[plan] Migrate workflow commands (run, status, logs, audit) to RunE

[github-actions]

Objective

Migrate core workflow operation commands from Run to RunE for idiomatic error handling.

Context

This is Batch 2 of 5 in the Run→RunE migration. These are the most frequently used commands for workflow management.

Parent Issue: #5300
Depends on: Batch 1 (error formatter setup) must be completed first

Commands to Migrate

1. run - Execute workflows
2. status - Check workflow status
3. logs - Download and view workflow logs
4. audit - Investigate workflow failures

Approach

For each command file:

1. Change Run: to RunE:
2. Remove os.Exit(1) calls
3. Return errors directly instead of handling them inline
4. Keep console.FormatErrorMessage for now (handled by root command)

Pattern Example

Before:

Run: func(cmd *cobra.Command, args []string) {
    if err := cli.RunWorkflow(...); err != nil {
        fmt.Fprintln(os.Stderr, console.FormatErrorMessage(err.Error()))
        os.Exit(1)
    }
}

After:

RunE: func(cmd *cobra.Command, args []string) error {
    return cli.RunWorkflow(...)
}

Files to Modify

• pkg/cli/run_command.go
• pkg/cli/status_command.go
• pkg/cli/logs.go
• pkg/cli/audit_command.go

Acceptance Criteria

• All four command files use RunE instead of Run
• No os.Exit(1) calls in any of these commands
• Errors propagate correctly to Cobra
• Error messages remain user-friendly
• All existing tests pass
• Manual testing confirms correct exit codes

Testing

# Build and test each command
make build

# Test run command
./gh-aw run --help
./gh-aw run nonexistent-workflow  # Should error gracefully

# Test status command
./gh-aw status --help
./gh-aw status

# Test logs command
./gh-aw logs --help
./gh-aw logs

# Test audit command
./gh-aw audit --help
./gh-aw audit 12345

# Run test suite
make test-unit

Related to #5300

AI generated by Plan Command for #5282