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, 126 insertions, 0 deletions

diff --git a/packages/ui/src/index.css b/packages/ui/src/index.css
new file mode 100644
index 0000000..8803e5e
--- /dev/null
+++ b/packages/ui/src/index.css
@@ -0,0 +1,126 @@
+@import "tailwindcss";
+@import "tw-animate-css";
+@import "shadcn/tailwind.css";
+
+@custom-variant dark (&:is(.dark *));
+
+@theme inline {
+  --radius-sm: calc(var(--radius) - 4px);
+  --radius-md: calc(var(--radius) - 2px);
+  --radius-lg: var(--radius);
+  --radius-xl: calc(var(--radius) + 4px);
+  --radius-2xl: calc(var(--radius) + 8px);
+  --radius-3xl: calc(var(--radius) + 12px);
+  --radius-4xl: calc(var(--radius) + 16px);
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --color-card: var(--card);
+  --color-card-foreground: var(--card-foreground);
+  --color-popover: var(--popover);
+  --color-popover-foreground: var(--popover-foreground);
+  --color-primary: var(--primary);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-secondary: var(--secondary);
+  --color-secondary-foreground: var(--secondary-foreground);
+  --color-muted: var(--muted);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-accent: var(--accent);
+  --color-accent-foreground: var(--accent-foreground);
+  --color-destructive: var(--destructive);
+  --color-border: var(--border);
+  --color-input: var(--input);
+  --color-ring: var(--ring);
+  --color-chart-1: var(--chart-1);
+  --color-chart-2: var(--chart-2);
+  --color-chart-3: var(--chart-3);
+  --color-chart-4: var(--chart-4);
+  --color-chart-5: var(--chart-5);
+  --color-sidebar: var(--sidebar);
+  --color-sidebar-foreground: var(--sidebar-foreground);
+  --color-sidebar-primary: var(--sidebar-primary);
+  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
+  --color-sidebar-accent: var(--sidebar-accent);
+  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
+  --color-sidebar-border: var(--sidebar-border);
+  --color-sidebar-ring: var(--sidebar-ring);
+}
+
+:root {
+  --radius: 0.625rem;
+  --background: #f3f4f6; /* bg-gray-100 */
+  --foreground: #18181b; /* zinc-900 */
+  --card: #ffffff;
+  --card-foreground: #18181b;
+  --popover: #ffffff;
+  --popover-foreground: #18181b;
+  --primary: #4f46e5; /* indigo-600 */
+  --primary-foreground: #ffffff;
+  --secondary: #f4f4f5; /* zinc-100 */
+  --secondary-foreground: #18181b;
+  --muted: #f4f4f5; /* zinc-100 */
+  --muted-foreground: #71717a; /* zinc-500 */
+  --accent: #f4f4f5; /* zinc-100 */
+  --accent-foreground: #18181b;
+  --destructive: #ef4444; /* red-500 */
+  --destructive-foreground: #ffffff;
+  --border: #e4e4e7; /* zinc-200 */
+  --input: #ffffff;
+  --ring: #6366f1; /* indigo-500 */
+  --chart-1: #059669; /* emerald-600 */
+  --chart-2: #0d9488; /* teal-600 */
+  --chart-3: #4f46e5; /* indigo-600 */
+  --chart-4: #7c3aed; /* violet-600 */
+  --chart-5: #dc2626; /* red-600 */
+  --sidebar: #ffffff;
+  --sidebar-foreground: #18181b;
+  --sidebar-primary: #4f46e5; /* indigo-600 */
+  --sidebar-primary-foreground: #ffffff;
+  --sidebar-accent: #f4f4f5; /* zinc-100 */
+  --sidebar-accent-foreground: #18181b;
+  --sidebar-border: #e4e4e7; /* zinc-200 */
+  --sidebar-ring: #6366f1; /* indigo-500 */
+}
+
+.dark {
+  --background: #09090b;
+  --foreground: #fafafa; /* zinc-50 */
+  --card: #18181b; /* zinc-900 */
+  --card-foreground: #fafafa;
+  --popover: #18181b;
+  --popover-foreground: #fafafa;
+  --primary: #6366f1; /* indigo-500 */
+  --primary-foreground: #ffffff;
+  --secondary: #27272a; /* zinc-800 */
+  --secondary-foreground: #fafafa;
+  --muted: #27272a; /* zinc-800 */
+  --muted-foreground: #a1a1aa; /* zinc-400 */
+  --accent: #27272a; /* zinc-800 */
+  --accent-foreground: #fafafa;
+  --destructive: #f87171; /* red-400 */
+  --destructive-foreground: #ffffff;
+  --border: #3f3f46; /* zinc-700 */
+  --input: rgba(255, 255, 255, 0.15);
+  --ring: #6366f1; /* indigo-500 */
+  --chart-1: #10b981; /* emerald-500 */
+  --chart-2: #06b6d4; /* cyan-500 */
+  --chart-3: #6366f1; /* indigo-500 */
+  --chart-4: #8b5cf6; /* violet-500 */
+  --chart-5: #f87171; /* red-400 */
+  --sidebar: #09090b;
+  --sidebar-foreground: #fafafa;
+  --sidebar-primary: #6366f1; /* indigo-500 */
+  --sidebar-primary-foreground: #ffffff;
+  --sidebar-accent: #27272a; /* zinc-800 */
+  --sidebar-accent-foreground: #fafafa;
+  --sidebar-border: #3f3f46; /* zinc-700 */
+  --sidebar-ring: #6366f1; /* indigo-500 */
+}
+
+@layer base {
+  * {
+    @apply border-border outline-ring/50;
+  }
+  body {
+    @apply bg-background text-foreground;
+  }
+}