dashboard: move queued reminders into SCH3DUL3S tab (closes #460)

mara wanted one place for everything that fires at a future time.
The QU3U3D R3M1ND3RS section moves out of the SYST3M tab and
lands at the bottom of the SCH3DUL3S tab, below QU3U3D SCH3DUL3S.

Pure layout change — refreshReminders() and /api/reminders
unchanged; the section just lives under a different parent now.
Reminders don't contribute to the SCH3DUL3S pill count (kept as
"active schedules" only — reminders are self-scheduled and high
cardinality; adding them would make the pill noisy).

docs/web-ui.md picks up a SCH3DUL3S tab section (the previous
docs lumped the schedules subsection under SYST3M, but the tab
has been separate since #459); reminders subsection follows
schedules in the same tab.

docs/web-ui.md

@@ -122,15 +122,16 @@ the previous process's socket release resolves itself.
 
 The dashboard (`/`) has a fixed chrome header at the top and a
 `<main>` that shows exactly one tab pane at a time. The URL hash
-(`#swarm`, `#call`, `#system`) drives which pane is active; hash
-changes don't reload the page. FL0W is a separate full-page
-terminal at `/flow.html` — its tab-strip entry is a cross-page
-link (`◆ FL0W ◆ →`), not a pane swap.
+(`#swarm`, `#call`, `#system`, `#schedules`) drives which pane is
+active; hash changes don't reload the page. FL0W is a separate
+full-page terminal at `/flow.html` — its tab-strip entry is a
+cross-page link (`◆ FL0W ◆ →`), not a pane swap.
 
 **Chrome header** (fixed, overlays the active tab pane):
-- **Tab strip**: `◆ SW4RM ◆`, `◆ Y3R C4LL ◆`, `◆ SYST3M ◆`, and
-  `◆ FL0W ◆ →` (page link). Count pills on SW4RM (container count)
-  and Y3R C4LL (pending approvals + questions); FL0W pill mirrors
+- **Tab strip**: `◆ SW4RM ◆`, `◆ Y3R C4LL ◆`, `◆ SYST3M ◆`,
+  `◆ SCH3DUL3S ◆`, and `◆ FL0W ◆ →` (page link). Count pills on
+  SW4RM (container count), Y3R C4LL (pending approvals +
+  questions), and SCH3DUL3S (active schedules); FL0W pill mirrors
   the operator inbox length (hidden when zero).
 - **Notification controls**: `🔔 enable notifications` when
   permission ungranted; `🔕 mute / 🔔 unmute` toggle once granted.
@@ -211,20 +212,25 @@ entries tick elapsed seconds live. Cold-loaded from
 `/api/state.rebuild_queue`; live updates via `rebuild_queue_changed`
 snapshot event.
 
-**QU3U3D R3M1ND3RS** — reminders agents have scheduled for
-themselves (via the `remind` tool) but not yet delivered.
-Each row shows the owner, due time, and message; a `CANC3L`
-button hard-deletes (`POST /cancel-reminder/{id}`) and a
-`R3TRY` button re-arms one whose delivery failed
-(`POST /retry-reminder/{id}`). Backed by `GET /api/reminders`.
+**K3PT ST4T3** — destroyed-but-state-kept tombstones (size +
+age + claude-creds badge). Two actions: `⊕ R3V1V3` (queues a
+Spawn approval; existing state is reused), `PURG3` (wipes
+state + applied dirs; `POST /purge-tombstone/{name}`).
 
-**SCH3DUL3D PR0MPTS** — operator-managed scheduled prompts
-(#444 / #459). Lists every schedule with its description,
-targets, body, recurrence interval, next-fire time, and
-per-target last-result; a `CANC3L` button cancels the whole
-schedule (`POST /api/schedules/{id}/cancel`), and individual
-target chips have their own cancel links. An inline creation
-form lets the operator queue a new schedule directly:
+### SCH3DUL3S tab
+
+Anything that fires at a future time. Operator-set schedules
+go through the creation form at the top; agent self-paced
+reminders surface at the bottom as a sibling list (#460 —
+they share enough conceptual ground to live together).
+
+**N3W SCH3DUL3 / QU3U3D SCH3DUL3S** — operator-managed
+scheduled prompts (#444 / #459). Lists every schedule with
+its description, targets, body, recurrence interval, next-fire
+time, and per-target last-result; a `CANC3L` button cancels
+the whole schedule (`POST /api/schedules/{id}/cancel`), and
+individual target chips have their own cancel links. An inline
+creation form lets the operator queue a new schedule directly:
 targets (multi-select checkboxes drawn from live container
 names + `operator` + `manager`), prompt body (textarea),
 first-fire datetime-local (pre-filled to 5 minutes from now),
@@ -235,10 +241,14 @@ the count of active schedules (at least one live target not
 yet cancelled). Refreshed on tab activation and after each
 submit/cancel. Backed by `GET /api/schedules`.
 
-**K3PT ST4T3** — destroyed-but-state-kept tombstones (size +
-age + claude-creds badge). Two actions: `⊕ R3V1V3` (queues a
-Spawn approval; existing state is reused), `PURG3` (wipes
-state + applied dirs; `POST /purge-tombstone/{name}`).
+**QU3U3D R3M1ND3RS** — reminders agents have scheduled for
+themselves (via the `remind` tool) but not yet delivered.
+Each row shows the owner, due time, and message; a `CANC3L`
+button hard-deletes (`POST /cancel-reminder/{id}`) and a
+`R3TRY` button re-arms one whose delivery failed
+(`POST /retry-reminder/{id}`). Backed by `GET /api/reminders`.
+Lives in the SCH3DUL3S tab alongside operator schedules so the
+operator has one place for everything time-fired (#460).
 
 ### FL0W page (`/flow.html`)
 

frontend/packages/dashboard/src/index.html

@@ -104,10 +104,12 @@
     </section>
 
     <!-- SYST3M: passive / rare-interaction state. Meta inputs (lock
-         bumps), rebuild queue (watch only), queued reminders, kept
-         state from previous tombstoned agents. Headings stay; the
-         per-section content auto-compresses to a one-line summary
-         when empty (separate JS toggle). -->
+         bumps), rebuild queue (watch only), kept state from previous
+         tombstoned agents. Queued reminders moved to the SCH3DUL3S
+         tab in #460 — they're conceptually "fire X at time Y" too,
+         just self-scheduled by agents instead of operator-set.
+         Headings stay; the per-section content auto-compresses to a
+         one-line summary when empty (separate JS toggle). -->
     <section class="tab-pane" id="tab-pane-system"
              role="tabpanel" aria-labelledby="tab-system">
       <h2>◆ M3T4 1NPUTS ◆</h2>
@@ -124,13 +126,6 @@
         <p class="meta">loading…</p>
       </div>
 
-      <h2>◆ QU3U3D R3M1ND3RS ◆</h2>
-      <div class="divider">══════════════════════════════════════════════════════════════</div>
-      <p class="meta">reminders agents have queued for themselves but not yet delivered. cancel to drop a stuck or unwanted entry.</p>
-      <div id="reminders-section">
-        <p class="meta">loading…</p>
-      </div>
-
       <h2>◆ K3PT ST4T3 ◆</h2>
       <div class="divider">══════════════════════════════════════════════════════════════</div>
       <div id="tombstones-section">
@@ -161,6 +156,19 @@
       <div id="schedules-section">
         <p class="meta">loading…</p>
       </div>
+
+      <!-- QU3U3D R3M1ND3RS (#460): self-scheduled agent reminders.
+           Moved here from the SYST3M tab so the operator has one
+           place for everything that fires at a future time —
+           operator-set schedules above, agent-self reminders here.
+           Backed by GET /api/reminders; refresh handled by
+           refreshReminders() (called from refreshState). -->
+      <h2>◆ QU3U3D R3M1ND3RS ◆</h2>
+      <div class="divider">══════════════════════════════════════════════════════════════</div>
+      <p class="meta">reminders agents have queued for themselves but not yet delivered. cancel to drop a stuck or unwanted entry.</p>
+      <div id="reminders-section">
+        <p class="meta">loading…</p>
+      </div>
     </section>
 
     <!-- FL0W: lives on its own page now (`/flow.html`). The