Update Policy Enforcer Configuration Keys

- Changed configuration key from `policyDir` to `policyPaths` across multiple YAML files and related code to standardize the naming convention.
- Updated documentation to reflect the new key name and its usage for specifying local directories containing `.rego` policy files.
- Adjusted tests to ensure compatibility with the updated configuration structure.

config/local-beckn-one-bap.yaml

@@ -89,7 +89,7 @@ modules:
         policyEnforcer:
           id: policyenforcer
           config:
-            policyDir: "./policies"
+            policyPaths: "./policies"
         middleware:
           - id: reqpreprocessor
             config:

config/local-beckn-one-bpp.yaml

@@ -87,7 +87,7 @@ modules:
         policyEnforcer:
           id: policyenforcer
           config:
-            policyDir: "./policies"
+            policyPaths: "./policies"
       steps:
         - validateSign
         - policyEnforcer

config/local-simple.yaml

@@ -69,7 +69,7 @@ modules:
         policyEnforcer:
           id: policyenforcer
           config:
-            policyDir: "./policies"
+            policyPaths: "./policies"
         middleware:
           - id: reqpreprocessor
             config:
@@ -170,7 +170,7 @@ modules:
         policyEnforcer:
           id: policyenforcer
           config:
-            policyDir: "./policies"
+            policyPaths: "./policies"
       steps:
         - validateSign
         - policyEnforcer

config/onix/adapter.yaml

@@ -51,7 +51,7 @@ modules:
         policyEnforcer:
           id: policyenforcer
           config:
-            policyDir: "./policies"
+            policyPaths: "./policies"
         signValidator:
           id: signvalidator
         publisher:
@@ -106,7 +106,7 @@ modules:
         policyEnforcer:
           id: policyenforcer
           config:
-            policyDir: "./policies"
+            policyPaths: "./policies"
         signer:
           id: signer
         publisher:
@@ -162,7 +162,7 @@ modules:
         policyEnforcer:
           id: policyenforcer
           config:
-            policyDir: "./policies"
+            policyPaths: "./policies"
         signValidator:
           id: signvalidator
         publisher:
@@ -217,7 +217,7 @@ modules:
         policyEnforcer:
           id: policyenforcer
           config:
-            policyDir: "./policies"
+            policyPaths: "./policies"
         signer:
           id: signer
         publisher: