QUAL Use phan to help detect new issues (#27706)

* Qual: Add phan flow

- Add phan configuration (config, baseline, stubs);
- Add github action;
- Update apstats.php.

* Add directives to ignore false phan notices

* Qual: Add typing hints for extrafields TPL files

# Qual: Add typing hints for extrafields TPL files

Add typing hints for phan on view files

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Co-authored-by: Laurent Destailleur <eldy@destailleur.fr>

htdocs/api/class/api_documents.class.php

@@ -761,6 +761,7 @@ class Documents extends DolibarrApi
 
 			if (is_object($object)) {
 				if ($fetchbyid) {
+					// @phan-suppress-next-line PhanPluginSuspiciousParamPosition
 					$result = $object->fetch($ref);
 				} else {
 					$result = $object->fetch('', $ref);