fix(ui): resolve lint errors surfaced by the new ESLint config

Use const for a never-reassigned local, drop an unused v-for index,
add a default branch to an exhaustive switch the linter cannot prove,
and remove eslint-disable directives that no longer match enabled rules.

mateclaw-ui/src/components/workflow/WorkflowJsonEditor.vue

@@ -162,7 +162,6 @@ function onEditorMount(editor: monaco.editor.IStandaloneCodeEditor) {
   // is needed because monaco's d.ts marks the static `languages.json`
   // namespace as deprecated even though it's still the official runtime
   // API for jsonDefaults.setDiagnosticsOptions in the v0.55.x line.
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
   const jsonLang = (monaco.languages as any).json
   if (jsonLang?.jsonDefaults) {
     jsonLang.jsonDefaults.setDiagnosticsOptions({

mateclaw-ui/src/composables/chat/useMessages.ts

@@ -132,7 +132,7 @@ export function useMessages(options: UseMessagesOptions = {}): UseMessagesReturn
     if (!message) return
 
     // 获取或创建对应类型的 contentPart
-    let contentParts = [...(message.contentParts || [])]
+    const contentParts = [...(message.contentParts || [])]
     const partIndex = contentParts.findLastIndex(p => p.type === type)
 
     if (partIndex === -1) {

mateclaw-ui/src/composables/wikilink.ts

@@ -53,7 +53,6 @@ const SKIP_TAGS = new Set(['PRE', 'CODE', 'KBD', 'SAMP'])
  * when someone wrote them literally instead of as escape text. If a real slug
  * needs a tab character, that is a backend bug worth surfacing.
  */
-// eslint-disable-next-line no-control-regex
 const DANGEROUS_CHAR_RE = /[<>"'`\n\r\x00-\x1F\x7F]/
 
 /** Slug length cap. Backend `toSlug` produces slugs well under this. */

mateclaw-ui/src/views/ChatConsole.vue

@@ -887,6 +887,7 @@ const modelPromptText = computed<{ title: string; desc: string }>(() => {
     case 'unprobed':
       return { title: t('chat.prompt.unprobed.title'), desc: t('chat.prompt.unprobed.desc') }
     case 'no-models':
+    default:
       return {
         title: t('chat.prompt.noModels.title', { name: p?.name || '' }),
         desc:  t('chat.prompt.noModels.desc'),

mateclaw-ui/src/views/Wiki/components/JobStageBar.vue

@@ -16,7 +16,7 @@
     </div>
     <div class="stage-labels">
       <div
-        v-for="(stage, idx) in stages"
+        v-for="stage in stages"
         :key="stage.key"
         class="stage-label-cell"
       >

mateclaw-ui/src/views/mcp/icons.ts

@@ -10,7 +10,6 @@
  *     The catalog entry's `iconKey` must match the basename.
  */
 
-/* eslint-disable @typescript-eslint/no-explicit-any */
 const rawSvgs = import.meta.glob('@/assets/icons/mcp/*.svg', {
   query: '?raw',
   import: 'default',