TODO.md: open work only (closes #235)

Removes the Completed Steps section: dated accounts of finished work,
review and merge history, and notes on past decisions. Git keeps the
history. The Workflow, Status, Next Step and Future Steps sections are
unchanged.

Model: opus-5-5

README.md

@@ -671,9 +671,6 @@ but letters and digits, or when it is longer than 16 characters.
 When the date or the time zone changes, the next run stores the original at its
 new path and leaves the old copy where it is.
 
-A file deleted in Ente keeps its original at its save path, and the JSON beside
-it. The next run removes its symlinks from the collection directories.
-
 The library gives the same path as `photo.savePath` and writes it with
 `photo.download()` (see "A photo's content").
 
@@ -1938,7 +1935,8 @@ These apply to people and to coding agents alike.
 
 ## TODO
 
-`TODO.md` in the repo root holds the next step and the steps planned. Open now:
+`TODO.md` in the repo root is the work log: the next step, the steps done and
+the steps planned. Open now:
 
 - [ ] Check quak against a live Ente account. This needs an account only sneak
       has.

TODO.md

@@ -2,7 +2,7 @@
 
 - branch from `next`
 - do the work in Next Step
-- delete Next Step from `TODO.md`
+- move Next Step to the top of Completed Steps
 - move the top item of Future Steps into Next Step
 - commit (`TODO.md` changes in the same commit as the work)
 - push