add serverless-plugin-split-stacks and update serverless configuration; refactor host function definitions and improve updateHostProfile handler

serverless.yml

@@ -16,6 +16,11 @@ provider:
   runtime: nodejs22.x
   region: ap-south-1
   stage: ${opt:stage, 'dev'}
+  deploymentBucket:
+    # use a fixed bucket name to prevent Serverless from creating/quashing a resource
+    name: serverless-framework-deployments-ap-south-1-50264b8e-d2b9
+    # optionally uncomment below to enable serverless to create if missing
+    # serverSideEncryption: AES256
   versionFunctions: false
   memorySize: 512
   # Apply Prisma layer to all functions
@@ -73,10 +78,6 @@ provider:
             - 'arn:aws:s3:::${env:S3_BUCKET_NAME}'
             - 'arn:aws:s3:::${env:S3_BUCKET_NAME}/*'
  
-custom:
-  serverless-offline:
-    reloadHandler: true
- 
 build:
   esbuild:
     bundle: true
@@ -149,4 +150,20 @@ functions:
   - ${file(./serverless/functions/user.yml)}
  
 plugins:
-  - serverless-offline
+  - serverless-offline
+  - serverless-plugin-split-stacks
+
+custom:
+  serverless-offline:
+    reloadHandler: true
+
+  # split-stacks configuration to avoid CloudFormation resource limit
+  splitStacks:
+    perType: true
+    # You can fine‑tune to exclude resource types that don't need splitting
+    exclude:
+      - AWS::Lambda::Permission
+      - AWS::Logs::LogGroup
+      - AWS::IAM::Role
+      - AWS::IAM::Policy      # keep deployment bucket in main stack to avoid dependency errors
+      - AWS::S3::Bucket