Add HLS.js support and enhance content streaming logic

- Integrated HLS.js version 1.6.15 into the project for improved video streaming capabilities.
- Updated the ContentsController to check for HLS manifest availability and fall back to presigned URLs for original files if not found.
- Enhanced the VideoPlayer component to handle loading and error states more effectively, improving user experience during streaming.
- Refactored content service methods to return detailed streaming information, including HLS and DASH manifest URLs.

backend/src/payment/providers/services/btcpay.service.ts

@@ -353,25 +353,51 @@ export class BTCPayService implements LightningService {
       const bolt11 = await this.resolveLightningAddress(address, sats);
 
       // Pay the BOLT11 via BTCPay's internal Lightning node
+      const payUrl = this.storeUrl('/lightning/BTC/invoices/pay');
+      Logger.log(
+        `Paying ${sats} sats to ${address} via ${payUrl}`,
+        'BTCPayService',
+      );
+
       const { data } = await axios.post<BTCPayLightningPayResponse>(
-        this.storeUrl('/lightning/BTC/invoices/pay'),
+        payUrl,
         { BOLT11: bolt11 },
         { headers: this.headers },
       );
 
-      if (data.result !== 'Ok') {
+      Logger.log(
+        `BTCPay pay response: ${JSON.stringify(data)}`,
+        'BTCPayService',
+      );
+
+      // BTCPay Greenfield API returns different shapes depending on version.
+      // Older versions return { result, errorDetail, paymentHash }.
+      // Newer versions may return the payment hash/preimage at top level
+      // or an empty 200 on success.
+      const result = data?.result;
+      const paymentHash =
+        data?.paymentHash ?? (data as any)?.payment_hash ?? 'btcpay-payment';
+
+      if (result && result !== 'Ok') {
         throw new Error(
-          `Lightning payment failed: ${data.result} — ${data.errorDetail || 'unknown error'}`,
+          `Lightning payment failed: ${result} — ${data?.errorDetail || 'unknown error'}`,
         );
       }
 
       return {
-        id: data.paymentHash || 'btcpay-payment',
+        id: paymentHash,
         status: 'COMPLETED',
       };
     } catch (error) {
-      Logger.error('BTCPay sendPayment failed: ' + error.message, 'BTCPayService');
-      throw new Error(error.message);
+      const detail =
+        error.response?.data
+          ? JSON.stringify(error.response.data)
+          : error.message;
+      Logger.error(
+        `BTCPay sendPayment failed: ${detail}`,
+        'BTCPayService',
+      );
+      throw new Error(detail);
     }
   }