docs: rewrite 3.1.0 changelog entry for quality and clarity (#72)

* docs: improve 3.1.0 changelog and release notes workflow

* docs: refine 3.1.0 changelog entry

* Update Java SDK version snippet to 3.1.0

* Update Java Gradle snippet to 3.1.0

Author: saurabhjain1592

CHANGELOG.md

@@ -9,8 +9,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
-- Removed legacy internal endpoint helper methods `getOrchestratorUrl()` and `getPortalUrl()` from `AxonFlow`
-- Portal and orchestrator request builders now directly use `config.getEndpoint()`, matching ADR-026 Single Entry Point architecture
+- Simplified internal endpoint handling by removing legacy helper names `getPortalUrl()` and `getOrchestratorUrl()`.
+- Internal request URL construction is now standardized on `config.getEndpoint()`.
+- No public API change.
 
 ## [3.0.0] - 2026-02-03
 

README.md

@@ -33,14 +33,14 @@ If you're new to AxonFlow, this short video shows how the control plane and SDKs
 <dependency>
     <groupId>com.getaxonflow</groupId>
     <artifactId>axonflow-sdk</artifactId>
-    <version>2.3.0</version>
+    <version>3.1.0</version>
 </dependency>
 ```
 
 ### Gradle
 
 ```groovy
-implementation 'com.getaxonflow:axonflow-sdk:2.3.0'
+implementation 'com.getaxonflow:axonflow-sdk:3.1.0'
 ```
 
 ## Quick Start