Plugins: Refactor plugin config into separate env var and request scoped services (#83261)

* seperate services for env + req

* merge with main

* fix tests

* undo changes to golden file

* fix linter

* remove unused fields

* split out new config struct

* provide config

* undo go mod changes

* more renaming

* fix tests

* undo bra.toml changes

* update go.work.sum

* undo changes

* trigger

* apply PR feedback

pkg/services/pluginsintegration/pluginconfig/tracing.go

@@ -0,0 +1,30 @@
+package pluginconfig
+
+import (
+	"fmt"
+
+	"github.com/grafana/grafana/pkg/infra/tracing"
+	pCfg "github.com/grafana/grafana/pkg/plugins/config"
+	"github.com/grafana/grafana/pkg/setting"
+)
+
+// newTracingCfg creates a plugins tracing configuration based on the provided Grafana tracing config.
+// If OpenTelemetry (OTLP) is disabled, a zero-value OpenTelemetryCfg is returned.
+func newTracingCfg(grafanaCfg *setting.Cfg) (pCfg.Tracing, error) {
+	ots, err := tracing.ParseSettings(grafanaCfg)
+	if err != nil {
+		return pCfg.Tracing{}, fmt.Errorf("parse settings: %w", err)
+	}
+	if !ots.OTelExporterEnabled() {
+		return pCfg.Tracing{}, nil
+	}
+	return pCfg.Tracing{
+		OpenTelemetry: pCfg.OpenTelemetryCfg{
+			Address:          ots.Address,
+			Propagation:      ots.Propagation,
+			Sampler:          ots.Sampler,
+			SamplerParam:     ots.SamplerParam,
+			SamplerRemoteURL: ots.SamplerRemoteURL,
+		},
+	}, nil
+}