feat(observatory): seal blocked run preparations

apps/control-station/src/styles/observatory.css

@@ -1,5 +1,7 @@
 .observatory-workspace {
   display: grid;
+  grid-auto-rows: max-content;
+  align-content: start;
   gap: 1rem;
   min-width: 0;
   min-height: 100%;
@@ -37,6 +39,14 @@
   margin: 0.3rem 0 0;
 }
 
+.observatory-catalog-bar h3,
+.observatory-session-summary h3,
+.observatory-evidence h3 {
+  font-size: var(--nodedc-font-size-lg);
+  letter-spacing: -0.02em;
+  line-height: 1.15;
+}
+
 .observatory-lead p,
 .observatory-catalog-bar p,
 .observatory-state p,
@@ -44,7 +54,14 @@
   max-width: 52rem;
   margin: 0.35rem 0 0;
   color: var(--nodedc-text-muted);
-  line-height: 1.5;
+  font-size: var(--nodedc-font-size-sm);
+  line-height: 1.35;
+}
+
+.observatory-catalog-bar,
+.observatory-session-summary {
+  align-self: start;
+  min-height: 0;
 }
 
 .observatory-catalog-bar__copy {
@@ -77,6 +94,8 @@
 
 .observatory-session-stack {
   display: grid;
+  grid-auto-rows: max-content;
+  align-content: start;
   gap: 0.9rem;
   container-name: observatory-session;
   container-type: inline-size;
@@ -130,6 +149,8 @@
   margin: 0;
   overflow-wrap: anywhere;
   color: var(--nodedc-text-secondary);
+  font-size: var(--nodedc-font-size-sm);
+  line-height: 1.35;
 }
 
 .observatory-session-summary__end {
@@ -168,7 +189,8 @@
   max-width: 68rem;
   margin: 0.3rem 0 0;
   color: var(--nodedc-text-muted);
-  line-height: 1.45;
+  font-size: var(--nodedc-font-size-sm);
+  line-height: 1.35;
 }
 
 .observatory-setup-detail__badges,
@@ -212,6 +234,8 @@
   margin: 0;
   overflow-wrap: anywhere;
   color: var(--nodedc-text-secondary);
+  font-size: var(--nodedc-font-size-sm);
+  line-height: 1.35;
 }
 
 .observatory-setup-results {
@@ -250,6 +274,8 @@
 
 .observatory-setup-results small {
   color: var(--nodedc-text-muted);
+  font-size: var(--nodedc-font-size-sm);
+  line-height: 1.35;
 }
 
 .observatory-setup-detail__footer {