fix: update cursor pagination description for dependabot alerts

Author: MayorFaj

README.md

@@ -717,7 +717,7 @@ The following sets of tools are available:
 - **list_dependabot_alerts** - List dependabot alerts
   - **Required OAuth Scopes**: `security_events`
   - **Accepted OAuth Scopes**: `repo`, `security_events`
-  - `after`: Forward pagination cursor from the previous response's pageInfo.nextCursor. (string, optional)
+  - `after`: Omit for the first page. For subsequent pages, use pageInfo.nextCursor from the previous response. (string, optional)
   - `owner`: The owner of the repository. (string, required)
   - `perPage`: Results per page for pagination (min 1, max 100) (number, optional)
   - `repo`: The name of the repository. (string, required)

pkg/github/__toolsnaps__/list_dependabot_alerts.snap

@@ -7,7 +7,7 @@
   "inputSchema": {
     "properties": {
       "after": {
-        "description": "Forward pagination cursor from the previous response's pageInfo.nextCursor.",
+        "description": "Omit for the first page. For subsequent pages, use pageInfo.nextCursor from the previous response.",
         "type": "string"
       },
       "owner": {

pkg/github/dependabot.go

@@ -124,7 +124,7 @@ func ListDependabotAlerts(t translations.TranslationHelperFunc) inventory.Server
 	// The Dependabot alerts REST endpoint uses cursor pagination via the response's
 	// Link header (surfaced as pageInfo.nextCursor), not GraphQL. Override the shared
 	// cursor description, which otherwise refers to a GraphQL PageInfo.
-	schema.Properties["after"].Description = "Forward pagination cursor from the previous response's pageInfo.nextCursor."
+	schema.Properties["after"].Description = "Omit for the first page. For subsequent pages, use pageInfo.nextCursor from the previous response."
 
 	return NewTool(
 		ToolsetMetadataDependabot,