Update monitoring packages to latest versions

- Updated all OpenTelemetry packages to latest versions:
  - opentelemetry-api: 1.27.0 → 1.39.1
  - opentelemetry-sdk: 1.27.0 → 1.39.1
  - opentelemetry-exporter-otlp-proto-grpc: 1.27.0 → 1.39.1
  - opentelemetry-exporter-otlp-proto-http: 1.27.0 → 1.39.1
  - opentelemetry-instrumentation-fastapi: 0.48b0 → 0.60b1
  - opentelemetry-instrumentation-httpx: 0.48b0 → 0.60b1
  - opentelemetry-instrumentation-redis: 0.48b0 → 0.60b1
  - opentelemetry-instrumentation-sqlalchemy: 0.48b0 → 0.60b1

- Removed prometheus-client==0.23.1 from all services
- Unified all services to use the same monitoring package versions

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

shared/monitoring/tracing.py

@@ -22,7 +22,7 @@ def setup_tracing(
     app,
     service_name: str,
     service_version: str = "1.0.0",
-    jaeger_endpoint: str = "http://jaeger-collector.monitoring:4317"
+    otel_endpoint: str = "http://signoz-otel-collector.signoz:4318"
 ):
     """
     Setup OpenTelemetry distributed tracing for a FastAPI service.
@@ -37,7 +37,7 @@ def setup_tracing(
         app: FastAPI application instance
         service_name: Name of the service (e.g., "auth-service")
         service_version: Version of the service
-        jaeger_endpoint: Jaeger collector gRPC endpoint
+        otel_endpoint: OpenTelemetry collector endpoint (SigNoz)
 
     Example:
         from shared.monitoring.tracing import setup_tracing
@@ -58,9 +58,9 @@ def setup_tracing(
         tracer_provider = TracerProvider(resource=resource)
         trace.set_tracer_provider(tracer_provider)
 
-        # Configure OTLP exporter to send to Jaeger
+        # Configure OTLP exporter to send to SigNoz
         otlp_exporter = OTLPSpanExporter(
-            endpoint=jaeger_endpoint,
+            endpoint=otel_endpoint,
             insecure=True  # Use TLS in production
         )
 
@@ -100,7 +100,7 @@ def setup_tracing(
         logger.info(
             "Distributed tracing configured",
             service=service_name,
-            jaeger_endpoint=jaeger_endpoint
+            otel_endpoint=otel_endpoint
         )
 
     except Exception as e: