swarm-ui/agents: detail panel shows full agent state, fix dropdown-behind-dialog bug

Three things from mara's PR review + argus's:

- "the info from main list should be included in the agent view" - detail
  panel now repeats status/message/wanted alongside the panel-only fields
  (hive, config PR, matrix link), not just the leftovers.
- "destroy is already available via wanted state" - dropped the standalone
  "destroy agent" button; the detail panel's wanted field is a real
  WantedMenu (default showDestroy) instead, same control as the card/table,
  just with the fourth option back. Also resolves argus's stale-doc-comment
  finding (the comment described a second WantedMenu call site that didn't
  exist yet - now it does).
- Rebased onto main to pick up the just-merged dropdown-portal-clip fix -
  this branch was cut before that merged, so it had silently regressed
  back to the pre-fix Dropdown the whole time.

That rebase surfaced a real bug of its own, likely "the third screenshot
shows a layout bug": WantedMenu always passed `portal` to Dropdown, and a
portaled (position: fixed, body-appended) dropdown renders *behind* an
open native <dialog> - the dialog is promoted to the browser's top layer,
which composites above ordinary body content regardless of z-index. Only
the sliver of the dropdown extending past the dialog's own edge was
visible. WantedMenu's `portal` is now its own prop, opt-in, true only at
the table's call site (the one with an actual clipping ancestor to escape)
- card and detail-panel call sites render it as a plain child instead,
which is both correct inside the dialog and one fewer moving part where
it isn't needed.

Verified with real CDP clicks: detail panel shows all fields, and its
wanted dropdown now renders in the right place with all four options
visible instead of mostly hidden behind the dialog.

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

@@ -174,6 +174,7 @@ function WantedMenu({
   onSelectPaused,
   onDestroy,
   showDestroy = true,
+  portal = false,
 }: {
   row: AgentRow;
   pending: boolean;
@@ -182,15 +183,29 @@ function WantedMenu({
   onSelectPaused: (row: AgentRow) => void;
   onDestroy?: (row: AgentRow) => void;
   /**
-   * The card view (see `AgentCard` below) keeps this menu to the
+   * The card view (see `AgentCard` below) passes `false` here — its
-   * three everyday states and gives "destroy" — the rare, one-way
+   * quick-access menu keeps to the three everyday states, so "destroy"
-   * one — its own button in the detail panel instead, so it can't be
+   * can't be reached by an extra click off a state that's already open.
-   * reached by an extra click off a state that's already open (mara,
+   * `AgentsPage`'s detail-panel `WantedMenu` keeps the default (`true`)
-   * scoping the card/detail split: destroy belongs with the "rarely
+   * — mara: "destroy is already available via wanted state", i.e. the
-   * used actions" bucket, not next to up/paused/offline). The
+   * full menu there, not a separate button.
-   * `WantedMenu` inside that detail panel still gets the full set.
    */
   showDestroy?: boolean;
+  /**
+   * Forwarded to `Dropdown`'s own `portal` (see its file-top comment) —
+   * only the table's "wanted" column needs it, to escape
+   * `.ui-table-scroll`'s clip on the table's last row (the bug `Dropdown`'s
+   * own `portal` prop exists to fix in the first place).
+   * Neither the card list nor the detail panel has a clipping ancestor,
+   * and inside the detail panel specifically `portal` is actively wrong:
+   * a `position: fixed` element appended to `document.body` renders
+   * *behind* an open native `<dialog>` (the dialog is promoted to the
+   * browser's top layer, which composites above ordinary body content
+   * regardless of z-index) — found while screenshotting this exact
+   * dropdown open inside the detail panel, only the portion extending
+   * past the dialog's own edge was visible.
+   */
+  portal?: boolean;
 }) {
   const [open, setOpen] = useState(false);
   const anchorRef = useRef<HTMLDivElement>(null);
@@ -234,7 +249,7 @@ function WantedMenu({
       />
       <Dropdown
         open={open}
-        portal
+        portal={portal}
         options={options}
         activeValue={row.wanted ?? undefined}
         label={`declare ${row.name}`}
@@ -255,13 +270,14 @@ function WantedMenu({
 // One card per roster agent (mara: "main view: name, status, message,
 // wanted" / "message as second line" / "more like card per agent") —
 // the `viewMode === "cards"` alternative to the original `Table`, not
-// its replacement (see `AgentsPage`'s own comment). Everything the
+// its replacement (see `AgentsPage`'s own comment). Clicking a card
-// table's other columns carried (hive, matrix link-account, config-PR
+// opens a detail panel repeating this same info plus what doesn't fit
-// link, destroy) moves to a detail panel on card click instead — a
+// here (hive, config-PR link, matrix link-account) — mara: "the info
-// plain `Dialog`, not the shared `hive-side-panel` slide-in drawer:
+// from main list should be included in the agent view" too, not just
-// that's a shadow-DOM custom element, and swarm-ui's esbuild config
+// the leftovers. A plain `Dialog`, not the shared `hive-side-panel`
-// can't consume those yet (same gap `Dialog.tsx`'s own comment already
+// slide-in drawer: that's a shadow-DOM custom element, and swarm-ui's
-// flags for `hive-dialog`). Revisit once that gap closes.
+// esbuild config can't consume those yet (same gap `Dialog.tsx`'s own
+// comment already flags for `hive-dialog`). Revisit once that closes.
 //
 // A `role="button"` div, not a real `<button>`: the card also hosts the
 // real `<button>`s inside `WantedMenu`, and nested buttons are invalid
@@ -404,9 +420,8 @@ export function AgentsPage() {
   // confirmation of a `declareState` call, it's an unrelated action with
   // its own form (`LinkMatrixAccountForm`).
   const [matrixTarget, setMatrixTarget] = useState<AgentRow | null>(null);
-  // The row showing the detail panel (hive, matrix link-account,
+  // The row showing the detail panel (see the `Dialog` below for what
-  // config-PR link, destroy — everything `AgentCard`'s main view
+  // it holds) — same null-means-closed shape as the two above.
-  // doesn't) — same null-means-closed shape as the two above.
   const [detailTarget, setDetailTarget] = useState<AgentRow | null>(null);
 
   async function refresh() {
@@ -509,6 +524,16 @@ export function AgentsPage() {
     await declareState(row, "destroyed");
   }
 
+  // The three non-destroy `WantedMenu` selections, factored out once
+  // rather than repeated per call site — the card, the table's "wanted"
+  // column, and the detail panel's own `WantedMenu` (below) all wire the
+  // same three.
+  const selectUp = (row: AgentRow) => void declareState(row, "up");
+  const selectOffline = (row: AgentRow) =>
+    setConfirmTarget({ row, state: "offline" });
+  const selectPaused = (row: AgentRow) =>
+    setConfirmTarget({ row, state: "paused" });
+
   // `viewMode === "table"`'s columns — the full field set (including
   // per-column sort/filter, which the card view doesn't have) mara asked
   // to keep. Table's own `WantedMenu` keeps the default `showDestroy`
@@ -581,13 +606,10 @@ export function AgentsPage() {
             <WantedMenu
               row={a}
               pending={pendingAgents.has(a.name)}
-              onSelectUp={(row) => void declareState(row, "up")}
+              portal
-              onSelectOffline={(row) =>
+              onSelectUp={selectUp}
-                setConfirmTarget({ row, state: "offline" })
+              onSelectOffline={selectOffline}
-              }
+              onSelectPaused={selectPaused}
-              onSelectPaused={(row) =>
-                setConfirmTarget({ row, state: "paused" })
-              }
               onDestroy={setDestroyTarget}
             />
             {err ? (
@@ -700,13 +722,9 @@ export function AgentsPage() {
               row={a}
               pending={pendingAgents.has(a.name)}
               error={actionErrors.get(a.name)}
-              onSelectUp={(row) => void declareState(row, "up")}
+              onSelectUp={selectUp}
-              onSelectOffline={(row) =>
+              onSelectOffline={selectOffline}
-                setConfirmTarget({ row, state: "offline" })
+              onSelectPaused={selectPaused}
-              }
-              onSelectPaused={(row) =>
-                setConfirmTarget({ row, state: "paused" })
-              }
               onOpenDetail={setDetailTarget}
             />
           ))}
@@ -725,12 +743,59 @@ export function AgentsPage() {
         onClose={() => setDetailTarget(null)}
         label={detailTarget ? `${detailTarget.name} details` : "agent details"}
       >
-        {/* Everything `AgentCard`'s main view doesn't already show — see
+        {/* Mara: "the info from main list should be included in the
-            that component's own comment for the field split. */}
+            agent view" — so this repeats status/message/wanted rather
+            than showing only what `AgentCard`'s main view doesn't, plus
+            hive/config-PR/matrix-link, which really are panel-only. */}
         {detailTarget ? (
           <div class="ui-agent-detail">
             <h2 class="ui-agent-detail-name">{detailTarget.name}</h2>
             <dl class="ui-agent-detail-fields">
+              <dt>status</dt>
+              <dd>
+                {(() => {
+                  const { tone, label } = FRESHNESS[detailTarget.freshness];
+                  return (
+                    <Badge
+                      tone={tone}
+                      value={
+                        <>
+                          {label}
+                          {detailTarget.last_seen_unix !== null ? (
+                            <>
+                              {" "}
+                              (
+                              <RelativeTime
+                                epochMs={detailTarget.last_seen_unix * 1000}
+                              />
+                              )
+                            </>
+                          ) : null}
+                        </>
+                      }
+                    />
+                  );
+                })()}
+              </dd>
+              <dt>message</dt>
+              <dd>{detailTarget.snapshot?.status_text ?? "—"}</dd>
+              <dt>wanted</dt>
+              <dd>
+                {/* Full menu (destroy included) — mara: "destroy is
+                    already available via wanted state", no separate
+                    button needed. */}
+                <WantedMenu
+                  row={detailTarget}
+                  pending={pendingAgents.has(detailTarget.name)}
+                  onSelectUp={selectUp}
+                  onSelectOffline={selectOffline}
+                  onSelectPaused={selectPaused}
+                  onDestroy={(row) => {
+                    setDestroyTarget(row);
+                    setDetailTarget(null);
+                  }}
+                />
+              </dd>
               <dt>hive</dt>
               <dd>{detailTarget.hive ?? "—"}</dd>
               <dt>config PR</dt>
@@ -777,15 +842,6 @@ export function AgentsPage() {
                     : "no hive on record for this agent — nothing to link against"
                 }
               />
-              <Button
-                disabled={detailTarget.wanted === "destroyed"}
-                onClick={() => {
-                  setDestroyTarget(detailTarget);
-                  setDetailTarget(null);
-                }}
-              >
-                destroy agent
-              </Button>
             </div>
           </div>
         ) : null}