fix: Resolve credential helper timeout syntax error

- Remove --timeout parameter from cache helper command
- Git doesn't accept parameters in credential.helper when using -c flag
- Properly handle credential helper commands in both Command.cs and GitProcessPool.cs
- Add special handling for cache and store helpers
- Update description to reflect default 15-minute timeout

Fixes error: 'QueryRemotes failed: unknown option: --timeout=3600'

Author: biancode

src/Commands/Command.cs

@@ -193,10 +193,30 @@ protected ProcessStartInfo CreateGitStartInfo(bool redirect)
             }
 
             var builder = new StringBuilder();
-            builder
-                .Append("--no-pager -c core.quotepath=off -c credential.helper=")
-                .Append(Native.OS.CredentialHelper)
-                .Append(' ');
+            builder.Append("--no-pager -c core.quotepath=off");
+            
+            // Only add credential helper if it's configured
+            if (!string.IsNullOrEmpty(Native.OS.CredentialHelper))
+            {
+                // For the cache helper with timeout, we need special handling
+                if (Native.OS.CredentialHelper == "cache")
+                {
+                    // Set cache with default timeout of 900 seconds (15 minutes)
+                    builder.Append(" -c credential.helper=cache -c credentialcache.ignoreSIGHUP=true");
+                }
+                else if (Native.OS.CredentialHelper.StartsWith("store"))
+                {
+                    // Store helper might have --file parameter
+                    builder.Append($" -c credential.helper=\"{Native.OS.CredentialHelper}\"");
+                }
+                else
+                {
+                    // Other helpers just use the name
+                    builder.Append($" -c credential.helper={Native.OS.CredentialHelper}");
+                }
+            }
+            
+            builder.Append(' ');
 
             switch (Editor)
             {

src/Commands/Optimization/GitProcessPool.cs

@@ -171,7 +171,28 @@ private GitProcessPool()
         private ProcessStartInfo GetOptimizedStartInfo(string workingDirectory, string args)
         {
             // Build the full git command
-            var fullCommand = $"--no-pager -c core.quotepath=off -c credential.helper={Native.OS.CredentialHelper} {args}";
+            var commandBuilder = new System.Text.StringBuilder();
+            commandBuilder.Append("--no-pager -c core.quotepath=off");
+            
+            // Only add credential helper if it's configured
+            if (!string.IsNullOrEmpty(Native.OS.CredentialHelper))
+            {
+                if (Native.OS.CredentialHelper == "cache")
+                {
+                    commandBuilder.Append(" -c credential.helper=cache");
+                }
+                else if (Native.OS.CredentialHelper.StartsWith("store"))
+                {
+                    commandBuilder.Append($" -c credential.helper=\"{Native.OS.CredentialHelper}\"");
+                }
+                else
+                {
+                    commandBuilder.Append($" -c credential.helper={Native.OS.CredentialHelper}");
+                }
+            }
+            
+            commandBuilder.Append(' ').Append(args);
+            var fullCommand = commandBuilder.ToString();
 
             var psi = new ProcessStartInfo
             {

src/Models/CredentialManager.cs

@@ -110,8 +110,8 @@ private static void InitializeHelpers()
             {
                 Type = CredentialHelperType.Cache,
                 Name = "Cache (Memory)",
-                Command = "cache --timeout=3600",
-                Description = "Temporary in-memory storage (expires after 1 hour)",
+                Command = "cache",
+                Description = "Temporary in-memory storage (expires after 15 minutes by default)",
                 IsAvailable = true, // Always available
                 RequiresConfiguration = false
             });
@@ -326,12 +326,20 @@ public static void ConfigureStoreHelper(string path = null)
             }
         }
 
-        public static void ConfigureCacheHelper(int timeoutSeconds = 3600)
+        public static void ConfigureCacheHelper(int timeoutSeconds = 900)
         {
             var helper = GetHelper(CredentialHelperType.Cache);
             if (helper != null)
             {
-                helper.Command = $"cache --timeout={timeoutSeconds}";
+                // The cache helper doesn't take timeout as part of the command
+                // It needs to be configured separately via git config credential.helper 'cache --timeout=X'
+                // For now, we just use the basic 'cache' command
+                helper.Command = "cache";
+                
+                // Note: To properly set timeout, you would need to run:
+                // git config --global credential.helper 'cache --timeout=900'
+                // But since we're passing this via -c flag in each command, 
+                // we can't include the timeout parameter this way
             }
         }