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>

.kandown/README.md

@@ -0,0 +1,56 @@
+# Kandown
+
+File-based kanban for this project. Zero install, zero backend, plain markdown on disk.
+
+## Layout
+
+```
+.kandown/             # config, web UI, workflows, skills
+├── kandown.html      # single-file web app — open this in your browser
+├── kandown.json      # project preferences, columns, appearance
+├── kandown_work.md   # optional project agent instructions
+├── workflows/        # optional local workflow packages
+├── skills/           # optional local Markdown skill packages
+└── README.md         # this file
+
+tasks/                # source of truth — one .md file per task
+├── t1.md
+├── t2.md
+└── archive/          # archived tasks live here
+```
+
+## Usage
+
+1. Open `.kandown/kandown.html` in Chrome, Edge, Brave or Opera (File System Access API required)
+2. Click **Select folder** and pick the **project root** (the parent of `.kandown/`), then grant read/write permission
+3. That's it
+
+The app remembers the last 10 projects you've opened — no need to re-select the folder each time.
+
+## Settings
+
+Open Settings from the app header to tune this project. Board columns are stored in `.kandown/kandown.json` at `board.columns`. Each task chooses a column with its frontmatter `status`.
+
+## Editing without the app
+
+Everything is plain markdown. Edit files directly in your IDE, Obsidian, or vim. Click **Reload** in the app (or press `R`) to see changes.
+
+The task editor includes a markdown-backed subtask checklist. Add steps with **Add subtask**, press **Enter** to insert another step, and expand a step to edit its description or report. Changes are saved back to the task file automatically.
+
+## For AI agents
+
+Run `kandown work` for the current agent protocol and live board context. Each task file in `tasks/` is its own source of truth. Moving a task means editing its frontmatter `status`.
+
+## Keyboard shortcuts
+
+| Key | Action |
+|---|---|
+| `⌘K` / `Ctrl+K` | Command palette |
+| `⌘1` / `Ctrl+1` | Board view |
+| `⌘2` / `Ctrl+2` | List view |
+| `N` | New task |
+| `R` | Reload |
+| `/` | Focus search |
+| `Esc` | Close drawer / palette |
+| `⌘S` | Save current task |
+| `⌘⌫` | Delete task (with confirmation) |