feat(frontend): add Mods page with table view, delete, and cleanup

frontend/src/api/client.ts

@@ -1,4 +1,4 @@
-import type { ServerSettings, ServerPaths, ConfigInfo, Modlist, ModlistListItem, ModEntry } from '../types'
+import type { ServerSettings, ServerPaths, ConfigInfo, Modlist, ModlistListItem, ModEntry, ModInfo } from '../types'
 
 const BASE = '/api'
 
@@ -82,6 +82,12 @@ export const steamcmdApi = {
   status: () => request<{ running: boolean }>('/server/steamcmd/status'),
 }
 
+export const modsApi = {
+  list: () => request<ModInfo[]>('/mods'),
+  remove: (path: string) => request<void>('/mods', { method: 'DELETE', body: JSON.stringify({ path }) }),
+  cleanup: () => request<{ deleted: number }>('/mods/cleanup', { method: 'POST' }),
+}
+
 export const logsApi = {
   list: () => request<string[]>('/server/logs'),
   get: (file: string) => fetch(`${BASE}/server/logs/${file}`).then(r => r.text()),