feat: persist diff file review checkmarks

TODO.md

@@ -1,23 +1,17 @@
-- [x] command autocompletion via `tab` (multiple presses cycles candidates)
-- [x] fix ruby linting for the vamp config file (see attached image)
-- [x] execute terminal commands asynchronously using the `!` prefix (e.g. `!pwd`) and display the output in a floating window.
-    - while waiting on executed commands, show their delayed labels/spinners in one independently styled element just left of the battery status in the top bar (top-right corner)
-    - indicate also the command that we're waiting on, maybe something like the first three characters (followed by ellipses if truncated), e.g. `pwd <spinner>` or if the command was `echo $PATH`, then `ech... <spinner>`.
-- [ ] save reviewed (checkmark) state for files in the diff view too - we already save comments, so the reviewed state should be an easy addition.
-- [ ] diff view: GitHub code review integration after the local review UX is usable.
+- [ ] feature: diff view - GitHub code review integration after the local review UX is usable.
 	- publish local reviews explicitly: general PR comments, inline line/range comments, review summaries, approval, and requests for changes.
 	- preserve explicit PR identity and reviewed commit IDs; validate anchors against GitHub's PR diff and recheck the PR head before submission.
 	- keep authentication, network requests, publishing, and remote thread synchronization out of the local UX work; treat timed-out writes as unknown outcomes rather than automatically retrying.
 	- define follow-on scope for reading/replying to remote threads, editing/deleting published comments, and resolving threads.
-- [ ] take a look at the configuration options and their names, and consider whether renaming some of them is warranted, as well as maybe nesting some under some common namespace (like some already are).
-- [ ] remove the diff palette polling fallback once a released Herdr fix delivers palette-ready DEC 2031 notifications, including palette-only changes with an unchanged light/dark preference. Related upstream issue: [herdrdev/herdr#4183](https://github.com/herdrdev/herdr/issues/4183).
+- [ ] chore: take a look at the configuration options and their names, and consider whether renaming some of them is warranted, as well as maybe nesting some under some common namespace (like some already are).
+- [ ] chore: remove the diff palette polling fallback once a released Herdr fix delivers palette-ready DEC 2031 notifications, including palette-only changes with an unchanged light/dark preference. Related upstream issue: [herdrdev/herdr#4183](https://github.com/herdrdev/herdr/issues/4183).
 	- verify that notification-triggered queries return fresh colors in Ghostty through Herdr before removal; retain startup, focus-regain, and notification-driven palette refresh.
-- [ ] pull a pr description and display it in a buffer:
+- [ ] feature: pull a pr description and display it in a buffer:
 	- open a selector that allows you to pick a pr from remote
 	- selector should be searchable
 	- selected pr description is opened in a separate buffer/tab.
 	- open related pr description directly from diff view (should be able to figure out the relevant pr from the branch involved in the diff - if jj, then from tracked bookmark; if just git, then from branch)
-- [ ] sandboxed, revision-specific LSP analysis for historical diff states and historical tabs.
+- [ ] feature: sandboxed, revision-specific LSP analysis for historical diff states and historical tabs.
 	- current limitation: immutable snapshot buffers still use the live repository as their LSP workspace; cross-file analysis can mix historical text with current disk contents.
 	- lazily materialize the complete selected revision, including unchanged files, manifests, and project configuration; run a separate LSP instance rooted in that snapshot.
 	- mount historical source read-only and provide isolated writable scratch directories for caches, indexes, and build output; keep historical navigation targets read-only.