feat: notification center frontend core (PR-3)

- Bell icon in icon registry (Phosphor Bell)
- NotificationProvider context with polling (15s unread / 30s list)
- useNotifications() hook with optimistic updates
- NotificationCenter component: bell + badge + dropdown panel
- NotificationItem component: severity icon, title, relative time, actions
- AppShell integration: mount in header-actions, hidden on mobile
- CSS styles: dropdown, items, unread/read states, empty state
- formatRelativeTime utility (custom, no new deps)
- 25 frontend tests (9 hook + 6 item + 10 center)

Quality gates: vitest 25 passed, tsc clean, eslint clean
This commit is contained in:
2026-05-29 13:14:50 +02:00
parent cbd3436ff7
commit 2bec205a30
15 changed files with 1974 additions and 402 deletions
+202
View File
@@ -4510,6 +4510,208 @@ a:active,
margin-top: 0.25rem;
}
/* Notification Center */
.notification-center {
position: relative;
display: inline-flex;
}
.notification-bell {
position: relative;
display: flex;
align-items: center;
justify-content: center;
padding: 0.4rem;
background: transparent;
border: none;
border-radius: 8px;
color: var(--muted);
cursor: pointer;
transition:
background-color 0.15s ease,
color 0.15s ease;
min-height: 36px;
min-width: 36px;
}
.notification-bell:hover {
background: var(--bg);
color: var(--ink);
}
.notification-badge {
position: absolute;
top: -2px;
right: -4px;
min-width: 18px;
height: 18px;
padding: 0 5px;
background: var(--danger);
color: white;
border-radius: 9px;
font-size: 11px;
font-weight: 600;
display: inline-flex;
align-items: center;
justify-content: center;
}
.notification-dropdown {
position: absolute;
top: calc(100% + 6px);
right: 0;
width: 360px;
max-width: calc(100vw - 2rem);
max-height: 480px;
background: var(--panel);
border: 1px solid var(--border);
border-radius: 12px;
box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
z-index: 100;
display: flex;
flex-direction: column;
overflow: hidden;
}
.notification-dropdown-header {
padding: 0.75rem 1rem;
font-weight: 600;
font-size: 0.95rem;
border-bottom: 1px solid var(--border);
color: var(--ink);
flex-shrink: 0;
}
.notification-list {
list-style: none;
margin: 0;
padding: 0;
overflow-y: auto;
flex: 1;
min-height: 0;
}
.notification-empty {
padding: 2rem 1rem;
text-align: center;
color: var(--muted);
font-size: 0.9rem;
}
.notification-dropdown-footer {
padding: 0.75rem 1rem;
border-top: 1px solid var(--border);
flex-shrink: 0;
}
.notification-mark-all {
width: 100%;
padding: 0.5rem 0.75rem;
background: transparent;
border: 1px solid var(--border);
border-radius: 8px;
color: var(--muted);
font: inherit;
font-size: 0.85rem;
cursor: pointer;
transition: all 0.15s ease;
}
.notification-mark-all:hover {
background: var(--bg);
color: var(--ink);
border-color: var(--brand);
}
/* Notification Item */
.notification-item {
display: flex;
align-items: flex-start;
gap: 0.75rem;
padding: 0.75rem 1rem;
border-bottom: 1px solid var(--border);
transition: background-color 0.15s ease;
}
.notification-item:last-child {
border-bottom: none;
}
.notification-item:hover {
background: var(--bg);
}
.notification-item--unread {
font-weight: 500;
border-left: 3px solid var(--brand);
padding-left: calc(1rem - 3px);
background: color-mix(in srgb, var(--brand) 4%, var(--panel));
}
.notification-item--read {
opacity: 0.75;
}
.notification-item-icon {
flex-shrink: 0;
margin-top: 0.1rem;
color: var(--muted);
}
.notification-item-content {
flex: 1;
min-width: 0;
display: flex;
flex-direction: column;
gap: 0.2rem;
}
.notification-item-title {
font-size: 0.9rem;
line-height: 1.3;
color: var(--ink);
}
.notification-item--read .notification-item-title {
font-weight: 400;
}
.notification-item-time {
font-size: 0.8rem;
color: var(--muted);
}
.notification-item-actions {
display: flex;
gap: 0.35rem;
flex-shrink: 0;
}
.notification-item-action {
padding: 0.25rem 0.5rem;
background: transparent;
border: none;
border-radius: 6px;
color: var(--muted);
font: inherit;
font-size: 0.75rem;
cursor: pointer;
transition: all 0.15s ease;
white-space: nowrap;
}
.notification-item-action:hover {
background: var(--bg);
color: var(--ink);
}
@media (max-width: 767px) {
.notification-dropdown {
width: calc(100vw - 2rem);
max-width: 360px;
}
}
/* Toast animations */
@keyframes toastSlideIn {
from {