feature: enable cmd timeout flag

[tschaefer]

No description provided.

[Copilot]

Pull request overview

This pull request enables a configurable command timeout flag for SSH operations, replacing the previous hardcoded 300-second timeout. The changes introduce context-based timeout management throughout the codebase, allowing users to customize timeout behavior via a --run.cmd-timeout flag.

Changes:

• Added --run.cmd-timeout flag (default: 300 seconds) to control SSH command and copy operation timeouts
• Refactored Target interface to accept context parameters for Run and Copy operations
• Introduced Options struct pattern for constructor parameters across target, service, and agent packages
• Added context propagation from root command through all service and agent operations
• Improved error handling for JSON marshaling operations

Reviewed changes

Copilot reviewed 49 out of 49 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
cmd/root.go	Added persistent --run.cmd-timeout flag and signal-based context cancellation
internal/target/target.go	Updated Target interface to accept context, introduced Options struct, renamed NewTarget to New
internal/target/local.go	Updated to use context-based timeouts for local command execution
internal/target/remote.go	Updated to use context-based timeouts for remote SSH operations
internal/service/service.go	Added context field and Options struct for service configuration
internal/agent/agent.go	Added context field and Options struct for agent configuration
cmd/service/*.go	Updated all service commands to pass timeout via Options
cmd/agent/*.go	Updated all agent commands to pass timeout via Options
internal/service/*.go	Updated all service operations to use context from service instance
internal/agent/*.go	Updated all agent operations to use context from agent instance
*_test.go	Updated tests to use new API with Options struct and context
cmd/errors/errors.go	Added error handling for JSON marshaling failures