Move the to-do list from NOTES.md to a kandown board

Each note is a task in tasks/ with the owner's words under ## Context; the
board rules are in .kandown/kandown_work.md and docs/kandown.md explains how
kandown works here.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/agent-log.md

@@ -4,6 +4,32 @@ What agents have done, newest first. Add an entry for every piece of work: the d
 note or request it was for, what changed, the files touched, the tests run, and anything left
 open or not verified. Keep each entry short; the git history has the details.
 
+## 2026-10-24: the to-do list moved from NOTES.md to a kandown board (Claude Code)
+
+Request: initialize kandown (https://kandown.dev, 0.52.0) for the project, move all the notes
+into it, and document how it works.
+
+- Practised first in a scratch folder: `init --no-open` starts no daemon and makes no sample tasks
+  when `tasks/` exists; `create` prints only the id and names the file `<id>_<slug>.md`; a
+  multi-line `report: |` block is read (checked in kandown's parser) and `doctor` accepts it;
+  `list --json` doesn't include `report`; project instructions in `.kandown/kandown_work.md`
+  appear in `kandown work` (~1,100 tokens).
+- A mistake on the way: `kandown init --help` ran `init` in the vault (it ignores `--help`) and
+  started a daemon there. Stopped it, and removed the vault's earlier kandown test files as the
+  owner asked. `docs/kandown.md` warns about it.
+- `kandown init --no-open` in the repo. `.kandown/kandown.json`: default columns, Review's
+  instructions say only the owner moves work to Done, tags and priority shown. `.gitignore`:
+  `.kandown/kandown.html` (6.5 MB, regenerated).
+- 14 notes became tasks t1-t14 (Todo: 6 tasks; Backlog: 5 tagged `discussion`, 3 tagged
+  `idea`), each with the owner's note word for word under `## Context` (checked by script: 14 of
+  14). `kandown doctor` is clean.
+- `.kandown/kandown_work.md` holds the board rules (from AGENTS.md's old NOTES section);
+  `docs/kandown.md` explains how kandown works here. `AGENTS.md` (session start, a new "Working
+  from the task board" section linking both), `CLAUDE.md`, `README.md`, `docs/PROJECT_MAP.md`,
+  `docs/DESIGN.md` (decision). `NOTES.md` removed.
+- `kandown list` and `kandown doctor` checked inside Codex's sandbox: they work.
+- Open: the web board (`kandown`) wasn't opened here; the owner uses it.
+
 ## 2026-10-24: several worlds, with a Worlds list (Claude Code, with Codex)
 
 Note: "support multiple saves". The owner chose a world list.