feat: Armarium v1.1.0 — dashboard, auth, 2FA, SMTP, settings, deploy

Dashboard:
- ApexCharts bar chart (income vs fixed costs vs expenses) and donut chart
- KPI cards: income, fixed costs, savings rate with configurable goal
- Greeting with time-of-day and locale-aware date/time display

Authentication & security:
- Email-based login (no username), case-insensitive lookup
- JWT access/refresh tokens with rotation and blacklist
- TOTP 2FA with QR code, backup codes (copy + PDF export)
- 2FA recovery via email code
- Cloudflare Turnstile CAPTCHA on login and register

Email flows:
- Email verification on registration (24h token)
- Password reset flow (15min token, anti-enumeration)
- Brevo SMTP integration with HTML + plaintext email templates
- Notification emails: 2FA recovery, password changed, email changed

Settings page:
- 2FA management (enable/disable, QR, backup codes)
- Active sessions list with per-device revoke
- Data export: ZIP with 6 PDFs via fpdf2
- Notification preferences (3 toggles)
- Danger zone: account deletion with mandatory export + confirmation phrase

UI & layout:
- Sidebar with collapsible/flyout mode, Angular signal-based dropdowns
- Dark mode (class-based), language switcher (DE/FR/IT/EN)
- Mobile-responsive layout with touch-friendly targets
- Roboto font via @fontsource (GDPR-compliant, no Google CDN)
- Pure Tailwind CSS v3

Infrastructure:
- Forgejo Actions CI/CD pipeline (auto-deploy on push to main)
- Gunicorn + Nginx + PostgreSQL production setup
- Rate limiting, HSTS, secure cookies, CSRF protection

frontend/tailwind.config.js

@@ -0,0 +1,34 @@
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  darkMode: 'class',
+  content: [
+    "./src/**/*.{html,ts}",
+  ],
+  safelist: [
+    'w-16',
+    'w-64',
+    'ml-16',
+    'ml-64',
+    '-translate-x-full',
+  ],
+  theme: {
+    extend: {
+      fontFamily: {
+        sans: ['Roboto', 'ui-sans-serif', 'system-ui', '-apple-system', 'Helvetica Neue', 'Arial', 'sans-serif'],
+      },
+      fontSize: {
+        // Tooltips / Helper Text
+        '2xs': ['0.6875rem', { lineHeight: '1rem' }],      // 11px
+        'xs':  ['0.75rem',   { lineHeight: '1rem' }],      // 12px  Labels/Captions
+        // Body / Buttons / Navigation
+        'sm':  ['0.875rem',  { lineHeight: '1.375rem' }],  // 14px  Desktop standard
+        'base':['0.9375rem', { lineHeight: '1.5rem' }],    // 15px  Mobile Body
+        // Headings
+        'h3':  ['1.125rem',  { lineHeight: '1.75rem' }],   // 18px
+        'h2':  ['1.375rem',  { lineHeight: '2rem' }],      // 22px
+        'h1':  ['1.75rem',   { lineHeight: '2.25rem' }],   // 28px  Desktop
+      },
+    },
+  },
+  plugins: [],
+}