refactor(ui): split review workflow components

web/src/app/(app)/reviews/page.tsx

@@ -1,21 +1,19 @@
 "use client";
 
-import Link from "next/link";
 import { useCallback, useEffect, useMemo, useState } from "react";
 import { AppShell } from "@/components/AppShell";
-import { AgentTimeline } from "@/components/AgentTimeline";
-import { ProposalReviewCard } from "@/components/ProposalReviewCard";
 import {
   Badge,
-  Button,
-  ListItemButton,
   Panel,
-  PanelBody,
-  PanelHeader,
-  PanelTitle,
-  StatusBadge,
-  Textarea,
 } from "@/components/ui/Primitives";
+import {
+  ProposalDiffCard,
+  ReviewDecisionBar,
+  ReviewNoteField,
+  ReviewQueueList,
+  ReviewTimeline,
+  ReviewWorkflowNav,
+} from "@/components/reviews/ReviewWorkflow";
 import { approveReviewItem, batchReviewItems, listAgentTimeline, listApprovalQueue, rejectReviewItem } from "@/lib/review-client";
 import { toast } from "@/lib/toast";
 import type { AgentTimelineItem, ApprovalQueueItem } from "@/lib/types";
@@ -93,14 +91,6 @@ export default function ReviewsPage() {
     },
   ] as const;
 
-  function getWorkflowHref(workflow: (typeof operatorWorkflows)[number]) {
-    if (workflow.id === "workflow-agent-activity") {
-      return "/reviews";
-    }
-
-    return "/reviews";
-  }
-
   async function handleDecision(decision: "approved" | "rejected") {
     if (!featuredProposal) {
       return;
@@ -189,131 +179,41 @@ export default function ReviewsPage() {
       actions={<Badge>Operator workflow shell</Badge>}
     >
       <section style={{ display: "grid", gridTemplateColumns: "minmax(260px, 320px) minmax(0, 1fr)", gap: "var(--nl-space-4)" }}>
-        <Panel as="aside">
-          <PanelHeader>
-            <PanelTitle>Operator workflows</PanelTitle>
-          </PanelHeader>
-          <div style={{ display: "grid", gap: "var(--nl-space-3)" }}>
-            {operatorWorkflows.map((workflow) => (
-              <Link
-                key={workflow.id}
-                href={getWorkflowHref(workflow)}
-                style={{ display: "grid", gap: "var(--nl-space-2)" }}
-              >
-                <strong>{workflow.name}</strong>
-                <span style={{ color: "var(--nl-text-secondary)" }}>Owner: {workflow.owner}</span>
-                <div style={{ display: "flex", gap: "var(--nl-space-2)", flexWrap: "wrap" }}>
-                  <StatusBadge status={workflow.status === "healthy" ? "approved" : "pending"}>
-                    {workflow.status}
-                  </StatusBadge>
-                  <Badge>Queue: {workflow.queueCount}</Badge>
-                  <Badge>SLA {workflow.sla}</Badge>
-                </div>
-              </Link>
-            ))}
-          </div>
-        </Panel>
+        <ReviewWorkflowNav workflows={operatorWorkflows} />
 
         <Panel>
-          <PanelHeader>
-            <PanelTitle>Approval queue</PanelTitle>
-            <div style={{ display: "flex", gap: "var(--nl-space-2)", flexWrap: "wrap", alignItems: "center" }}>
-              {batchMode ? (
-                <>
-                  <Badge>{selectedBatchIds.size} selected</Badge>
-                  <Button type="button" variant="ghost" size="sm" onClick={clearBatch}>Clear</Button>
-                </>
-              ) : (
-                <Button type="button" variant="ghost" size="sm" onClick={selectAllForBatch}>Select all</Button>
-              )}
-              <StatusBadge status="pending">status:pending</StatusBadge>
-            </div>
-          </PanelHeader>
+          <ReviewDecisionBar
+            batchMode={batchMode}
+            selectedCount={selectedBatchIds.size}
+            isSubmitting={isSubmitting}
+            onSelectAll={selectAllForBatch}
+            onClear={clearBatch}
+            onBatchDecision={(decision) => void handleBatchDecision(decision)}
+          />
           {error ? <div style={{ color: "var(--nl-text-secondary)" }}>{error}</div> : null}
 
-          {batchMode ? (
-            <div style={{ display: "flex", gap: "var(--nl-space-2)", flexWrap: "wrap" }}>
-              <Button
-                type="button"
-                disabled={isSubmitting}
-                onClick={() => void handleBatchDecision("approved")}
-              >
-                Approve {selectedBatchIds.size}
-              </Button>
-              <Button
-                type="button"
-                disabled={isSubmitting}
-                onClick={() => void handleBatchDecision("rejected")}
-                variant="destructive"
-              >
-                Reject {selectedBatchIds.size}
-              </Button>
-            </div>
-          ) : null}
-
-          <div style={{ display: "grid", gap: "var(--nl-space-3)" }}>
-            {approvalQueue.map((item) => (
-              <ListItemButton
-                key={item.id}
-                selected={
-                  batchMode
-                    ? selectedBatchIds.has(item.id)
-                    : featuredProposal?.id === item.id
-                }
-                onClick={() => batchMode ? toggleBatchItem(item.id) : setSelectedApprovalId(item.id)}
-                style={{
-                  display: "flex",
-                  justifyContent: "space-between",
-                  gap: "var(--nl-space-3)",
-                  alignItems: "center",
-                  flexWrap: "wrap",
-                  textAlign: "left",
-                }}
-              >
-                <div style={{ display: "grid", gap: 4 }}>
-                  <strong>{item.title}</strong>
-                  <span style={{ color: "var(--nl-text-secondary)" }}>{item.owner}</span>
-                </div>
-                <div style={{ display: "flex", gap: "var(--nl-space-2)", flexWrap: "wrap" }}>
-                  {batchMode ? (
-                    <Badge>{selectedBatchIds.has(item.id) ? "selected" : "unselected"}</Badge>
-                  ) : null}
-                  <Badge>{item.severity}</Badge>
-                  <StatusBadge status={item.status === "proposed" ? "proposed" : "pending"}>
-                    {item.status}
-                  </StatusBadge>
-                </div>
-              </ListItemButton>
-            ))}
-          </div>
+          <ReviewQueueList
+            items={approvalQueue}
+            batchMode={batchMode}
+            selectedBatchIds={selectedBatchIds}
+            selectedApprovalId={featuredProposal?.id ?? null}
+            onSelectItem={(id) => batchMode ? toggleBatchItem(id) : setSelectedApprovalId(id)}
+          />
         </Panel>
       </section>
 
-      <Panel>
-        <PanelBody>
-        <Textarea
-          id="review-note"
-          label="Review note"
-          value={reviewNote}
-          onChange={(e) => setReviewNote(e.target.value)}
-          placeholder="Optional: add a note explaining your decision…"
-          rows={2}
-        />
-        </PanelBody>
-      </Panel>
+      <ReviewNoteField value={reviewNote} onChange={setReviewNote} />
 
       {featuredProposal && !batchMode ? (
-        <ProposalReviewCard
-          title={featuredProposal.title}
-          before={featuredProposal.before ?? "No prior summary captured."}
-          after={featuredProposal.after ?? "No proposed change summary captured yet."}
+        <ProposalDiffCard
+          proposal={featuredProposal}
           onApprove={() => void handleDecision("approved")}
           onReject={() => void handleDecision("rejected")}
           isSubmitting={isSubmitting}
         />
       ) : null}
 
-      <AgentTimeline items={timeline} />
+      <ReviewTimeline items={timeline} />
     </AppShell>
   );
 }

web/src/components/reviews/ReviewWorkflow.tsx

@@ -0,0 +1,216 @@
+import Link from "next/link";
+import { AgentTimeline } from "@/components/AgentTimeline";
+import { ProposalReviewCard } from "@/components/ProposalReviewCard";
+import {
+  Badge,
+  Button,
+  ListItemButton,
+  Panel,
+  PanelBody,
+  PanelHeader,
+  PanelTitle,
+  StatusBadge,
+  Textarea,
+} from "@/components/ui/Primitives";
+import type { AgentTimelineItem, ApprovalQueueItem } from "@/lib/types";
+
+type ReviewWorkflow = {
+  id: string;
+  name: string;
+  owner: string;
+  queueCount: number;
+  sla: string;
+  status: "healthy" | "at_risk";
+};
+
+type ReviewDecision = "approved" | "rejected";
+
+export function ReviewWorkflowNav({ workflows }: { workflows: readonly ReviewWorkflow[] }) {
+  return (
+    <Panel as="aside">
+      <PanelHeader>
+        <PanelTitle>Operator workflows</PanelTitle>
+      </PanelHeader>
+      <div style={{ display: "grid", gap: "var(--nl-space-3)" }}>
+        {workflows.map((workflow) => (
+          <Link
+            key={workflow.id}
+            href="/reviews"
+            style={{ display: "grid", gap: "var(--nl-space-2)" }}
+          >
+            <strong>{workflow.name}</strong>
+            <span style={{ color: "var(--nl-text-secondary)" }}>Owner: {workflow.owner}</span>
+            <div style={{ display: "flex", gap: "var(--nl-space-2)", flexWrap: "wrap" }}>
+              <StatusBadge status={workflow.status === "healthy" ? "approved" : "pending"}>
+                {workflow.status}
+              </StatusBadge>
+              <Badge>Queue: {workflow.queueCount}</Badge>
+              <Badge>SLA {workflow.sla}</Badge>
+            </div>
+          </Link>
+        ))}
+      </div>
+    </Panel>
+  );
+}
+
+export function ReviewDecisionBar({
+  batchMode,
+  selectedCount,
+  isSubmitting,
+  onSelectAll,
+  onClear,
+  onBatchDecision,
+}: {
+  batchMode: boolean;
+  selectedCount: number;
+  isSubmitting: boolean;
+  onSelectAll: () => void;
+  onClear: () => void;
+  onBatchDecision: (decision: ReviewDecision) => void;
+}) {
+  return (
+    <>
+      <PanelHeader>
+        <PanelTitle>Approval queue</PanelTitle>
+        <div style={{ display: "flex", gap: "var(--nl-space-2)", flexWrap: "wrap", alignItems: "center" }}>
+          {batchMode ? (
+            <>
+              <Badge>{selectedCount} selected</Badge>
+              <Button type="button" variant="ghost" size="sm" onClick={onClear}>
+                Clear
+              </Button>
+            </>
+          ) : (
+            <Button type="button" variant="ghost" size="sm" onClick={onSelectAll}>
+              Select all
+            </Button>
+          )}
+          <StatusBadge status="pending">status:pending</StatusBadge>
+        </div>
+      </PanelHeader>
+
+      {batchMode ? (
+        <div style={{ display: "flex", gap: "var(--nl-space-2)", flexWrap: "wrap" }}>
+          <Button
+            type="button"
+            disabled={isSubmitting}
+            onClick={() => onBatchDecision("approved")}
+          >
+            Approve {selectedCount}
+          </Button>
+          <Button
+            type="button"
+            disabled={isSubmitting}
+            onClick={() => onBatchDecision("rejected")}
+            variant="destructive"
+          >
+            Reject {selectedCount}
+          </Button>
+        </div>
+      ) : null}
+    </>
+  );
+}
+
+export function ReviewQueueList({
+  items,
+  batchMode,
+  selectedBatchIds,
+  selectedApprovalId,
+  onSelectItem,
+}: {
+  items: ApprovalQueueItem[];
+  batchMode: boolean;
+  selectedBatchIds: Set<string>;
+  selectedApprovalId: string | null;
+  onSelectItem: (id: string) => void;
+}) {
+  return (
+    <div style={{ display: "grid", gap: "var(--nl-space-3)" }}>
+      {items.map((item) => (
+        <ListItemButton
+          key={item.id}
+          selected={batchMode ? selectedBatchIds.has(item.id) : selectedApprovalId === item.id}
+          onClick={() => onSelectItem(item.id)}
+          style={{
+            display: "flex",
+            justifyContent: "space-between",
+            gap: "var(--nl-space-3)",
+            alignItems: "center",
+            flexWrap: "wrap",
+            textAlign: "left",
+          }}
+        >
+          <div style={{ display: "grid", gap: 4 }}>
+            <strong>{item.title}</strong>
+            <span style={{ color: "var(--nl-text-secondary)" }}>{item.owner}</span>
+          </div>
+          <div style={{ display: "flex", gap: "var(--nl-space-2)", flexWrap: "wrap" }}>
+            {batchMode ? (
+              <Badge>{selectedBatchIds.has(item.id) ? "selected" : "unselected"}</Badge>
+            ) : null}
+            <Badge>{item.severity}</Badge>
+            <StatusBadge status={item.status === "proposed" ? "proposed" : "pending"}>
+              {item.status}
+            </StatusBadge>
+          </div>
+        </ListItemButton>
+      ))}
+    </div>
+  );
+}
+
+export function ReviewNoteField({
+  value,
+  onChange,
+}: {
+  value: string;
+  onChange: (value: string) => void;
+}) {
+  return (
+    <Panel>
+      <PanelBody>
+        <Textarea
+          id="review-note"
+          label="Review note"
+          value={value}
+          onChange={(event) => onChange(event.target.value)}
+          placeholder="Optional: add a note explaining your decision..."
+          rows={2}
+        />
+      </PanelBody>
+    </Panel>
+  );
+}
+
+export function ProposalDiffCard({
+  proposal,
+  isSubmitting,
+  onApprove,
+  onReject,
+}: {
+  proposal: ApprovalQueueItem | null;
+  isSubmitting: boolean;
+  onApprove: () => void;
+  onReject: () => void;
+}) {
+  if (!proposal) {
+    return null;
+  }
+
+  return (
+    <ProposalReviewCard
+      title={proposal.title}
+      before={proposal.before ?? "No prior summary captured."}
+      after={proposal.after ?? "No proposed change summary captured yet."}
+      onApprove={onApprove}
+      onReject={onReject}
+      isSubmitting={isSubmitting}
+    />
+  );
+}
+
+export function ReviewTimeline({ items }: { items: AgentTimelineItem[] }) {
+  return <AgentTimeline items={items} />;
+}