feat: add live translation UI section above dial pad

Google Translate-style side-by-side layout with per-side language
pickers on the patient connection page. UI shell only for now, no
translation provider wired up yet.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/Frontend/src/components/patient-connection/live-translate.tsx

@@ -0,0 +1,140 @@
+import { useState } from "react";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Textarea } from "@/components/ui/textarea";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import { Languages, ArrowLeftRight, Mic } from "lucide-react";
+
+const LANGUAGES = [
+  { code: "en", label: "English" },
+  { code: "es", label: "Spanish" },
+  { code: "pt", label: "Portuguese" },
+  { code: "zh", label: "Chinese" },
+  { code: "vi", label: "Vietnamese" },
+  { code: "ht", label: "Haitian Creole" },
+  { code: "fr", label: "French" },
+  { code: "ar", label: "Arabic" },
+  { code: "ru", label: "Russian" },
+];
+
+export function LiveTranslate() {
+  const [leftLang, setLeftLang] = useState("en");
+  const [rightLang, setRightLang] = useState("es");
+  const [leftText, setLeftText] = useState("");
+  const [rightText, setRightText] = useState("");
+
+  const handleSwap = () => {
+    setLeftLang(rightLang);
+    setRightLang(leftLang);
+    setLeftText(rightText);
+    setRightText(leftText);
+  };
+
+  return (
+    <Card>
+      <CardHeader className="pb-3">
+        <CardTitle className="text-base flex items-center gap-2">
+          <Languages className="h-4 w-4" />
+          Live Translation
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <div className="grid grid-cols-1 md:grid-cols-[1fr_auto_1fr] gap-3 items-stretch">
+          {/* Left side */}
+          <div className="flex flex-col gap-2">
+            <Select value={leftLang} onValueChange={setLeftLang}>
+              <SelectTrigger data-testid="select-translate-left-language">
+                <SelectValue placeholder="Language" />
+              </SelectTrigger>
+              <SelectContent>
+                {LANGUAGES.map((lang) => (
+                  <SelectItem key={lang.code} value={lang.code}>
+                    {lang.label}
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+            <div className="relative">
+              <Textarea
+                value={leftText}
+                onChange={(e) => setLeftText(e.target.value)}
+                placeholder="Type or speak..."
+                className="min-h-[120px] resize-none pr-10"
+                data-testid="textarea-translate-left"
+              />
+              <Button
+                type="button"
+                variant="ghost"
+                size="icon"
+                className="absolute bottom-2 right-2 h-7 w-7 text-muted-foreground"
+                title="Voice input (coming soon)"
+                disabled
+              >
+                <Mic className="h-4 w-4" />
+              </Button>
+            </div>
+          </div>
+
+          {/* Swap button */}
+          <div className="flex md:flex-col items-center justify-center">
+            <Button
+              type="button"
+              variant="outline"
+              size="icon"
+              onClick={handleSwap}
+              className="rounded-full"
+              title="Swap languages"
+              data-testid="button-translate-swap"
+            >
+              <ArrowLeftRight className="h-4 w-4" />
+            </Button>
+          </div>
+
+          {/* Right side */}
+          <div className="flex flex-col gap-2">
+            <Select value={rightLang} onValueChange={setRightLang}>
+              <SelectTrigger data-testid="select-translate-right-language">
+                <SelectValue placeholder="Language" />
+              </SelectTrigger>
+              <SelectContent>
+                {LANGUAGES.map((lang) => (
+                  <SelectItem key={lang.code} value={lang.code}>
+                    {lang.label}
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+            <div className="relative">
+              <Textarea
+                value={rightText}
+                onChange={(e) => setRightText(e.target.value)}
+                placeholder="Translation will appear here..."
+                className="min-h-[120px] resize-none pr-10"
+                data-testid="textarea-translate-right"
+              />
+              <Button
+                type="button"
+                variant="ghost"
+                size="icon"
+                className="absolute bottom-2 right-2 h-7 w-7 text-muted-foreground"
+                title="Voice input (coming soon)"
+                disabled
+              >
+                <Mic className="h-4 w-4" />
+              </Button>
+            </div>
+          </div>
+        </div>
+        <p className="text-xs text-muted-foreground mt-3">
+          Translation isn't connected to an AI provider yet — this is the UI shell for now.
+        </p>
+      </CardContent>
+    </Card>
+  );
+}

apps/Frontend/src/pages/patient-connection-page.tsx

@@ -29,6 +29,7 @@ import {
 import { SmsTemplateDialog } from "@/components/patient-connection/sms-template-diaog";
 import { MessageThread } from "@/components/patient-connection/message-thread";
 import { DialPad } from "@/components/patient-connection/dial-pad";
+import { LiveTranslate } from "@/components/patient-connection/live-translate";
 import { useToast } from "@/hooks/use-toast";
 import { apiRequest } from "@/lib/queryClient";
 import type { Patient } from "@repo/db/types";
@@ -427,6 +428,11 @@ export default function PatientConnectionPage() {
         </CardContent>
       </Card>
 
+      {/* Live Translation */}
+      <div className="mt-6 max-w-2xl">
+        <LiveTranslate />
+      </div>
+
       {/* Dial Pad */}
       <div className="mt-6 max-w-xs">
         <DialPad />