refactor(ui): drawer CSS module + narrow LogsPanel memo deps

Extract 14 inline style blocks from CheckpointDetailDrawer index.tsx and
LogsPanel.tsx into a shared CSS module using DS CSS variables throughout.
Narrow the LogsPanel useMemo dep array from the full deployment object to
deployment.id + deployment.replicaStates to prevent spurious query
invalidation on every TanStack Query poll.

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

ui/src/pages/AppsTab/AppDeploymentPage/CheckpointDetailDrawer/CheckpointDetailDrawer.module.css

@@ -0,0 +1,65 @@
+/* index.tsx */
+.titleRow {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.titleJar {
+  font-family: monospace;
+  font-size: 13px;
+}
+
+.statusPill {
+  font-size: 11px;
+  padding: 2px 8px;
+  border-radius: 3px;
+  background: var(--bg-inset);
+}
+
+.metaLine {
+  font-size: 12px;
+  color: var(--text-muted);
+  line-height: 1.5;
+  margin-bottom: 12px;
+}
+
+.tabContent {
+  margin-top: 12px;
+}
+
+.footerRow {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  gap: 12px;
+}
+
+.footerHint {
+  font-size: 12px;
+  color: var(--text-muted);
+}
+
+/* LogsPanel.tsx */
+.filterBar {
+  display: flex;
+  gap: 8px;
+  align-items: center;
+  padding: 8px 0;
+  font-size: 12px;
+}
+
+.emptyState {
+  padding: 16px;
+  color: var(--text-muted);
+}
+
+.logRow {
+  font-family: monospace;
+  font-size: 11px;
+  padding: 2px 0;
+}
+
+.logTimestamp {
+  color: var(--text-muted);
+}