feat: add java update for linux

src/main/java.ts

@@ -20,6 +20,7 @@ import { emit } from './events'
  */
 
 const JAVA_MAJOR = 21
+const JAVA_MAX = 21
 const MARKER = (): string => join(paths.javaDir, 'managed.json')
 
 /** Exécute `<javaPath> -version` et renvoie la version majeure (ex. 21), ou null. */
@@ -74,7 +75,7 @@ async function findSystemJava(): Promise<string | null> {
   for (const c of candidates) {
     if (!existsSync(c)) continue
     const major = await javaMajorVersion(c)
-    if (major !== null && major >= JAVA_MAJOR) return c
+    if (major !== null && major >= JAVA_MAJOR && major <= JAVA_MAX) return c
   }
   return null
 }
@@ -147,7 +148,12 @@ export async function ensureJava(): Promise<string> {
   if (existsSync(MARKER())) {
     try {
       const { javaPath } = JSON.parse(await readFile(MARKER(), 'utf-8')) as { javaPath: string }
-      if (javaPath && existsSync(javaPath)) return javaPath
+      if (javaPath && existsSync(javaPath)) {
+        const major = await javaMajorVersion(javaPath)
+        if (major !== null && major >= JAVA_MAJOR && major <= JAVA_MAX) return javaPath
+        // Version hors plage (ex: Java 22+) : invalider le cache et re-détecter
+        await rm(MARKER(), { force: true })
+      }
     } catch {
       /* marqueur corrompu : on réinstalle */
     }