Fix Failures tooltip wording; move Service Health to top of Server tab

Task 2: rename 'Failures:' label to 'Failed Attempts:' and update tooltip
to 'Total failed authentication attempts currently tracked by fail2ban
across all active jails' — more accurate than 'Currently failing IPs'.

Task 3: move <ServerHealthSection /> to the top of ServerTab so users
see connectivity status before scrolling through all settings fields.

frontend/src/components/ServerStatusBar.tsx

@@ -139,9 +139,9 @@ export function ServerStatusBar(): React.JSX.Element {
             </div>
           </Tooltip>
 
-          <Tooltip content="Currently failing IPs" relationship="description">
+          <Tooltip content="Total failed authentication attempts currently tracked by fail2ban across all active jails" relationship="description">
             <div className={styles.statGroup}>
-              <Text size={200}>Failures:</Text>
+              <Text size={200}>Failed Attempts:</Text>
               <Text size={200} className={styles.statValue}>
                 {status.total_failures}
               </Text>

frontend/src/components/__tests__/ServerStatusBar.test.tsx

@@ -136,6 +136,8 @@ describe("ServerStatusBar", () => {
     expect(screen.getByText("4")).toBeInTheDocument();
     expect(screen.getByText("21")).toBeInTheDocument();
     expect(screen.getByText("99")).toBeInTheDocument();
+    // Verify the "Failed Attempts:" label (renamed from "Failures:").
+    expect(screen.getByText("Failed Attempts:")).toBeInTheDocument();
   });
 
   it("renders an error message when the status fetch fails", () => {

frontend/src/components/config/ServerTab.tsx

@@ -219,6 +219,10 @@ export function ServerTab(): React.JSX.Element {
 
   return (
     <div>
+      {/* Service Health & Log Viewer section — shown first so users can
+          immediately see whether fail2ban is reachable before editing settings. */}
+      <ServerHealthSection />
+
       <div className={styles.sectionCard}>
         <div style={{ marginBottom: tokens.spacingVerticalS }}>
           <AutoSaveIndicator
@@ -412,8 +416,6 @@ export function ServerTab(): React.JSX.Element {
         </div>
       ) : null}
 
-      {/* Service Health & Log Viewer section */}
-      <ServerHealthSection />
     </div>
   );
 }