Monitoring sidebar toggle, Prompts-style Tools results, and icon-button UI polish (#1661) (#1662)

* feat(web): single header MonitoringToggle + Prompts-style Tools results (#1661)

Consolidate the monitoring column's open/close affordances into one header
toggle, and align the Tools/Prompts result panes and the sidebar log layout.

- Add a single `MonitoringToggle` in the header, to the right of the theme
  icon. It opens/closes the monitoring column and only shows when a server is
  connected OR a connect attempt failed (wide viewport + a monitor tab
  available) — the same availability rule the column uses.
- Remove the scattered pin/close icons: delete `PinColumnButton`; drop `onPin`
  from the Logs/Protocol/Network/Console screens and their stream panels; drop
  `onOpenMonitor` from the server list; remove the close button from
  `MonitoringControls`/`MonitoringScreen`.
- Tools screen: remove the "Results will appear here" placeholder pane. Results
  now replace the input form in a single content pane (the Prompts pattern),
  with a top-left X (ToolResultPanel) that dismisses them back to the form;
  form values are preserved for a re-run.
- Prompts screen: the argument form fills the content pane width (drop the 40%
  cap), matching the Tools input.
- LogEntry: add a `compact` two-line layout (time/level/logger on line one,
  message wrapping below) used by the embedded monitoring-column Logs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015sMW1YZXkM7fDkdPtHpE95

* polish(web): tooltips on icon buttons + rename "monitoring column" → "monitoring sidebar" (#1661)

- Add Mantine `Tooltip`s to the icon-only controls: Client settings, Theme
  (dynamic light/dark label), the monitoring-sidebar toggle, the list-level and
  per-entry Expand/Collapse toggles, the Pin/Unpin toggle, and the Replay
  button. Labels mirror each control's existing aria-label.
- Rename the feature term "monitoring column" → "monitoring sidebar" across the
  user-facing labels (Open/Close/Resize), comments, and tests, so the UI calls
  it a sidebar consistently.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015sMW1YZXkM7fDkdPtHpE95

* review: consistent sidebar wording + reuse MonitoringToggleProps (#1661)

Address the two optional notes from the PR #1662 review:
- Make the MonitoringToggle JSDoc voice consistent ("sidebar" throughout,
  no lingering "column").
- Drop ViewHeader's duplicate `MonitorToggleProps` and reuse the element's
  exported `MonitoringToggleProps` as the single source of truth.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015sMW1YZXkM7fDkdPtHpE95

* feat(web): slide-in/out animation for the monitoring-sidebar toggle (#1661)

The header MonitoringToggle now animates in/out via a Mantine Transition whose
in/out styles drive width + margin-left (plus opacity/translateX): as its slot
grows from 0 → the 36px icon, the flex-end header row reflows and pushes the
theme + client-settings buttons one slot to the left; the exit reverses and they
slide back over. A negative margin-left while collapsed cancels the row gap so
the theme icon stays flush-right when the toggle is absent. Only appearance/
disappearance (connect / disconnect / narrow viewport) animates — opening or
closing the sidebar leaves the toggle in place.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015sMW1YZXkM7fDkdPtHpE95

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

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

@@ -1,6 +1,6 @@
 import {
   Alert,
-  Button,
+  CloseButton,
   Group,
   ScrollArea,
   Stack,
@@ -16,6 +16,11 @@ import { ResourceLink } from "../ResourceLink/ResourceLink";
 
 export interface ToolResultPanelProps {
   result: CallToolResult;
+  /**
+   * Dismiss the result and return to the input form (#1661). Mirrors the
+   * Prompts screen: the result replaces the form while present, and the
+   * top-left X flips back to the form so the tool can be re-run.
+   */
   onClear: () => void;
   /**
    * Read-on-demand handler so `resource_link` blocks in the result can fetch
@@ -24,11 +29,6 @@ export interface ToolResultPanelProps {
   onReadResource?: (uri: string) => Promise<ReadResourceResult>;
 }
 
-const ClearButton = Button.withProps({
-  variant: "subtle",
-  size: "sm",
-});
-
 // Outer column: the header pins (`flex: 0 0 auto`) and the scroll region
 // absorbs overflow when the enclosing card hits its `mah`. `mih: 0` lets the
 // flex children shrink below their content's intrinsic height.
@@ -43,6 +43,13 @@ const HeaderRow = Group.withProps({
   flex: "0 0 auto",
 });
 
+// Close button + title, mirroring PromptMessagesDisplay so the two result
+// panels dismiss the same way.
+const HeaderLeft = Group.withProps({
+  gap: "xs",
+  wrap: "nowrap",
+});
+
 // `0 1 auto` + `mih: 0` lets the scroll region shrink (never grow) so a short
 // result doesn't reserve height while a long one scrolls within the card cap.
 const ResultScroll = ScrollArea.withProps({
@@ -66,8 +73,10 @@ export function ToolResultPanel({
   return (
     <PanelStack>
       <HeaderRow>
-        <Title order={4}>Results</Title>
-        <ClearButton onClick={onClear}>Clear</ClearButton>
+        <HeaderLeft>
+          <CloseButton aria-label="Close results" onClick={onClear} />
+          <Title order={4}>Results</Title>
+        </HeaderLeft>
       </HeaderRow>
       <ResultScroll>
         <ResultStack>