chore: revert README.md changes and remove CONTRIBUTING.md

README keyboard shortcuts were reformatted by a sub-agent — not our change
to own. CONTRIBUTING.md was created by a sub-agent but this isn't our repo
to add docs like that.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: brooksc

CONTRIBUTING.md

@@ -138,30 +138,30 @@ Requires [Node.js](https://nodejs.org/) v18+.
 
 `Ctrl` = `Cmd` on macOS.
 
-| Shortcut              | Action                             |
-| --------------------- | ---------------------------------- |
-| **Tasks**             |                                    |
-| `Ctrl+N`              | New task                           |
-| `Ctrl+Shift+A`        | New task (alternative)             |
-| `Ctrl+Enter`          | Send prompt                        |
-| `Ctrl+Shift+M`        | Merge task to main                 |
-| `Ctrl+Shift+P`        | Push to remote                     |
-| `Ctrl+W`              | Close focused terminal session     |
-| `Ctrl+Shift+W`        | Close active task                  |
-| **Navigation**        |                                    |
-| `Alt+Arrows`          | Focus pane/task in arrow direction |
-| `Ctrl+Alt+Left/Right` | Move task left/right               |
-| `Ctrl+B`              | Toggle sidebar                     |
-| `Ctrl+Shift+F`        | Toggle focus mode                  |
-| **Terminals**         |                                    |
-| `Ctrl+Shift+T`        | New shell terminal                 |
-| `Ctrl+Shift+D`        | New standalone terminal            |
-| **App**               |                                    |
-| `Ctrl+,`              | Open settings                      |
-| `Ctrl+/` or `F1`      | Show all shortcuts                 |
-| `Ctrl+0`              | Reset zoom                         |
-| `Ctrl+Scroll`         | Adjust zoom                        |
-| `Escape`              | Close dialog                       |
+| Shortcut              | Action                         |
+| --------------------- | ------------------------------ |
+| **Tasks**             |                                |
+| `Ctrl+N`              | New task                       |
+| `Ctrl+Shift+A`        | New task (alternative)         |
+| `Ctrl+Enter`          | Send prompt                    |
+| `Ctrl+Shift+M`        | Merge task to main             |
+| `Ctrl+Shift+P`        | Push to remote                 |
+| `Ctrl+W`              | Close focused terminal session |
+| `Ctrl+Shift+W`        | Close active task              |
+| **Navigation**        |                                |
+| `Alt+Arrows`          | Navigate between panels        |
+| `Ctrl+Alt+Left/Right` | Reorder active task            |
+| `Ctrl+B`              | Toggle sidebar                 |
+| `Ctrl+Shift+F`        | Toggle focus mode              |
+| **Terminals**         |                                |
+| `Ctrl+Shift+T`        | New shell terminal             |
+| `Ctrl+Shift+D`        | New standalone terminal        |
+| **App**               |                                |
+| `Ctrl+,`              | Open settings                  |
+| `Ctrl+/` or `F1`      | Show all shortcuts             |
+| `Ctrl+0`              | Reset zoom                     |
+| `Ctrl+Scroll`         | Adjust zoom                    |
+| `Escape`              | Close dialog                   |
 
 </details>