Add 'PRODUCT_ANALYTICS' to SericeDomain enum (#806)

We will be adding some product analytics toolkits in the near future

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Low risk: adds a new `ServiceDomain` enum value and bumps the package
version, with minimal behavioral impact beyond any downstream enum
matching/serialization expectations.
> 
> **Overview**
> Adds `ServiceDomain.PRODUCT_ANALYTICS` (`"product_analytics"`) to tool
metadata classification to support upcoming product analytics
integrations.
> 
> Bumps `arcade-core` version from `4.5.0` to `4.6.0`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
84666eaf997401559f8025dbe43563fdd03acd49. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

libs/arcade-core/arcade_core/metadata.py

@@ -106,6 +106,9 @@ class ServiceDomain(str, Enum):
     TRAVEL = "travel"
     """Travel search, flight and hotel booking platforms."""
 
+    PRODUCT_ANALYTICS = "product_analytics"
+    """Product analytics — user behavior tracking, funnels, retention, session replay, and experimentation."""
+
 
 class Operation(str, Enum):
     """

libs/arcade-core/pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "arcade-core"
-version = "4.5.0"
+version = "4.6.0"
 description = "Arcade Core - Core library for Arcade platform"
 readme = "README.md"
 license = { text = "MIT" }