refactor: apply TYPO3 13 Rector and Fractor migrations

Automated migrations from rector.php and fractor.php (TCA, Extbase
controllers and annotations, ViewHelpers, QueryBuilder, FlexForms,
TypoScript conditions).

Plugins stay list_type plugins: Rector switched them to content
element types, which needs a tt_content migration. That is deferred to
the TYPO3 14 step, where list_type is removed.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/ep_theme/Configuration/TypoScript/setup.typoscript

@@ -100,15 +100,13 @@ tt_content.menu_section.dataProcessing.10.includeNotInMenu = 1
 config {
     compressJs = 1
     compressCss = 1
-    typolinkCheckRootline = 1
-    typolinkEnableLinksAcrossDomains = 1
     sendCacheHeaders = 1
     content_from_pid_allowOutsideDomain = 1
     inlineStyle2TempFile = 0
     additionalHeaders {
-#        10 {
-#            header = Content-Security-Policy: default-src 'self' 'unsafe-inline'; connect-src 'self' https://my.ep-reisen.de/;
-#        }
+        #        10 {
+        #            header = Content-Security-Policy: default-src 'self' 'unsafe-inline'; connect-src 'self' https://my.ep-reisen.de/;
+        #        }
         20 {
             header = Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
         }