Redirect after saving user CSS/JS so changes apply immediately (#9006)

Saving custom CSS/JS rendered the response from the pre-save state (no
Post/Redirect/Get), so the stylesheet cache-busting URL was stale and
the change only appeared after a manual reload, which reads as erratic
behavior. Redirect back to the extension config after save, matching
the pattern used elsewhere in the codebase.

Fixes #8795

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

lib/core-extensions/UserCSS/extension.php

@@ -25,6 +25,11 @@ final class UserCSSExtension extends Minz_Extension {
 			$css_rules = Minz_Request::paramString('css-rules', plaintext: true);
 			$this->saveFile(self::FILENAME, $css_rules);
 			FreshRSS_UserDAO::touch();
+			// Redirect (Post/Redirect/Get) so the next page is built after the save,
+			// with a fresh cache-busting URL for the updated stylesheet
+			Minz_Request::good(_t('feedback.conf.updated'), [
+				'c' => 'extension', 'a' => 'configure', 'params' => ['e' => $this->getName()],
+			]);
 		}
 
 		$this->css_rules = '';

lib/core-extensions/UserCSS/metadata.json

@@ -2,7 +2,7 @@
 	"name": "User CSS",
 	"author": "hkcomori, Marien Fressinaud",
 	"description": "Give possibility to overwrite the CSS with a user-specific rules.",
-	"version": "1.1.1",
+	"version": "1.1.2",
 	"entrypoint": "UserCSS",
 	"type": "user"
 }

lib/core-extensions/UserJS/extension.php

@@ -29,6 +29,11 @@ final class UserJSExtension extends Minz_Extension {
 			$js_rules = Minz_Request::paramString('js-rules', plaintext: true);
 			$this->saveFile(self::FILENAME, $js_rules);
 			FreshRSS_UserDAO::touch();
+			// Redirect (Post/Redirect/Get) so the next page is built after the save,
+			// with a fresh cache-busting URL for the updated script
+			Minz_Request::good(_t('feedback.conf.updated'), [
+				'c' => 'extension', 'a' => 'configure', 'params' => ['e' => $this->getName()],
+			]);
 		}
 
 		$this->js_rules = '';

lib/core-extensions/UserJS/metadata.json

@@ -2,7 +2,7 @@
 	"name": "User JS",
 	"author": "hkcomori, Frans de Jonge",
 	"description": "Apply user JS.",
-	"version": "1.1.2",
+	"version": "1.1.3",
 	"entrypoint": "UserJS",
 	"type": "user"
 }