chore: sync all local changes and new files

- Update next.config.ts
- Add netlify.toml, Docker configs, e2e tests
- Add env templates, docs (README, ROADMAP, TODO)
- Add vitest/playwright test configs
- Add component and lib tests
- Add install script, portainer env template
- Update .gitignore (tsbuildinfo, deno.lock, dev.db)

playwright.config.ts

@@ -0,0 +1,26 @@
+import { defineConfig, devices } from '@playwright/test';
+
+export default defineConfig({
+  testDir: './e2e',
+  fullyParallel: true,
+  forbidOnly: !!process.env.CI,
+  retries: 2,
+  workers: process.env.CI ? 1 : undefined,
+  reporter: 'html',
+  use: {
+    baseURL: 'http://localhost:3000',
+    trace: 'on-first-retry',
+    video: 'retain-on-failure',
+  },
+  projects: [
+    {
+      name: 'chromium',
+      use: { ...devices['Desktop Chrome'] },
+    },
+  ],
+  webServer: {
+    command: 'npm run dev',
+    url: 'http://localhost:3000',
+    reuseExistingServer: !process.env.CI,
+  },
+});