chore(ui): refactor workspace to monorepo (#70)

## Summary by Sourcery

Refactor the UI project structure into a pnpm monorepo packages layout
and align tooling and automation with the new paths.

Enhancements:
- Reorganize the UI app from the root ui directory into packages/ui
within a pnpm workspace.
- Update pnpm workspace configuration to include all packages under
packages/*.
- Adjust paths in changeset configuration so the @dropout/ui package
resolves from packages/ui.

Build:
- Update pre-commit configuration paths and arguments to reflect the new
UI location and normalize hook argument formatting.
- Update Dependabot configuration so npm updates target /packages/ui
instead of /ui.

CI:
- Update GitHub Actions workflows to watch packages/** instead of ui/**
and to run frontend tasks from packages/ui.
- Update pnpm cache dependency paths in workflows to use the root
pnpm-lock.yaml.
- Simplify frontend install steps in test workflows to run from the
repository root.

Chores:
- Add a new index.html under packages/ui and remove the old
ui/index.html to match the new project layout.

1 files changed, 0 insertions, 32 deletions

diff --git a/ui/src/stores/ui.svelte.ts b/ui/src/stores/ui.svelte.ts
deleted file mode 100644
index e88f6b4..0000000
--- a/ui/src/stores/ui.svelte.ts
+++ /dev/null
@@ -1,32 +0,0 @@
-import { type ViewType } from "../types";
-
-export class UIState {
-  currentView: ViewType = $state("home");
-  status = $state("Ready");
-  showConsole = $state(false);
-  appVersion = $state("...");
-
-  private statusTimeout: ReturnType<typeof setTimeout> | null = null;
-
-  setStatus(msg: string) {
-    if (this.statusTimeout) clearTimeout(this.statusTimeout);
-
-    this.status = msg;
-
-    if (msg !== "Ready") {
-      this.statusTimeout = setTimeout(() => {
-        this.status = "Ready";
-      }, 5000);
-    }
-  }
-
-  toggleConsole() {
-    this.showConsole = !this.showConsole;
-  }
-
-  setView(view: ViewType) {
-    this.currentView = view;
-  }
-}
-
-export const uiState = new UIState();