Expose ban-time escalation settings in jail detail and config UI

- Backend: Add BantimeEscalation + BantimeEscalationUpdate Pydantic models
  to app/models/config.py; add bantime_escalation field to Jail in jail.py
- Backend: jail_service.get_jail_detail() fetches 7 bantime.* socket commands
  (increment, factor, formula, multipliers, maxtime, rndtime, overalljails)
  and populates bantime_escalation on the returned Jail object
- Backend: config_service.get_jail_config() fetches same 7 commands;
  update_jail_config() writes escalation fields when provided
- Frontend: Add BantimeEscalation + BantimeEscalationUpdate interfaces to
  types/config.ts; extend JailConfig + JailConfigUpdate; extend Jail in
  types/jail.ts
- Frontend: JailDetailPage.tsx adds BantimeEscalationSection component that
  renders only when increment is enabled (shows factor, formula, multipliers,
  max_time, rnd_time, overall_jails)
- Frontend: ConfigPage.tsx JailAccordionPanel adds full escalation edit form
  (Switch for enable/disable, number inputs for factor/max_time/rnd_time,
  text inputs for formula/multipliers, Switch for overall_jails);
  handleSave includes bantime_escalation in the JailConfigUpdate payload
- Tests: Update ConfigPageLogPath.test.tsx mock to include bantime_escalation:null
- Docs: Mark Task 6 as DONE in Tasks.md

frontend/src/pages/JailDetailPage.tsx

@@ -377,6 +377,61 @@ function PatternsSection({ jail }: { jail: Jail }): React.JSX.Element {
   );
 }
 
+// ---------------------------------------------------------------------------
+// Sub-component: Ban-time escalation section
+// ---------------------------------------------------------------------------
+
+function BantimeEscalationSection({ jail }: { jail: Jail }): React.JSX.Element | null {
+  const styles = useStyles();
+  const esc = jail.bantime_escalation;
+  if (!esc?.increment) return null;
+
+  return (
+    <div className={styles.section}>
+      <div className={styles.sectionHeader}>
+        <Text as="h2" size={500} weight="semibold">
+          Ban-time Escalation
+        </Text>
+        <Badge appearance="filled" color="informative">enabled</Badge>
+      </div>
+      <div className={styles.grid}>
+        {esc.factor !== null && (
+          <>
+            <Text className={styles.label}>Factor:</Text>
+            <Text className={styles.mono}>{String(esc.factor)}</Text>
+          </>
+        )}
+        {esc.formula && (
+          <>
+            <Text className={styles.label}>Formula:</Text>
+            <Text className={styles.mono}>{esc.formula}</Text>
+          </>
+        )}
+        {esc.multipliers && (
+          <>
+            <Text className={styles.label}>Multipliers:</Text>
+            <Text className={styles.mono}>{esc.multipliers}</Text>
+          </>
+        )}
+        {esc.max_time !== null && (
+          <>
+            <Text className={styles.label}>Max time:</Text>
+            <Text>{fmtSeconds(esc.max_time)}</Text>
+          </>
+        )}
+        {esc.rnd_time !== null && (
+          <>
+            <Text className={styles.label}>Random jitter:</Text>
+            <Text>{fmtSeconds(esc.rnd_time)}</Text>
+          </>
+        )}
+        <Text className={styles.label}>Count across all jails:</Text>
+        <Text>{esc.overall_jails ? "yes" : "no"}</Text>
+      </div>
+    </div>
+  );
+}
+
 // ---------------------------------------------------------------------------
 // Sub-component: Ignore list section
 // ---------------------------------------------------------------------------
@@ -570,6 +625,7 @@ export function JailDetailPage(): React.JSX.Element {
 
       <JailInfoSection jail={jail} onRefresh={refresh} />
       <PatternsSection jail={jail} />
+      <BantimeEscalationSection jail={jail} />
       <IgnoreListSection
         jailName={name}
         ignoreList={ignoreList}