removeHostByAlias removes a host by its alias from the list of hosts.

removeKVNode removes a key-value node from the host if it exists.

renderTagBadgesForList renders up to two colored tag chips for the server list. If there are more tags, it appends a subtle gray "+N" badge. Returns a

renderTagChips builds colored tag chips for details view.

resolveSSHDestination uses `ssh -G <alias>` to extract HostName and Port from the user's SSH config. Returns host, port, ok where ok=false if resoluti

serversDiffer compares two servers for differences using reflection

setDetach configures SysProcAttr to detach the process on non-Windows platforms.

Note: toggleHelp and rebuildLayout were removed due to hang issues The help panel is now always visible on the right side

shortCommit returns first 7 chars of commit if it looks valid; otherwise empty string.

============================================================================= UI Display Functions (show UI elements/modals) =========================

slicesEqual compares two reflect.Value slices for equality

toDomainServer converts ssh_config.Config to a slice of domain.Server.

updateHostNodes updates the nodes of an existing host with new server details.

updateOrAddKVNode updates an existing key-value node or adds a new one if it doesn't exist.

validateAddressLabels validates labels in a bind address

validateAllFields validates all fields in the current form

validateBindHostname validates a hostname for bind address (more permissive than regular hostname)

validateDynamicForward validates dynamic port forwarding specification

validateFilePath validates a single file path for existence and readability

validateHostLabel validates a single hostname label

validateHostLabels validates each label in a hostname

validateHostname validates a hostname (not IP)

validateKeyPaths validates SSH key file paths (comma-separated)

validatePortForward validates port forwarding specification

writeConfigToFile writes the SSH config content to the specified file

AddServer adds a new server to the repository.

AddServer adds a new server to the SSH config.

DeleteServer removes a server from the repository.

DeleteServer removes a server from the SSH config.

GetError gets the error for a specific field

GetSSHFieldDefaultWithFallback returns the default value for a given SSH field with a fallback value if no default is defined

IsForwarding reports whether there is at least one active forward for alias.

ListServers returns a list of servers sorted with pinned on top.

ListServers returns all servers matching the query pattern. Empty query returns all servers.

NewRepositoryWithFS creates a new SSH config repository with a custom filesystem.

Ping checks if the server is reachable on its SSH port.

RecordSSH increments the SSH access count and updates the last seen timestamp for a server.

SSH starts an interactive SSH session to the given alias using the system's ssh client.

SSHWithArgs runs system ssh with provided extra args (e.g., -L/-R/-D) for the given alias.

SetPinned sets or clears a pin timestamp for the server alias.

SetPinned sets or unsets the pinned status of a server.

StartForward starts ssh port forwarding in the background and tracks the process.

StopForwarding kills all active forward processes for the alias.

UpdateServer updates an existing server with new details.

UpdateServer updates an existing server in the SSH config.

============================================================================= UI State Management (hide UI elements) =================================

handleSaveButton is a wrapper for button callback (no return value)

setDetach is a no-op on Windows because syscall.SysProcAttr does not have Setsid.

validateConnectTimeout validates connection timeout

validateEscapeChar validates escape character format

validateIPQoS validates IPQoS values

validateKnownHostsFiles validates known_hosts file paths (space-separated)

validateNonNegativeNumber validates that a value is a non-negative number

validatePasswordPrompts validates NumberOfPasswordPrompts