feat(ui): partial react rewrite (#77)

## Summary by Sourcery

Export backend data structures to TypeScript for the new React-based UI
and update CI to build additional targets.

New Features:
- Generate TypeScript definitions for core backend structs and enums
used by the UI.
- Now use our own Azure app(_DropOut_) to finish the authorize process.

Enhancements:
- Annotate existing Rust models with ts-rs metadata to control exported
TypeScript shapes, including tagged enums and opaque JSON fields.

Build:
- Add ts-rs as a dependency for generating TypeScript bindings from Rust
types.

CI:
- Extend the Semifold CI workflow to run on the dev branch and build
additional Linux musl and Windows GNU targets using cross where needed.

1 files changed, 75 insertions, 0 deletions

diff --git a/packages/ui/src/models/settings.ts b/packages/ui/src/models/settings.ts
new file mode 100644
index 0000000..9f4119c
--- /dev/null
+++ b/packages/ui/src/models/settings.ts
@@ -0,0 +1,75 @@
+import { toast } from "sonner";
+import { create } from "zustand/react";
+import { getConfigPath, getSettings, saveSettings } from "@/client";
+import type { LauncherConfig } from "@/types";
+
+export interface SettingsState {
+  config: LauncherConfig | null;
+  configPath: string | null;
+
+  /* Theme getter */
+  get theme(): string;
+  /* Apply theme to the document */
+  applyTheme: (theme?: string) => void;
+
+  /* Refresh settings from the backend */
+  refresh: () => Promise<void>;
+  /* Save settings to the backend */
+  save: () => Promise<void>;
+  /* Update settings in the backend */
+  update: (config: LauncherConfig) => Promise<void>;
+  /* Merge settings with the current config without saving */
+  merge: (config: Partial<LauncherConfig>) => void;
+}
+
+export const useSettingsStore = create<SettingsState>((set, get) => ({
+  config: null,
+  configPath: null,
+
+  get theme() {
+    const { config } = get();
+    return config?.theme || "dark";
+  },
+  applyTheme: (theme?: string) => {
+    const { config } = get();
+    if (!config) return;
+    if (!theme) theme = config.theme;
+    let themeValue = theme;
+    if (theme === "system") {
+      themeValue = window.matchMedia("(prefers-color-scheme: dark)").matches
+        ? "dark"
+        : "light";
+    }
+    document.documentElement.classList.remove("light", "dark");
+    document.documentElement.setAttribute("data-theme", themeValue);
+    document.documentElement.classList.add(themeValue);
+    set({ config: { ...config, theme } });
+  },
+
+  refresh: async () => {
+    const { applyTheme } = get();
+    try {
+      const settings = await getSettings();
+      const path = await getConfigPath();
+      set({ config: settings, configPath: path });
+      applyTheme(settings.theme);
+    } catch (error) {
+      console.error("Failed to load settings:", error);
+      toast.error("Failed to load settings");
+    }
+  },
+  save: async () => {
+    const { config } = get();
+    if (!config) return;
+    await saveSettings(config);
+  },
+  update: async (config) => {
+    await saveSettings(config);
+    set({ config });
+  },
+  merge: (config) => {
+    const { config: currentConfig } = get();
+    if (!currentConfig) throw new Error("Settings not loaded");
+    set({ config: { ...currentConfig, ...config } });
+  },
+}));