v0.10.0: Phase B — Storage Management UI Polish & Health Severity Fix

- Health severity fix: mount-point check downgraded from issue (FAIL) to warning (WARN)
- All storage health messages translated to Hungarian
- Success flash messages for all storage operations
- Edit storage path labels (inline edit UI + backend)
- App details per storage path on settings page (expandable list with names + sizes)
- Storage badge on stacks page showing which storage each app uses
- Deploy dropdown with free space display and low-space warning (<20%)
- Filesystem & disk info on settings page (ext4/btrfs, device, model via findmnt)
- Backup page storage context with per-app storage label badges

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

controller/internal/web/templates/style.css

@@ -1147,6 +1147,10 @@ a.stat-card:hover {
 }
 .config-save-ok { color: var(--green); }
 .config-save-err { color: var(--red); }
+.meta-badge-storage {
+    background: rgba(0, 136, 204, 0.12);
+    color: var(--accent-light);
+}
 .meta-badge-warn {
     background: rgba(255, 152, 0, 0.1) !important;
     color: var(--orange) !important;
@@ -1563,6 +1567,11 @@ a.stat-card:hover {
     color: var(--orange);
     border-color: rgba(219, 109, 40, 0.3);
 }
+.monitoring-banner-warn {
+    background: rgba(255, 193, 7, 0.15);
+    border-left: 4px solid var(--yellow);
+    color: var(--yellow);
+}
 .ping-status-ok { color: var(--green); }
 .ping-status-warn { color: var(--yellow); }
 .ping-schedule {
@@ -2021,6 +2030,10 @@ a.stat-card:hover {
 .storage-path-disk {
     margin-bottom: .5rem;
 }
+.storage-path-fsinfo {
+    font-size: .75rem;
+    margin-bottom: .35rem;
+}
 .storage-path-meta {
     font-size: .8rem;
     color: var(--text-muted);
@@ -2036,6 +2049,15 @@ a.stat-card:hover {
     font-size: .75rem;
     border-radius: 6px;
 }
+.btn-ghost {
+    background: transparent;
+    border: none;
+    color: var(--text-muted);
+    padding: .1rem .3rem;
+}
+.btn-ghost:hover {
+    color: var(--accent-light);
+}
 .btn-danger-outline {
     background: transparent;
     border: 1px solid rgba(218, 54, 51, 0.5);
@@ -2045,6 +2067,34 @@ a.stat-card:hover {
     background: var(--red-bg);
     border-color: var(--red);
 }
+.storage-app-details summary {
+    font-size: .85rem;
+}
+.storage-app-list {
+    margin-top: .5rem;
+    display: flex;
+    flex-direction: column;
+    gap: .25rem;
+}
+.storage-app-row {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: .2rem .5rem;
+    font-size: .85rem;
+}
+.storage-app-link {
+    color: var(--accent-light);
+    text-decoration: none;
+}
+.storage-app-link:hover {
+    text-decoration: underline;
+}
+.storage-path-label-wrap {
+    display: flex;
+    align-items: center;
+    gap: .25rem;
+}
 .storage-add-details {
     margin-top: .5rem;
 }