fix: Scope IAM, lowercase durable functions

- Scope lambda:InvokeFunction to specific functions instead of wildcard
- Lowercase durable functions throughout docs and template
- Add expected test output in README
- Add LinkedIn profile to example-pattern.json

Author: 4D54

lambda-durable-hitl-python-sam/README.md

@@ -1,4 +1,4 @@
-# Lambda Durable Functions to DynamoDB with Human-in-the-Loop
+# AWS Lambda durable functions to DynamoDB with Human-in-the-Loop
 
 This pattern demonstrates how to implement Lambda durable functions with Human-in-the-Loop (HITL) approval workflows. The workflow pauses execution, waits for human approval via callback, and resumes based on the decision while maintaining state across the pause/resume cycle.
 
@@ -137,6 +137,10 @@ aws logs tail /aws/lambda/$WORKFLOW_FUNCTION --follow
 
 Expected output: The workflow should complete and return the approval decision. The DynamoDB item should show status as "approved" with the approver's comments and timestamp.
 
+A successful test shows these log messages:
+- Workflow logs: `Callback created` → `Approval request created` → `SNS notification sent` → `Waiting for approval callback`
+- After approval: `Callback received, workflow resuming` → `Workflow completed successfully` with decision "approved"
+
 ## Cleanup
 
 1. Delete the stack

lambda-durable-hitl-python-sam/example-pattern.json

@@ -1,5 +1,5 @@
 {
-  "title": "Lambda Durable Functions with Human-in-the-Loop",
+  "title": "Lambda durable functions with Human-in-the-Loop",
   "description": "Demonstrates Lambda durable functions with human approval workflow using Python 3.13, DynamoDB, and SNS",
   "language": "Python",
   "level": "300",
@@ -66,13 +66,14 @@
   "authors": [
     {
       "name": "Mian Tariq",
-      "bio": "Cloud Solutions Architect"
+      "bio": "Cloud Solutions Architect",
+      "linkedin": "mian-tariq"
     }
   ],
   "patternArch": {
     "icon1": {
       "name": "lambda",
-      "label": "Lambda Durable Functions"
+      "label": "Lambda durable functions"
     },
     "icon2": {
       "name": "dynamodb",

lambda-durable-hitl-python-sam/template.yaml

@@ -1,7 +1,7 @@
 AWSTemplateFormatVersion: '2010-09-09'
 Transform: AWS::Serverless-2016-10-31
 Description: >
-  Lambda Durable Functions with Human-in-the-Loop (HITL) Pattern
+  Lambda durable functions with Human-in-the-Loop (HITL) Pattern
   
   This pattern demonstrates how to pause Lambda execution, wait for human approval,
   and resume using the Lambda durable functions SDK with Python 3.13.
@@ -102,7 +102,7 @@ Resources:
               - Effect: Allow
                 Action:
                   - lambda:InvokeFunction
-                Resource: !Sub 'arn:aws:lambda:${AWS::Region}:${AWS::AccountId}:function:${AWS::StackName}-*'
+                Resource: !Sub 'arn:aws:lambda:${AWS::Region}:${AWS::AccountId}:function:${AWS::StackName}-ApprovalApi'
               - Effect: Allow
                 Action:
                   - lambda:CheckpointDurableExecution
@@ -165,7 +165,7 @@ Resources:
               - Effect: Allow
                 Action:
                   - lambda:InvokeFunction
-                Resource: !Sub 'arn:aws:lambda:${AWS::Region}:${AWS::AccountId}:function:${AWS::StackName}-*'
+                Resource: !Sub 'arn:aws:lambda:${AWS::Region}:${AWS::AccountId}:function:${AWS::StackName}-Workflow'
               - Effect: Allow
                 Action:
                   - lambda:SendDurableExecutionCallbackSuccess