fix(charging): validate status and budget phase detection

Do not latch full on transient zero current; require explicit completion. Validate go-e errors and Pico status/timestamps, keep historical events diagnostic, and preserve faults until a fresh successful poll. Budget the 6 A phase probe through the manager and correct stale phase counts conservatively.

Add adapter, regulator, isolated runtime and Symcon regression cases plus migration documentation. Verified: composer check (402 tests, 1875 assertions), 92 pure-function assertions in Symcon 8.0, git diff --check. No plant deployment or hardware commands.

tests/Symcon/modules/LadestationStandAlone.php

@@ -12,7 +12,7 @@ return static function (TestContext $test): void {
             $nrg[4 + $index] = $strom;
         }
         $nrg[11] = $leistung;
-        return json_encode(['car' => $status, 'nrg' => $nrg], JSON_THROW_ON_ERROR);
+        return json_encode(['car' => $status, 'err' => 0, 'nrg' => $nrg], JSON_THROW_ON_ERROR);
     };
 
     $definitionen = [
@@ -37,9 +37,11 @@ return static function (TestContext $test): void {
             'Benutzername' => 'api-user',
             'Passwort' => $testPasswort,
             'Testantwort' => json_encode([
-                'State' => 2,
+                'State' => 4,
                 'ActiveChargingPower' => 11.0,
-                'MaxAllowedChargingCurrent' => 16,
+                'MaxStationCurrent' => 16,
+                'LastSeen' => gmdate('Y-m-d\TH:i:s\Z'),
+                'ValueDate' => gmdate('Y-m-d\TH:i:s\Z'),
             ], JSON_THROW_ON_ERROR),
             'Phasenzahl' => 3,
             'BefehlUrlTeil' => 'current=16000',
@@ -452,9 +454,9 @@ return static function (TestContext $test): void {
         ));
     });
 
-    $test->runCase('Neue Ladestation wird erst nach Freigabe mit Mindeststrom erkannt', static function (
+    $test->runCase('Phasenprobe braucht Managerbudget und deutet Nullleistung nicht als einphasig', static function (
         TestContext $test
-    ) use ($phasenerkennung, $anforderungSenden): void {
+    ) use ($phasenerkennung, $anforderungSenden, $goEAntwort): void {
         $stationId = $phasenerkennung;
         $test->assertSame(
             0,
@@ -471,13 +473,23 @@ return static function (TestContext $test): void {
             0,
             GetValue($test->objectByIdent('Phasenzahl', $stationId))
         );
+        $test->assertSame('[0,4104]', GetValue($test->objectByIdent('LeistungsangebotDiagnose', $stationId)));
+        $test->assertTrue(!str_contains(
+            (string) GetValue($test->objectByIdent('LetzterGeraetebefehl', $stationId)),
+            'amp=6'
+        ), 'Die Freigabe allein ersetzt kein Managerbudget.');
+        $anforderungSenden($stationId, 4104);
         $test->assertTrue(str_contains(
             (string) GetValue($test->objectByIdent('LetzterGeraetebefehl', $stationId)),
             'amp=6'
-        ), 'Nach der Freigabe muss die Mindeststrom-Phasenprobe starten.');
+        ), 'Nach Freigabe und Budget muss die Mindeststrom-Phasenprobe starten.');
 
         IPS_Sleep(2100);
         IPS_RequestAction($stationId, 'Statuszyklus', false);
+        $test->assertSame(0, GetValue($test->objectByIdent('Phasenzahl', $stationId)));
+        $test->assertSame(false, GetValue($test->objectByIdent('FahrzeugGeladen', $stationId)));
+        IPS_SetProperty($stationId, 'Testantwort', $goEAntwort(2, 1380, [6, 0, 0]));
+        IPS_ApplyChanges($stationId);
         $anforderungSenden($stationId, 3680);
         IPS_RequestAction($stationId, 'Statuszyklus', false);