fix(upgrade): keep Coolify running when Docker reports IPv6 gateways with a prefix

Docker Engine 27.0 to 28.0.0 reports an IPv6 network gateway with its
prefix length (fd00::1/64) until the daemon restarts (moby/moby#49520).
The Docker CLI 29 and Compose 5 in the helper image reject it, so
deployments failed and the upgrade left Coolify stopped.

- Stop the upgrade before it changes containers when the coolify network
  has such a gateway, and tell the user to restart or upgrade Docker.
- Create a new coolify network again without IPv6 when Docker reports
  its gateway with a prefix.
- Report an error, not "Upgrade complete", when the new Coolify
  containers do not start.
- Add the fix to deployment errors that contain this ParseAddr failure.

Fixes #11583

tests/Unit/UpgradeScriptContainerStartTest.php

@@ -0,0 +1,63 @@
+<?php
+
+/**
+ * Runs the detached container restart block of the upgrade script with a fake docker.
+ *
+ * @return array{exitCode: int, status: string}
+ */
+function runUpgradeScriptContainerStart(string $script, int $composeExitCode, bool $coolifyRunning): array
+{
+    $dir = sys_get_temp_dir().'/upgrade-start-'.bin2hex(random_bytes(4));
+    mkdir($dir);
+    touch("{$dir}/status");
+    $source = file_get_contents(getcwd().'/'.$script);
+    preg_match('/^nohup bash -c "\n(.*?)^" >>"\$LOGFILE" 2>&1 &$/ms', $source, $match);
+    $running = $coolifyRunning ? 'true' : 'false';
+
+    $harness = <<<BASH
+        LOGFILE="{$dir}/upgrade.log"
+        STATUS_FILE="{$dir}/status"
+        DOCKER_CONFIG_MOUNT=''
+        REGISTRY_URL='docker.io'
+        LATEST_HELPER_VERSION='1.0.17'
+        LATEST_IMAGE='4.4.7'
+        docker() {
+            case "\$1" in
+                run) return {$composeExitCode} ;;
+                inspect) echo {$running} ;;
+            esac
+        }
+        sleep() { :; }
+        export -f docker sleep
+        bash -c "
+        {$match[1]}"
+        BASH;
+
+    exec('bash -c '.escapeshellarg($harness).' >/dev/null 2>&1', result_code: $exitCode);
+    $status = is_file("{$dir}/status") ? file_get_contents("{$dir}/status") : '';
+    exec('rm -rf '.escapeshellarg($dir));
+
+    return ['exitCode' => $exitCode, 'status' => $status];
+}
+
+it('reports an error when the new Coolify containers do not start', function (string $script) {
+    $result = runUpgradeScriptContainerStart($script, composeExitCode: 1, coolifyRunning: false);
+
+    expect($result['exitCode'])->toBe(1)
+        ->and($result['status'])->toStartWith('error|')
+        ->toContain('upgrade log');
+})->with(['scripts/upgrade.sh', 'other/nightly/upgrade.sh']);
+
+it('completes the upgrade when the coolify container runs but is not healthy within the wait timeout', function (string $script) {
+    $result = runUpgradeScriptContainerStart($script, composeExitCode: 1, coolifyRunning: true);
+
+    expect($result['exitCode'])->toBe(0)
+        ->and($result['status'])->toBe('');
+})->with(['scripts/upgrade.sh', 'other/nightly/upgrade.sh']);
+
+it('completes the upgrade when docker compose up succeeds', function (string $script) {
+    $result = runUpgradeScriptContainerStart($script, composeExitCode: 0, coolifyRunning: true);
+
+    expect($result['exitCode'])->toBe(0)
+        ->and($result['status'])->toBe('');
+})->with(['scripts/upgrade.sh', 'other/nightly/upgrade.sh']);