Migrate to new golang-commons config API

[aaronschweig]

Summary

The github.com/platform-mesh/golang-commons/config package has breaking changes that require updates to this repository.

Breaking Changes

• NewDefaultConfig() signature changed - no longer returns viper or error
• BindConfigToFlags() removed - use AddFlags() method instead
• Environment variables no longer supported as substitutes for flags

Changes Required

Update cmd/root.go to use the new config API:

Before:

v, defaultCfg, err := config.NewDefaultConfig(rootCmd)
if err != nil { ... }
err = config.BindConfigToFlags(v, operatorCmd, &operatorCfg)

After:

defaultCfg := config.NewDefaultConfig()
defaultCfg.AddFlags(cmd.Flags())

Service-specific configuration should be migrated to the same pattern with NewX() constructor and AddFlags() method.

Files to Update

• cmd/root.go