Phase 2: Refactor History cluster to use MessageEntry

Replace ad hoc flat props with MessageEntry from core/mcp/types.ts
across the History group components and HistoryScreen.

- HistoryEntry: accept `entry: MessageEntry` instead of flat props
  (timestamp, method, target, status, durationMs, parameters, response);
  derive method/target/status from embedded JSON-RPC objects; fix
  Collapse animation by removing outer {isExpanded && ...} wrapper;
  drop childEntries (not part of MessageEntry)
- HistoryControls: type onMethodFilterChange as (string | undefined)
- HistoryListPanel: accept `MessageEntry[]` + `pinnedIds: Set<string>`
  instead of separate entries/pinnedEntries arrays with pre-bound
  callbacks; pass onReplay/onTogglePin by entry ID
- HistoryScreen: accept `MessageEntry[]` + `pinnedIds` + ID-based
  callbacks; collapse two-array model into single list with pinned
  overlay
- Delete local HistoryEntryProps data shape, HistoryChildEntry type
- Update all stories with real JSON-RPC MessageEntry fixtures
- Update ConnectedView HistoryActive story

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

clients/web/src/components/groups/HistoryControls/HistoryControls.stories.tsx

@@ -5,12 +5,6 @@ import { HistoryControls } from "./HistoryControls";
 const meta: Meta<typeof HistoryControls> = {
   title: "Groups/HistoryControls",
   component: HistoryControls,
-};
-
-export default meta;
-type Story = StoryObj<typeof HistoryControls>;
-
-export const Default: Story = {
   args: {
     searchText: "",
     onSearchChange: fn(),
@@ -18,11 +12,14 @@ export const Default: Story = {
   },
 };
 
+export default meta;
+type Story = StoryObj<typeof HistoryControls>;
+
+export const Default: Story = {};
+
 export const WithFilters: Story = {
   args: {
     searchText: "tools",
     methodFilter: "tools/call",
-    onSearchChange: fn(),
-    onMethodFilterChange: fn(),
   },
 };

clients/web/src/components/groups/HistoryControls/HistoryControls.tsx

@@ -15,7 +15,7 @@ export interface HistoryControlsProps {
   searchText: string;
   methodFilter?: string;
   onSearchChange: (text: string) => void;
-  onMethodFilterChange: (method: string) => void;
+  onMethodFilterChange: (method: string | undefined) => void;
 }
 
 export function HistoryControls({
@@ -38,7 +38,7 @@ export function HistoryControls({
         placeholder="All methods"
         data={METHOD_OPTIONS}
         value={methodFilter ?? null}
-        onChange={(value) => onMethodFilterChange(value ?? "")}
+        onChange={(value) => onMethodFilterChange(value ?? undefined)}
         clearable
       />
     </Stack>