chore: merge dev to preview

[rahulnr7]

Note

Aligns data-fetching hooks to surface absence of data via undefined instead of fallback values.

• Updates useRemoteConfig to return undefined when fetch fails (was empty object), and adjusts query type

• Updates useAirdropEligibility query to allow undefined on address retrieval errors (keeps [] for valid empty states); rest of logic unchanged

• Updates usePrimaryTokenActivity to type/query for PrimaryTokenActivity | undefined and return undefined on API failure (consumer still provides a default when rendering)

• No changes to query keys, intervals, or caching semantics; primarily type/return-value behavior

^{Written by Cursor Bugbot for commit 61d5d62. This will update automatically on new commits. Configure here.}