dashboard: SCH3DUL3S is a read-only list with a removal banner

The tab lists the rows left in the hive's store so the operator can
recreate them with `swarmctl schedule add`: no create row, edit form,
fire/pause/cancel buttons or schedules_changed subscription. The next
column shows the stored next fire time as an absolute UTC timestamp (the
value for --at) instead of a countdown. A warning banner says the page is
slated for removal and points at swarmctl. The approvals view drops the
schedule_prompt card and the approval_added subscription.

frontend/packages/dashboard/src/call.js

@@ -12,7 +12,7 @@
 
 import { $, form, appendLinkified } from "./common.js";
 import { el } from "@hive/shared/dom.js";
-import { epochSec, fmtAgo, fmtDuration } from "./util.js";
+import { epochSec, fmtAgo } from "./util.js";
 
 // Registered by the dashboard entry at boot; defaults to a no-op so the
 // module is safe to call before wiring.
@@ -117,7 +117,7 @@ export function operatorInboxAppendFromEvent(ev) {
 // ─── approvals — the operator config-change approval queue ────────
 const APPROVAL_TAB_KEY = "hyperhive:approvals:tab";
 // Derived approval state — cold-loaded from /api/state, then mutated
-// live by `approval_added` / `approval_resolved` dashboard events.
+// live by `approval_resolved` dashboard events.
 // `pending` is the open queue (newest-first); `history` is the last
 // 30 resolved rows.
 const APPROVAL_HISTORY_LIMIT = 30;
@@ -129,26 +129,6 @@ export function syncApprovalsFromSnapshot(s) {
   approvalsState.pending = (s.approvals || []).slice();
   approvalsState.history = (s.approval_history || []).slice();
 }
-export function applyApprovalAdded(ev) {
-  // Upsert by id so a snapshot that already included the row (cold
-  // load + event lands at the same tick) doesn't double it.
-  const existing = approvalsState.pending.findIndex((a) => a.id === ev.id);
-  const row = {
-    id: ev.id,
-    agent: ev.agent,
-    kind: ev.approval_kind,
-    description: ev.description || null,
-    // The ApprovalAdded event carries no requested_at; a live-added
-    // approval was queued just now, so client-now is accurate — and
-    // consistent with how fmtAgo compares everything to client-now.
-    // A later /api/state cold-load swaps in the server value.
-    requested_at:
-      ev.requested_at != null ? ev.requested_at : Math.floor(Date.now() / 1000),
-  };
-  if (existing >= 0) approvalsState.pending[existing] = row;
-  else approvalsState.pending.push(row);
-  renderApprovals();
-}
 export function applyApprovalResolved(ev) {
   // Drop from pending; prepend to history (newest-first), cap at 30.
   approvalsState.pending = approvalsState.pending.filter((a) => a.id !== ev.id);
@@ -175,7 +155,7 @@ export function applyApprovalResolved(ev) {
 export function renderApprovals() {
   const root = $("approvals-section");
   // #approvals-section only lives on /dashboard.html (Y3R C4LL tab);
-  // no-op elsewhere — `approval_added` / `approval_resolved` SSE
+  // no-op elsewhere — `approval_resolved` SSE
   // events route through here on every page that loads the bundle.
   if (!root) return;
   root.replaceChildren();
@@ -223,17 +203,16 @@ export function renderApprovals() {
   const ul = el("ul", { class: "approvals" });
   for (const a of pending) {
     const isUpdateMeta = a.kind === "update_meta_inputs";
-    const isSchedule = a.kind === "schedule_prompt";
     const li = el("li", { class: "approval-card" });
 
     // ── identity header ──────────────────────────────────────────
     const head = el(
       "div",
       { class: "approval-head" },
-      el("span", { class: "glyph" }, isUpdateMeta ? "↻" : "⏱"),
+      el("span", { class: "glyph" }, "↻"),
       el("span", { class: "id" }, "#" + a.id),
       el("span", { class: "agent" }, a.agent),
-      el("span", { class: "kind" }, isUpdateMeta ? "meta-update" : "schedule"),
+      el("span", { class: "kind" }, isUpdateMeta ? "meta-update" : a.kind),
     );
     // When the approval was requested — relative time, right-aligned.
     // Goes amber once it's been pending an hour so a stale request is
@@ -276,34 +255,6 @@ export function renderApprovals() {
             : "bump all flake inputs",
         ),
       );
-    } else if (isSchedule) {
-      let payload;
-      try {
-        payload = JSON.parse(a.commit_ref || "{}");
-      } catch (_) {
-        payload = {};
-      }
-      const targets = (payload.targets || []).join(", ");
-      const firstFire = payload.first_fire_at_unix
-        ? new Date(payload.first_fire_at_unix * 1000).toLocaleString()
-        : "?";
-      const cadence = payload.interval_seconds
-        ? " · ↻ every " + fmtDuration(payload.interval_seconds)
-        : " · one-shot";
-      body.append(
-        el(
-          "div",
-          { class: "meta" },
-          "→ " + targets + " · first: " + firstFire + cadence,
-        ),
-      );
-      if (payload.body) {
-        const excerpt =
-          payload.body.length > 80
-            ? payload.body.slice(0, 80) + "…"
-            : payload.body;
-        body.append(el("div", { class: "approval-description" }, excerpt));
-      }
     } else {
       body.append(
         el(
@@ -381,7 +332,7 @@ function renderApprovalHistory(root, history) {
       el(
         "span",
         { class: "kind" },
-        a.kind === "update_meta_inputs" ? "meta-update" : "schedule",
+        a.kind === "update_meta_inputs" ? "meta-update" : a.kind,
       ),
       " ",
     );