fix: apply all cached fields + allow terminal sessions to enrich once

Addresses two new bugbot comments:

1. **Cached terminal data applied incompletely** (#2808048773):
   - Problem: Only copied some fields (state, ciStatus, etc.) but omitted title, additions, deletions
   - Fix: Added missing fields when applying cached data

2. **Terminal PRs remain permanently unenriched** (#2808048771):
   - Problem: Terminal sessions with no cache never got enriched → kept stale defaults forever
   - Fix: Removed the "skip enrichment for terminal with no cache" logic
   - Behavior: Terminal sessions now enrich at least once (or when cache expires), then skip subsequent enrichments

**Behavior change:**
- Before: Terminal session without cache → skip enrichment forever → stale data
- After: Terminal session without cache → enrich once → cache for 60s → skip while cached

This ensures terminal sessions get accurate PR data at least once, while still avoiding
unnecessary API calls for sessions that already have fresh cached data.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

packages/web/src/app/page.tsx

@@ -45,7 +45,11 @@ export default async function Home() {
       // Apply cached data if available (for both terminal and non-terminal sessions)
       if (cached) {
         if (sessions[i].pr) {
+          // Apply ALL cached fields (not just some)
           sessions[i].pr.state = cached.state;
+          sessions[i].pr.title = cached.title;
+          sessions[i].pr.additions = cached.additions;
+          sessions[i].pr.deletions = cached.deletions;
           sessions[i].pr.ciStatus = cached.ciStatus as "none" | "pending" | "passing" | "failing";
           sessions[i].pr.reviewDecision = cached.reviewDecision as
             | "none"
@@ -62,7 +66,8 @@ export default async function Home() {
           sessions[i].pr.unresolvedComments = cached.unresolvedComments;
         }
 
-        // Skip enrichment for terminal sessions or merged/closed PRs (data already applied from cache)
+        // Skip enrichment if cache is fresh AND (terminal OR merged/closed)
+        // This allows terminal sessions to be enriched once when cache is missing/expired
         if (
           terminalStatuses.has(core.status) ||
           cached.state === "merged" ||
@@ -72,12 +77,6 @@ export default async function Home() {
         }
       }
 
-      // Skip enrichment for terminal sessions with no cache
-      // (they won't have PR data to enrich anyway)
-      if (terminalStatuses.has(core.status)) {
-        return Promise.resolve();
-      }
-
       let project = config.projects[core.projectId];
       if (!project) {
         const entry = Object.entries(config.projects).find(([, p]) =>