fix(localization): de.json-Konsistenz-Pass und restliche harte EN-Strings

Queue/Task(s)/Gate in deutschem Fliesstext auf Warteschlange/Aufgabe(n)/
Limit-Stopp vereinheitlicht, columnTask-Keys auf AUFGABE angeglichen,
Kill-Tonalitaet (closeSession/killSessionTip) ehrlich-destruktiv gemacht.
RepoImportModalViewModel.CreateButtonText und alle Installer-Check-Messages
(Git/GitIdentity/WriteAccess/ClaudeCli/ClaudeVersion/ClaudeAuth/
PermissionModeAuto/Ports) ueber Locale-Keys geroutet statt hartem Englisch,
mit dem bestehenden TrExtension.Localizer-Fallback-Muster.

src/ClaudeDo.Installer/Checks/GitIdentityCheck.cs

@@ -1,6 +1,7 @@
 using ClaudeDo.Data.Environment;
 using ClaudeDo.Installer.Core;
 using ClaudeDo.Installer.Core.Interfaces;
+using ClaudeDo.Installer.Localization;
 
 namespace ClaudeDo.Installer.Checks;
 
@@ -25,10 +26,12 @@ public sealed class GitIdentityCheck : IEnvironmentCheck
 
     public async Task<CheckResult> RunAsync(InstallContext ctx, CancellationToken ct)
     {
+        var loc = TrExtension.Localizer;
         var resolved = ExecutableResolver.Resolve("git", _pathOverride, _pathExtOverride);
         if (resolved is null)
         {
-            return CheckResult.Unknown(Id, Severity, "checks.gitIdentity.title", "git was not found — identity could not be checked.");
+            return CheckResult.Unknown(Id, Severity, "checks.gitIdentity.title",
+                loc?["checks.gitIdentity.notFound"] ?? "git was not found — identity could not be checked.");
         }
 
         var name = await ReadConfigAsync(resolved, "user.name", ct);
@@ -48,7 +51,8 @@ public sealed class GitIdentityCheck : IEnvironmentCheck
             _ => "user.email",
         };
 
-        return CheckResult.Fail(Id, Severity, "checks.gitIdentity.title", $"Missing git identity: {missing}.", "checks.gitIdentity.hint");
+        return CheckResult.Fail(Id, Severity, "checks.gitIdentity.title",
+            loc?.Get("checks.gitIdentity.missing", missing) ?? $"Missing git identity: {missing}.", "checks.gitIdentity.hint");
     }
 
     private async Task<string> ReadConfigAsync(ResolvedExecutable resolved, string key, CancellationToken ct)