support agentic message in chatwitheino (#222)

* support agentic message in chatwitheino

* docs: remove message kind appendix

* docs: add message kind notes to ch04 ch05

* fix agentic session history replay

* preserve agentic reasoning history

* update

* update

* update

* refactor chatwitheino middleware helpers

* feat(chatwitheino): add middleware test stack

* Revert "feat(chatwitheino): add middleware test stack"

This reverts commit 17ecc4b.

* fix(chatwitheino): handle retries and checkpoint resume

* fix(chatwitheino): preserve agentic item ids

* docs(chatwitheino): describe AgenticMessage blocks

* docs(chatwitheino): default to AgenticMessage

* docs(chatwitheino): simplify AgenticMessage intro

* refactor chatwitheino event helpers

* docs: add TurnLoop chapter to quickstart navigation

Author: tangchaojun-bytedance

adk/intro/http-sse-service/go.mod

@@ -44,7 +44,7 @@ require (
 	github.com/pkg/errors v0.9.2-0.20201214064552-5dd12d0cfe7f // indirect
 	github.com/sirupsen/logrus v1.9.3 // indirect
 	github.com/slongfield/pyfmt v0.0.0-20220222012616-ea85ff4c361f // indirect
-	github.com/tidwall/gjson v1.14.4 // indirect
+	github.com/tidwall/gjson v1.18.0 // indirect
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.1 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect

adk/intro/http-sse-service/go.sum

@@ -498,6 +498,7 @@ github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu
 github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/tidwall/gjson v1.14.4 h1:uo0p8EbA09J7RQaflQ1aBRffTR7xedD2bcIVSYxLnkM=
 github.com/tidwall/gjson v1.14.4/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
+github.com/tidwall/gjson v1.18.0/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
 github.com/tidwall/match v1.1.1 h1:+Ho715JplO36QYgwN9PGYNhgZvoUSc9X2c80KVTi+GA=
 github.com/tidwall/match v1.1.1/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
 github.com/tidwall/pretty v1.2.0/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=