fix: add iteration counter reset on agent init

Handle 'init_event_loop' event to reset iteration count,
ensuring proper limit tracking for new agent sessions.

Author: knziiy

packages/cdk/lambda-python/generic-agent-core-runtime/src/agent.py

@@ -34,9 +34,10 @@ def __init__(self):
     def set_session_info(self, session_id: str, trace_id: str):
         """Set session and trace IDs"""
         self.tool_manager.set_session_info(session_id, trace_id)
-        self.iteration_count = 0
 
     def iteration_limit_handler(self, **ev):
+        if ev.get("init_event_loop"):
+            self.iteration_count = 0
         if ev.get("start_event_loop"):
             self.iteration_count += 1
             if self.iteration_count > self.max_iterations:

packages/cdk/test/__snapshots__/generative-ai-use-cases.test.ts.snap

@@ -4992,7 +4992,7 @@ exports[`GenerativeAiUseCases matches the snapshot (closed network mode) 4`] = `
         "AgentCoreRuntimeName": "GenericAgentCoreRuntime",
         "CustomConfig": {
           "containerImageUri": {
-            "Fn::Sub": "123456890123.dkr.ecr.us-east-1.\${AWS::URLSuffix}/cdk-hnb659fds-container-assets-123456890123-us-east-1:498ade13deb7f88e2c00806dbfebfcfcb6dd51e45fd26075fa88a8e2f33064f5",
+            "Fn::Sub": "123456890123.dkr.ecr.us-east-1.\${AWS::URLSuffix}/cdk-hnb659fds-container-assets-123456890123-us-east-1:89f9ea87f3ee318598f0b63b57f12a3762e5abe60ad4c925b317d2cf2c737d0d",
           },
           "environmentVariables": {
             "FILE_BUCKET": {
@@ -26205,7 +26205,7 @@ exports[`GenerativeAiUseCases matches the snapshot 4`] = `
         "AgentCoreRuntimeName": "GenericAgentCoreRuntime",
         "CustomConfig": {
           "containerImageUri": {
-            "Fn::Sub": "123456890123.dkr.ecr.us-east-1.\${AWS::URLSuffix}/cdk-hnb659fds-container-assets-123456890123-us-east-1:498ade13deb7f88e2c00806dbfebfcfcb6dd51e45fd26075fa88a8e2f33064f5",
+            "Fn::Sub": "123456890123.dkr.ecr.us-east-1.\${AWS::URLSuffix}/cdk-hnb659fds-container-assets-123456890123-us-east-1:89f9ea87f3ee318598f0b63b57f12a3762e5abe60ad4c925b317d2cf2c737d0d",
           },
           "environmentVariables": {
             "FILE_BUCKET": {