feat(providers): add Pi coding agent

.github/workflows/ci.yml

@@ -75,6 +75,16 @@ jobs:
             !/.repos/
           sparse-checkout-cone-mode: false
 
+      # Blacksmith boots GitHub's Ubuntu runner image (gcc is usually present),
+      # but ACP process-tree live tests compile a small pthread fixture with `cc`
+      # and soft-skip when it is missing. Install build-essential so that path
+      # always runs in CI instead of silently no-oping.
+      - name: Install C toolchain for process-tree fixtures
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends build-essential
+          command -v cc
+
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
         with:

README.md

@@ -79,6 +79,7 @@ Full docs live in [docs/](./docs). There's no docs site yet.
 - [Permission modes](./docs/user/permission-modes.md)
 - [Keyboard shortcuts](./docs/user/keybindings.md)
 - [Customize a project icon](./docs/user/project-settings.md)
+- [Appearance preferences](./docs/user/appearance.md)
 - [Remote access from a phone or another machine](./docs/user/remote-access.md)
 - [Keeping app and server in sync](./docs/user/updating.md)
 - [Source control integrations](./docs/user/source-control.md)