Keep the task board, notes and agent instructions out of the repo

They stay on the owner's machine: .kandown/, tasks/, docs/kandown.md, NOTES.md, CLAUDE.md and
AGENTS.md are ignored, and the README and project map say so.

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

.gitignore

@@ -6,5 +6,10 @@ node_modules/
 .DS_Store
 .venv/
 
-# kandown web app: one 6.5 MB file that `kandown init` / `kandown update` regenerate
-.kandown/kandown.html
+# kept on this machine only: the kandown task board, the old notes inbox and agent instructions
+.kandown/
+tasks/
+docs/kandown.md
+NOTES.md
+CLAUDE.md
+AGENTS.md

README.md

@@ -60,9 +60,6 @@ The source is small JavaScript files with no dependencies or bundler:
 
 ## Documents
 
-- `AGENTS.md` / `CLAUDE.md`: how coding agents work on this project.
-- `tasks/`: the to-do list, a [kandown](https://kandown.dev) board (`kandown` opens it; see
-  `docs/kandown.md`).
 - `docs/PROJECT_MAP.md`: where everything is.
 - `docs/DESIGN.md`: what the game is meant to be, and the decisions made.
 - `docs/TESTING.md`: tests, screenshots and pitfalls.

docs/PROJECT_MAP.md

@@ -8,8 +8,8 @@ top part by hand when the structure changes.
 ## Layout
 
 ```
-AGENTS.md, CLAUDE.md  instructions for coding agents
-tasks/, .kandown/     the owner's to-do list: a kandown board (docs/kandown.md)
+AGENTS.md, CLAUDE.md  instructions for coding agents (local only, not in git)
+tasks/, .kandown/     the owner's to-do list: a kandown board (docs/kandown.md; local only, not in git)
 build.py              joins src/ into dist/index.html (one self-contained page)
 src/manifest.json     the build order: simulation files, then browser files
 src/shell.html        page markup (HUD, menus, dialogs); CSS and JS are put in at the markers