fix(service-ai): change package tool category from 'system' to 'utility'

ToolCategorySchema only supports: data, action, flow, integration, vector_search, analytics, utility.
Changed all 5 package management tools from 'system' to 'utility' category.

Agent-Logs-Url: https://github.com/objectstack-ai/framework/sessions/78d4dda5-4db1-46bc-ba64-1eab41672f23

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Claude

packages/services/service-ai/src/tools/create-package.tool.ts

@@ -15,7 +15,7 @@ export const createPackageTool = defineTool({
     'Creates a new package (metadata container) with the specified manifest. ' +
     'All metadata in ObjectStack should belong to a package. Use this when starting new development ' +
     'or when the user wants to organize their metadata into a new module.',
-  category: 'system',
+  category: 'utility',
   builtIn: true,
   parameters: {
     type: 'object',

packages/services/service-ai/src/tools/get-active-package.tool.ts

@@ -13,7 +13,7 @@ export const getActivePackageTool = defineTool({
   description:
     'Gets the currently active package in this conversation. The active package determines ' +
     'where new metadata will be created. Returns null if no package is set.',
-  category: 'system',
+  category: 'utility',
   builtIn: true,
   parameters: {
     type: 'object',

packages/services/service-ai/src/tools/get-package.tool.ts

@@ -13,7 +13,7 @@ export const getPackageTool = defineTool({
   description:
     'Gets detailed information about a specific installed package, including its manifest, ' +
     'metadata, and installation status.',
-  category: 'system',
+  category: 'utility',
   builtIn: true,
   parameters: {
     type: 'object',

packages/services/service-ai/src/tools/list-packages.tool.ts

@@ -14,7 +14,7 @@ export const listPackagesTool = defineTool({
   description:
     'Lists all installed packages in the system. Use this to see what packages are available ' +
     'before creating or modifying metadata. Packages are the containers that hold metadata.',
-  category: 'system',
+  category: 'utility',
   builtIn: true,
   parameters: {
     type: 'object',

packages/services/service-ai/src/tools/set-active-package.tool.ts

@@ -14,7 +14,7 @@ export const setActivePackageTool = defineTool({
   description:
     'Sets the active package for this conversation. All subsequent metadata creation operations ' +
     '(objects, views, flows, etc.) will be associated with this package unless explicitly overridden.',
-  category: 'system',
+  category: 'utility',
   builtIn: true,
   parameters: {
     type: 'object',