swarm-ui: use multiselect for every enum-shaped table filter

frontend/packages/swarm-ui/src/pages/IssueReportPage.tsx

@@ -312,14 +312,12 @@ export function IssueReportPage() {
       ),
       ariaSort: ariaSortFor("assignees"),
       render: (r) => (r.assignees.length ? r.assignees.join(", ") : "—"),
-      // Text, not `"select"` — a row can carry more than one assignee,
-      // and `Table`'s select mode matches one whole string per row
-      // exactly, so a real per-assignee dropdown would need `Table`
-      // itself to grow multi-value filtering. Substring search over
-      // the joined string still finds "iris" inside "damocles, iris"
-      // correctly, which covers the actual gap (no way to filter by
-      // assignee at all today).
-      filterValue: (r) => r.assignees.join(", "),
+      // Multiselect, same machinery the "labels" column above already
+      // uses — `r.assignees` is already the per-row array this mode
+      // wants, so there's no reason to fall back to a joined-string
+      // substring search here.
+      filterValues: (r) => r.assignees,
+      filterMode: "multiselect",
     },
     {
       key: "blocked",
@@ -337,11 +335,11 @@ export function IssueReportPage() {
         r.blocked ? <Badge tone="warning" value="blocked" /> : "—",
       // A distinct gap from the existing "hide blocked" toggle above:
       // that one only *hides* blocked issues, there was no way to see
-      // *only* the blocked ones. Synthesized two-value string (not the
-      // raw boolean) — `Table`'s select mode needs a string to match,
-      // same as `AgentsPage`'s `wanted ?? "no declaration"` pattern.
-      filterValue: (r) => (r.blocked ? "blocked" : "not blocked"),
-      filterMode: "select",
+      // *only* the blocked ones. Synthesized two-value set (not the raw
+      // boolean) — multiselect, same as every other enum-shaped column,
+      // rather than the single-value `"select"` mode.
+      filterValues: (r) => [r.blocked ? "blocked" : "not blocked"],
+      filterMode: "multiselect",
     },
     {
       key: "depended_on_by_count",