fix security scanner issue

Author: pujitm

api/src/unraid-api/unraid-file-modifier/modifications/hosts.modification.ts

@@ -14,9 +14,13 @@ export default class HostsModification extends FileModification {
     protected async generatePatch(overridePath?: string): Promise<string> {
         const originalContent = await readFile(this.filePath, 'utf8');
 
+        // Use a case-insensitive word-boundary regex so the hostname must appear as an independent token
+        // prevents partial string & look-alike conflicts such as "keys.lime-technology.com.example.com"
+        const hostPattern = /\bkeys\.lime-technology\.com\b/i;
+
         const newContent = originalContent
             .split('\n')
-            .filter((line) => !line.includes('keys.lime-technology.com'))
+            .filter((line) => !hostPattern.test(line))
             .join('\n');
 
         return this.createPatchWithDiff(overridePath ?? this.filePath, originalContent, newContent);