fix: resolve UI glitches and improve consistency

- Sidebar: make +App button more subtle (lower opacity, brightens on hover)
- Sidebar: add filter chips to hide empty routes and offline/stale apps
- Sidebar: hide filter chips and +App button when sidebar is collapsed
- Exchange table: reorder columns to Status, Attributes, App, Route, Started, Duration; remove ExchangeId and Agent columns
- Exchange detail log tab: query by exchangeId only (no applicationId required), filter by processorId when processor selected
- KPI tooltips: styled tooltips with current/previous values, time period labels, percentage change, themed with DS variables
- KPI tooltips: fix overflow by left-aligning first two and right-aligning last two
- Exchange detail: show full datetime (YYYY-MM-DD HH:mm:ss.SSS) for start/end times
- Status labels: unify to title-case (Completed, Failed, Running) across all views
- Status filter buttons: match title-case labels (Completed, Warning, Failed, Running)
- Create app: show full external URL using routingDomain from env config or window.location.origin fallback
- Create app: add Runtime Type selector and Custom Arguments to Resources tab
- Create app: add Sensitive Keys tab with agent defaults, global keys, and app-specific keys (matching admin page design)
- Create app: add placeholder text to all Input fields for consistency
- Update design-system to 0.1.52 (sidebar collapse toggle fix)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/src/components/LayoutShell.module.css

@@ -62,15 +62,57 @@
   font-size: 12px;
   font-weight: 500;
   color: var(--sidebar-muted);
+  opacity: 0.45;
   cursor: pointer;
-  transition: color 0.12s, background 0.12s;
+  transition: color 0.12s, background 0.12s, opacity 0.12s;
 }
 
 .addAppBtn:hover {
+  opacity: 1;
   color: var(--amber);
   background: rgba(255, 255, 255, 0.06);
 }
 
+.sidebarFilters {
+  display: flex;
+  gap: 6px;
+  padding: 4px 12px 6px;
+}
+
+.filterChip {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  background: none;
+  border: 1px solid transparent;
+  padding: 2px 8px;
+  border-radius: 10px;
+  font-size: 11px;
+  color: var(--sidebar-muted);
+  cursor: pointer;
+  white-space: nowrap;
+  transition: color 0.12s, border-color 0.12s, background 0.12s;
+  opacity: 0.6;
+}
+
+.filterChip:hover {
+  opacity: 1;
+  color: var(--sidebar-text);
+  border-color: rgba(255, 255, 255, 0.12);
+}
+
+.filterChipActive {
+  opacity: 1;
+  color: var(--amber);
+  border-color: var(--amber);
+  background: rgba(var(--amber-rgb, 245, 158, 11), 0.08);
+}
+
+.filterChipIcon {
+  display: flex;
+  align-items: center;
+}
+
 .mainContent {
   flex: 1;
   display: flex;