[adedamolamiposi]

Linked issue

• Closes Include the new splits in the splits event #41
• Closes Require the new owner to authorize a jar ownership transfer #42
• Closes Reject an ownership transfer to the jar's current owner #43
• Closes Add a delete_jar function so an owner can release a slug #44

What changed

Checks

• cargo fmt --all -- --check passes
• cargo clippy --all-targets -- -D warnings passes
• cargo test passes from a clean checkout (before any wasm build)
• The CI wasm size check still measures tip_splitter.wasm (not an example or test artifact)

Interface changes

Complete every row that applies; tick nothing you did not touch.

• No public interface changed — the rows below do not apply.
• A public function was added, changed, or removed, and docs/CONTRACT.md reflects it.
• A new error code was appended (never renumbered or reused) and is documented in the error table.
• An event's topics or payload changed, and this PR carries a Consumer impact note saying exactly what a decoder must change (@novatip/sdk, the backend indexer, docs/CONTRACT.md).
• CHANGELOG.md has an entry under [Unreleased] describing the change from the reader's point of view.
• A bound or constant changed that clients read via get_limits, and the literal-value test was updated with it.

Consumer impact