAgent?.pubkey),
+        })
+    : undefined;
+  return { close, create, target };
+}
+
 export function UserProfilePersonaDialogs({
   cardMintTarget,
   createError,

desktop/tests/e2e/profile.spec.ts

@@ -1466,6 +1466,7 @@ test("renders agent profile ingress subviews from the Playwright mock bridge", a
   expect(managementRowOrder).toEqual([
     "user-profile-duplicate-agent-row",
     "user-profile-export-agent-row",
+    "user-profile-create-card-row",
     "user-profile-archive-agent-row",
     "user-profile-delete-agent-row",
   ]);
@@ -1486,6 +1487,11 @@ test("renders agent profile ingress subviews from the Playwright mock bridge", a
   const exportDialog = page.getByTestId("agent-snapshot-export-dialog");
   await expect(exportDialog).toBeVisible();
   await exportDialog.getByRole("button", { name: "Cancel" }).click();
+  await page.getByTestId("user-profile-create-card-row").click();
+  const cardMintDialog = page.getByTestId("agent-card-mint-dialog");
+  await expect(cardMintDialog).toBeVisible();
+  await page.keyboard.press("Escape");
+  await expect(cardMintDialog).toHaveCount(0);
   const archiveAgentRow = page.getByTestId("user-profile-archive-agent-row");
   await expect(archiveAgentRow).toHaveText(/Archive agent/);
   await archiveAgentRow.click();