Merged incoming changes

LiteCharms.Features.Tests/http/litecharms/app.http

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+### Authentik Token Request (Service Account Explicit)
+POST {{authority}}/connect/token
+Content-Type: application/x-www-form-urlencoded
+Accept-Encoding: identity
+
+grant_type={{grantType}}&client_id={{clientId}}&client_secret={{clientSecret}}&scope={{scope}}

LiteCharms.Features.Tests/http/litecharms/http-client.env.json

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+{
+  "uat": {
+    "authority": "https://sts.security.khongisa.co.za",
+    "grantType": "client_credentials",
+    "clientId": "midrandbooks-api-scaler-uat",
+    "clientSecret": "secret_0a8dc1f99061590a52b1272db3a1871d2761c79fbd058b2a968911029e4b208a",
+    "scope": "midrandbooks-api"
+  }
+}

LiteCharms.Features.Tests/http/midrandshop-api/app.http

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+## Payfast Payment Confirmation
+# This endpoint is used by Payfast to confirm the payment status of a transaction. 
+# It receives a POST request with the payment details and updates the order status accordingly.
+
+POST {{baseUrl}}/v1/payments/payfast/confirm
+Content-Type: application/x-www-form-urlencoded
+
+amount={{amount}}&item_name={{item_name}}&m_payment_id={{paymentId}}&signature={{signature}}