green: log debug notice when --debug overrides --quiet

When users set both --quiet and --debug (e.g. KOSLI_QUIET=true in CI
plus an ad-hoc --debug flag) the override is silent. Emit a [debug]
line so the behaviour is discoverable.

Slice 3 (user docs) is a no-op in this repo: --quiet's authoritative
in-repo description is the cobra flag help, and kosli docs auto-emits
it. Public CI-recipes content lives in the docs.kosli.com repo.

Refs #864

Author: claude

cmd/kosli/root.go

@@ -478,6 +478,9 @@ func initialize(cmd *cobra.Command, out, errOut io.Writer) error {
 	// a different value now
 	logger.DebugEnabled = global.Debug
 	logger.QuietEnabled = global.Quiet && !global.Debug
+	if global.Quiet && global.Debug {
+		logger.Debug("--quiet is ignored because --debug is set")
+	}
 
 	var err error
 	kosliClient, err = requests.NewKosliClient(global.HttpProxy, global.MaxAPIRetries, global.Debug, logger)

cmd/kosli/root_test.go

@@ -43,6 +43,8 @@ func (suite *RootCommandTestSuite) TestDebugWinsOverQuiet() {
 	suite.NoError(err)
 	suite.Contains(stderr, "[warning]",
 		"--debug should override --quiet, expected warnings in stderr, got: %q", stderr)
+	suite.Contains(stderr, "[debug] --quiet is ignored because --debug is set",
+		"expected debug notice that --quiet was overridden, got: %q", stderr)
 }
 
 // In order for 'go test' to run this suite, we need to create