refactor: consolidate tabs — remove standalone Logs and Config tabs

Logs functionality already exists in Runtime tab (AgentHealth/AgentInstance).
Config functionality moved to Deployments tab ConfigSubTab.
Old routes redirect to /runtime and /apps respectively.
Navigation links updated throughout.

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

ui/src/hooks/useScope.ts

@@ -2,9 +2,9 @@
 import { useParams, useNavigate, useLocation } from 'react-router';
 import { useCallback } from 'react';
 
-export type TabKey = 'exchanges' | 'dashboard' | 'runtime' | 'logs' | 'config' | 'apps';
+export type TabKey = 'exchanges' | 'dashboard' | 'runtime' | 'apps';
 
-const VALID_TABS = new Set<TabKey>(['exchanges', 'dashboard', 'runtime', 'logs', 'config', 'apps']);
+const VALID_TABS = new Set<TabKey>(['exchanges', 'dashboard', 'runtime', 'apps']);
 
 export interface Scope {
   tab: TabKey;