docs: bring CLAUDE.md, README, TODO current after the three features

- CLAUDE.md: new hard rule that removal functions are exact inverses of
  their add counterparts (round-trip self-tests); TRASH_DIR added to the
  server constants; verified-live list extended with list-repos and a
  full delete cycle.
- README: TRASH_DIR in the server-install constants and its dir note.
- TODO: items 1-3 already marked done; cross-cutting work folded in;
  remaining leftovers listed (repo-name completion, the cosmetic
  No changes. echo, and the YAGNI gc-trash prune verb).
- Removed all pre-existing em dashes from CLAUDE.md and README.

Docs only, no code change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

1 files changed, 23 insertions, 7 deletions

diff --git a/TODO.md b/TODO.md
index 7889779..9bb4ad8 100644
--- a/TODO.md
+++ b/TODO.md
@@ -65,10 +65,26 @@ leading `-y` when resolving group/action.
 
 ## Cross-cutting
 
-- Bash completion: once `repo list` exists, complete repo names for `desc`,
-  `delete`, `add-remote` (like `--section` is completed today). One ssh call,
-  only when completing a repo-name argument.
-- Skill: update both SKILL.md files (repo skills/gitctl + ~/.claude) to mention
-  delete (and its destructive, confirm-always nature) and `-y`'s real limit.
-- Tests: each new helper verb gets self-test coverage (cgit block removal is the
-  risky one - mirror the insert tests: first/middle/last/missing).
+Done as part of items 1-3: both SKILL.md files updated (delete + `-y` limit),
+self-test coverage for every new helper verb, completion actions for `list` and
+`delete`, README and CLAUDE.md brought current.
+
+## Remaining (not started)
+
+These are the leftovers after the three features shipped. None block anything.
+
+1. Repo-name bash completion. Now that `repo list` exists, complete repo NAMES
+   for `desc`, `delete`, and `add-remote` (the way `--section` is completed from
+   the server today). One ssh call (`gitctl repo list`, cut field 1), only when
+   completing the repo-name argument, so a stray Tab does not hit the network.
+
+2. Quiet the stray `No changes.` line. In `repo create` and `repo delete` the
+   `list-sections` / `add-section` helper passthrough prints a `No changes.`
+   line out of order, before the cgit-block message. Cosmetic only. Fix by
+   calling those helper steps with `quiet=True` (the flag already exists) and
+   printing a clean status, or by suppressing that specific echo.
+
+3. FUTURE / YAGNI: `gc-trash --older-than <days>` helper verb to prune
+   `TRASH_DIR` entries past a retention window, runnable from cron. The
+   timestamped trash layout already supports it; do not build until there is an
+   actual need to reclaim space.