feat: add theme provider and control components for light/dark mode

- Implemented ThemeProvider to manage theme state and preferences.
- Added ThemeControl component for users to switch between system, light, and dark themes.
- Integrated localStorage for theme preference persistence.
- Updated document styles based on theme changes.

test: add tests for permanent deletion of habits and related records

- Created tests to ensure permanent deletion of habits removes all dependent records.
- Verified that deletion requires ownership, authentication, and checks for archived habits.
- Added tests to confirm rollback behavior on deletion failures.

test: add tests for habit palette and progress card functionality

- Implemented tests for habit color progression and theme-based color shading.
- Added tests for progress card calculations and calendar display logic.

feat: define theme types and preferences

- Introduced Theme and ThemePreference types for better type safety.
- Created utility functions for resolving theme based on user preference and system settings.
- Defined theme palettes for light and dark modes to ensure adequate contrast.

scripts/dashboard-preview.ts

@@ -6,7 +6,8 @@ import { createApi } from "../src/api";
 import index from "../src/index.html";
 
 const f = fixture();
-const origin = "http://127.0.0.1:3107";
+const port = Number(process.env.PREVIEW_PORT ?? 3107);
+const origin = `http://127.0.0.1:${port}`;
 const previewCookie = "minabot_dashboard_preview_session";
 const sharingPreview = process.env.SHARE_PREVIEW === "1";
 let sharedImage: Blob | null = null;
@@ -52,7 +53,7 @@ if (sharingPreview) setInterval(async () => {
 }, 1000).unref();
 const server = Bun.serve({
   hostname: "127.0.0.1",
-  port: 3107,
+  port,
   routes: {
     "/__preview/reminder": () => new Response(reminderMessage ?? "No reminder sent"),
     "/__preview/shared-image": () => sharingPreview && sharedImage ? new Response(sharedImage) : new Response(null, { status: 404 }),