* refactor: use a map of providers that support pending transactions
* feat: add pending transaction manual merging tool
* fix(coderabbit): validate posted_entry_id against eligible posted candidates server-side
* fix(coderabbit): validate offset for negative numbers
* fix(coderabbit): check if pending_duplicate_candidates has_more in one transaction
* refactor: use list of radio buttons for better pagination
* chore: show current transaction range in paginated view
* chore: whitespace
chore: whitespace
