fix(search): serve a fresh search index after dev updates

Re-indexing only invalidated the bare @localSearchIndex module; the
per-locale modules that carry the data were still served from the
transform cache, and the browser module cache pinned them too. Version
the locale import in dev so every index update loads fresh data.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/node/plugins/localSearchPlugin.ts

@@ -82,8 +82,13 @@ export async function localSearchPlugin(
   let server: ViteDevServer | undefined
   let pending: Promise<void>
 
+  let indexVersion = 0
+
   function onIndexUpdated() {
     if (!server) return
+    // bust the per-locale import urls emitted below — the browser module
+    // cache and the transform cache would otherwise serve the old index
+    indexVersion++
     server.moduleGraph.onFileChange(LOCAL_SEARCH_INDEX_REQUEST_PATH)
     // HMR
     const mod = server.moduleGraph.getModuleById(
@@ -199,7 +204,9 @@ export async function localSearchPlugin(
             records.push(
               `${JSON.stringify(
                 locale
-              )}: () => import('${LOCAL_SEARCH_INDEX_ID}${locale}')`
+              )}: () => import('${LOCAL_SEARCH_INDEX_ID}${locale}${
+                server ? `?v=${indexVersion}` : ''
+              }')`
             )
           }
           return `export default {${records.join(',')}}`
@@ -208,7 +215,9 @@ export async function localSearchPlugin(
           return `export default ${JSON.stringify(
             JSON.stringify(
               indexByLocales.get(
-                id.replace(LOCAL_SEARCH_INDEX_REQUEST_PATH, '')
+                id
+                  .replace(LOCAL_SEARCH_INDEX_REQUEST_PATH, '')
+                  .replace(/\?.*$/, '')
               ) ?? {}
             )
           )}`