Add Markdown Formatting

Nucleic-Session: 23936B4B-52E9-43F5-908B-C7919A5BD6DD
Co-authored-by: Nucleic <[email protected]>

NucleicRemote/NucleicRemote/Views/Transcript/HostExecCard.swift

@@ -177,18 +177,22 @@ struct HostCommandBreakdown: View {
     /// The deterministic, command-derived purpose — labeled so the user knows it's *Nucleic's*
     /// reading of the command, not the agent's claim about it.
     private var purposeRow: some View {
-        HStack(alignment: .top, spacing: 9) {
-            Image(systemName: "sparkles").font(.callout).foregroundStyle(accent).frame(width: 16)
-            VStack(alignment: .leading, spacing: 2) {
-                Text("Likely purpose · inferred from the command")
-                    .font(.caption2.weight(.semibold)).foregroundStyle(.secondary)
+        HStack(alignment: .top, spacing: 10) {
+            Image(systemName: "sparkles").font(.title3).foregroundStyle(accent).frame(width: 22)
+            VStack(alignment: .leading, spacing: 3) {
                 Text(MessageBubble.markdown(summary.purpose))
-                    .font(.callout.weight(.semibold))
+                    .font(.title3.weight(.semibold))
                     .fixedSize(horizontal: false, vertical: true)
                     .textSelection(.enabled)
+                Text("Likely purpose · inferred from the command")
+                    .font(.caption2.weight(.medium)).foregroundStyle(.secondary)
             }
             Spacer(minLength: 0)
         }
+        .padding(.horizontal, 11).padding(.vertical, 9)
+        .frame(maxWidth: .infinity, alignment: .leading)
+        .background(accent.opacity(0.12), in: RoundedRectangle(cornerRadius: 8))
+        .overlay(RoundedRectangle(cornerRadius: 8).strokeBorder(accent.opacity(0.22), lineWidth: 1))
     }
 
     /// A red banner for the two things a host command most needs flagged before "Allow": running