feat: Add API routes for creating, confirming, and submitting payment intents, and verifying wallets.

frontend/app/api/payments/intents/[intentId]/confirm/route.ts

@@ -20,14 +20,13 @@ export async function POST(
   try {
     const body = await req.json();
     const auth = await buildBackendRequestHeaders(req);
+    const proxiedHeaders = new Headers(auth.headers);
+    proxiedHeaders.set("Content-Type", "application/json");
     const res = await fetch(
       `${API_BASE}/api/payments/intents/${encodeURIComponent(intentId)}/confirm`,
       {
         method: "POST",
-        headers: {
-          ...auth.headers,
-          "Content-Type": "application/json",
-        },
+        headers: proxiedHeaders,
         body: JSON.stringify(body ?? {}),
         cache: "no-store",
       },

frontend/app/api/payments/intents/[intentId]/submit/route.ts

@@ -20,14 +20,13 @@ export async function POST(
   try {
     const body = await req.json();
     const auth = await buildBackendRequestHeaders(req);
+    const proxiedHeaders = new Headers(auth.headers);
+    proxiedHeaders.set("Content-Type", "application/json");
     const res = await fetch(
       `${API_BASE}/api/payments/intents/${encodeURIComponent(intentId)}/submit`,
       {
         method: "POST",
-        headers: {
-          ...auth.headers,
-          "Content-Type": "application/json",
-        },
+        headers: proxiedHeaders,
         body: JSON.stringify(body ?? {}),
         cache: "no-store",
       },

frontend/app/api/payments/intents/route.ts

@@ -16,12 +16,11 @@ export async function POST(req: NextRequest) {
   try {
     const body = await req.json();
     const auth = await buildBackendRequestHeaders(req);
+    const proxiedHeaders = new Headers(auth.headers);
+    proxiedHeaders.set("Content-Type", "application/json");
     const res = await fetch(`${API_BASE}/api/payments/intents`, {
       method: "POST",
-      headers: {
-        ...auth.headers,
-        "Content-Type": "application/json",
-      },
+      headers: proxiedHeaders,
       body: JSON.stringify(body ?? {}),
       cache: "no-store",
     });