Bump @shopify/store to minor (feature scaffolding, not a fix)

Author: alfonso-noriega

.changeset/preview-store-session-discriminator.md

@@ -1,5 +1,5 @@
 ---
-'@shopify/store': patch
+'@shopify/store': minor
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 Add a `kind` discriminator (`'standard' | 'preview'`) and optional `preview` metadata to stored store auth sessions, plus a recovery dispatcher that surfaces a preview-specific error when a placeholder-owned session can no longer be reached. Internal scaffolding for the upcoming `shopify store create preview` command — no user-visible change yet. Sessions written before this field existed continue to read back as `'standard'`.