Update changelog for sdk-js v0.0.149 (#307)

Author: devin-ai-integration[bot]

content/Changelog/sdk-js.mdx

@@ -7,6 +7,19 @@ import { Callout } from 'fumadocs-ui/components/callout';
 
 This page documents the release history of the [Agentuity JavaScript SDK](https://github.com/agentuity/sdk-js).
 
+## v0.0.149
+
+<Callout type="info">
+  Released: October 3, 2025
+</Callout>
+
+**Changes**
+
+- **Changed**: Prompt API signature from `_experimental_prompts()` method to `prompts` property ([PR #190](https://github.com/agentuity/sdk-js/pull/190))
+- **Added**: Generic types for prompts (PromptName, PromptObject, PromptsAPI) ([PR #190](https://github.com/agentuity/sdk-js/pull/190))
+- **Added**: Conditional exports with fallback handling for generated content ([PR #190](https://github.com/agentuity/sdk-js/pull/190))
+
+
 ## v0.0.148
 
 <Callout type="info">