Retrieve AcctDemo_NamedCreds into source; add to manifest

SecuredEndpoint credential pointing to account-d.docusign.com, backed by
the DocusignJWT external credential. Referenced by DTC_CLM_Demo account
setting for ESignature_Auth_Named_Credential__c.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docs/SALESFORCE_SETUP.md

@@ -42,7 +42,7 @@
 - `CLMuatNamedCreds`, `CLMs1NamedCreds` — CLM API calls
 - `CLMuatDownload`, `CLMs1Download` — CLM document downloads
 - `Esignature_Demo_NamedCreds` — eSignature REST API
-- `AcctDemo_NamedCreds` — eSignature OAuth/userinfo (**not in source; must be created manually in the target org**)
+- `AcctDemo_NamedCreds` — eSignature OAuth/userinfo (SecuredEndpoint backed by `DocusignJWT` external credential)
 
 ### Layouts and UI
 - Page layouts for `Appraiser_Case__c` and `Appraiser_Case_Deficiency__c`
@@ -61,13 +61,6 @@
 
 ## Manual post-deploy steps
 
-### Named credentials not yet in source
-The following exist in the target org but have not been retrieved into `force-app/`:
-
-- **`AcctDemo_NamedCreds`** — eSignature OAuth/userinfo credential referenced by `DTC_CLM_Demo` account setting. Retrieve it with:
-  ```bash
-  sf project retrieve start --metadata "NamedCredential:AcctDemo_NamedCreds"
-  ```
 
 ### DocusignJWT external credential
 `force-app/main/default/externalCredentials/DocusignJWT.externalCredential-meta.xml` contains demo values for `iss` (integration key) and `sub` (user GUID) targeting `account-d.docusign.com`. Replace these with your org's actual integration key and impersonation user GUID before use.

force-app/main/default/namedCredentials/AcctDemo_NamedCreds.namedCredential-meta.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<NamedCredential xmlns="http://soap.sforce.com/2006/04/metadata">
+    <allowMergeFieldsInBody>false</allowMergeFieldsInBody>
+    <allowMergeFieldsInHeader>false</allowMergeFieldsInHeader>
+    <calloutStatus>Enabled</calloutStatus>
+    <generateAuthorizationHeader>true</generateAuthorizationHeader>
+    <label>AcctDemo_NamedCreds</label>
+    <namedCredentialParameters>
+        <parameterName>Url</parameterName>
+        <parameterType>Url</parameterType>
+        <parameterValue>https://account-d.docusign.com</parameterValue>
+    </namedCredentialParameters>
+    <namedCredentialParameters>
+        <externalCredential>DocusignJWT</externalCredential>
+        <parameterName>ExternalCredential</parameterName>
+        <parameterType>Authentication</parameterType>
+    </namedCredentialParameters>
+    <namedCredentialType>SecuredEndpoint</namedCredentialType>
+</NamedCredential>

manifest/package.xml

@@ -57,6 +57,7 @@
         <name>Layout</name>
     </types>
     <types>
+        <members>AcctDemo_NamedCreds</members>
         <members>CLMs1Download</members>
         <members>CLMs1NamedCreds</members>
         <members>CLMuatDownload</members>