refactor: remove login landing page, redirect to Keycloak directly

Unauthenticated users are now redirected straight to /auth (Keycloak)
instead of seeing a custom landing page. Removed LoginPage component
and all associated CSS.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

assets/main.css

@@ -392,147 +392,6 @@ tr:hover {
     }
 }
 
-/* Login Page */
-.login-page {
-    position: relative;
-    min-height: 100vh;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    background: var(--bg-primary);
-    overflow: hidden;
-}
-
-.login-bg-grid {
-    position: absolute;
-    inset: 0;
-    background-image:
-        linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
-        linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
-    background-size: 60px 60px;
-    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
-    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
-}
-
-.login-bg-glow {
-    position: absolute;
-    top: -200px;
-    left: 50%;
-    transform: translateX(-50%);
-    width: 600px;
-    height: 600px;
-    background: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, transparent 70%);
-    pointer-events: none;
-}
-
-.login-container {
-    position: relative;
-    z-index: 1;
-    width: 100%;
-    max-width: 440px;
-    padding: 20px;
-}
-
-.login-card {
-    background: var(--bg-secondary);
-    border: 1px solid var(--border);
-    border-radius: 20px;
-    padding: 48px 40px;
-    text-align: center;
-    box-shadow:
-        0 0 0 1px rgba(56, 189, 248, 0.05),
-        0 20px 50px -12px rgba(0, 0, 0, 0.5);
-}
-
-.login-logo {
-    display: inline-flex;
-    align-items: center;
-    justify-content: center;
-    width: 80px;
-    height: 80px;
-    border-radius: 20px;
-    background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(56, 189, 248, 0.05));
-    border: 1px solid rgba(56, 189, 248, 0.2);
-    color: var(--accent);
-    margin-bottom: 24px;
-}
-
-.login-title {
-    font-size: 26px;
-    font-weight: 700;
-    color: var(--text-primary);
-    margin-bottom: 8px;
-    letter-spacing: -0.02em;
-}
-
-.login-subtitle {
-    font-size: 14px;
-    color: var(--text-secondary);
-    line-height: 1.6;
-    margin-bottom: 32px;
-}
-
-.login-features {
-    display: grid;
-    grid-template-columns: 1fr 1fr;
-    gap: 10px;
-    margin-bottom: 32px;
-    text-align: left;
-}
-
-.login-feature {
-    display: flex;
-    align-items: center;
-    gap: 8px;
-    font-size: 13px;
-    color: var(--text-secondary);
-    padding: 8px 12px;
-    background: rgba(56, 189, 248, 0.04);
-    border-radius: 8px;
-    border: 1px solid rgba(56, 189, 248, 0.06);
-}
-
-.login-feature-icon {
-    color: var(--accent);
-    font-size: 8px;
-    flex-shrink: 0;
-}
-
-.login-button {
-    display: inline-flex;
-    align-items: center;
-    justify-content: center;
-    gap: 10px;
-    width: 100%;
-    padding: 14px 24px;
-    background: linear-gradient(135deg, var(--accent), #0ea5e9);
-    color: #0f172a;
-    font-size: 15px;
-    font-weight: 600;
-    border: none;
-    border-radius: 12px;
-    cursor: pointer;
-    text-decoration: none;
-    transition: all 0.2s;
-    box-shadow: 0 4px 16px rgba(56, 189, 248, 0.25);
-}
-
-.login-button:hover {
-    background: linear-gradient(135deg, var(--accent-hover), #38bdf8);
-    box-shadow: 0 6px 24px rgba(56, 189, 248, 0.35);
-    transform: translateY(-1px);
-}
-
-.login-button:active {
-    transform: translateY(0);
-}
-
-.login-footer {
-    margin-top: 20px;
-    font-size: 12px;
-    color: var(--text-secondary);
-    opacity: 0.6;
-}
 
 /* ── Utility classes ────────────────────────────────────── */