`but absorb` timeline entries

[schacon]

It would be nice to see when you ran an absorb, rather than just the CreateCommit entries:

❯ but st                                                                                                        took 5s
╭┄00 [Unassigned Changes]
┊   rv M config/routes.rb 🔒 43950c7
┊
┊╭┄v7 [sc-branch-30]
┊●   43950c7 test commit two
┊●   436a73c test commit
├╯
┊
● 204e309 (common base) [origin/main] 2025-07-06 08:10:34 +0200 Merge pull request #10 from schacon/sc-description

❯ but absorb
Absorbed changes into commit 43950c7

❯ but oplog
Operations History
──────────────────────────────────────────────────
aa7fe8a3d2db 2025-11-07 16:28:04 [CREATE] CreateCommit
6554a1fe91e7 2025-11-07 16:27:55 [CREATE] CreateCommit
cdbff4313d36 2025-11-07 16:27:18 [DELETE] DeleteBranch
2e914773859f 2025-11-07 16:26:55 [OTHER] EnterEditMode
ae9c703d5863 2025-11-07 16:26:49 [UNDO] UndoCommit
ca2b88e10235 2025-11-07 16:26:42 [REORDER] ReorderCommit

I think showing that an absorb command was run would be nice.