added retrieve jaeger trace endpoint.

[ajukes]

Added Jaeger endpoint to recent-calls.js.

eslint should be good now.

returns the following payload:

{
	"resourceSpans": [
		{
			"resource": {
				"attributes": [
					{
						"key": "service.name",
						"value": {
							"stringValue": "jambonz-feature-server"
						}
					}
				]
			},
			"instrumentationLibrarySpans": [
				{
					"instrumentationLibrary": {
						"name": "jambonz-feature-server",
						"version": "undefined"
					},
					"spans": [
						{
							"traceId": "Hh12U4y9/tlmRYfpsJQItA==",
							"spanId": "i0XRoVdArS0=",
							"parentSpanId": "ybhSqf4rn8g=",
							"name": "lookupApplication",
							"kind": "SPAN_KIND_INTERNAL",
							"startTimeUnixNano": "1673825927082370000",
							"endTimeUnixNano": "1673825927087515000",
							"attributes": [
								{
									"key": "app.hook",
									"value": {
										"stringValue": "https://myhook.com/voice/start"
									}
								},
								{
									"key": "application_sid",
									"value": {
										"stringValue": "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXX"
									}
								},
								{
									"key": "service.name",
									"value": {
										"stringValue": "jambonz-feature-server"
									}
								},
								{
									"key": "telemetry.sdk.language",
									"value": {
										"stringValue": "nodejs"
									}
								},
								{
									"key": "telemetry.sdk.name",
									"value": {
										"stringValue": "opentelemetry"
									}
								},
								{
									"key": "telemetry.sdk.version",
									"value": {
										"stringValue": "1.8.0"
									}
								},
								{
									"key": "service.version",
									"value": {
										"stringValue": "v0.7.9"
									}
								},
								{
									"key": "internal.span.format",
									"value": {
										"stringValue": "jaeger"
									}
								}
							]
						}
					]
				}
			]
		}
	]
}

[ajukes]

requires PR jambonz/jambonz-infrastructure#44