* Show toast instead of redirecting after league settings save
Commishes now stay on the settings page when saving, with a Sonner
toast confirming the save rather than being navigated to the league
homepage.
https://claude.ai/code/session_01PewdKxVfAbqasJbmk2UGw4
* Fix toast firing for unrelated intents after settings save
Tag update responses with intent: "update" so the success useEffect
only fires for the main settings form, not for owner/commissioner/
reset-draft actions which also return { success: true }. Also replaces
the remaining ?updated=true redirect (no-season edge case) with the
same response shape for consistency.
https://claude.ai/code/session_01PewdKxVfAbqasJbmk2UGw4
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Co-authored-by: Claude <noreply@anthropic.com>
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