feat(tracing): Implement Jaeger/OpenTracing provider with configuration options

- Added Punycode encoding implementation for cookie handling.
- Introduced serialization for cookie jar with JSON support.
- Created a comprehensive README for the tracing provider, detailing configuration and usage.
- Developed a configuration structure for tracing, including sampler and reporter settings.
- Implemented the provider logic to initialize Jaeger tracer with logging capabilities.
- Ensured graceful shutdown of the tracer on application exit.

templates/providers/otel/config.go.tpl

@@ -0,0 +1,73 @@
+package otel
+
+import (
+	"os"
+
+	"go.ipao.vip/atom"
+	"go.ipao.vip/atom/container"
+	"go.ipao.vip/atom/opt"
+)
+
+const DefaultPrefix = "OTEL"
+
+func DefaultProvider() container.ProviderContainer {
+	return container.ProviderContainer{
+		Provider: Provide,
+		Options: []opt.Option{
+			opt.Prefix(DefaultPrefix),
+			opt.Group(atom.GroupInitialName),
+		},
+	}
+}
+
+type Config struct {
+    ServiceName string
+    Version     string
+    Env         string
+
+    EndpointGRPC string
+    EndpointHTTP string
+    Token        string
+
+    // Connection security
+    InsecureGRPC bool // if true, use grpc insecure for OTLP gRPC
+    InsecureHTTP bool // if true, use http insecure for OTLP HTTP
+
+    // Tracing sampler
+    // Sampler: "always" (default) or "ratio"
+    Sampler      string
+    SamplerRatio float64 // used when Sampler == "ratio"; 0..1
+
+    // Tracing batcher options (milliseconds)
+    BatchTimeoutMs      uint
+    ExportTimeoutMs     uint
+    MaxQueueSize        int
+    MaxExportBatchSize  int
+
+    // Metrics options (milliseconds)
+    MetricReaderIntervalMs        uint // export interval for PeriodicReader
+    RuntimeReadMemStatsIntervalMs uint // runtime metrics min read interval
+}
+
+func (c *Config) format() {
+	if c.ServiceName == "" {
+		c.ServiceName = os.Getenv("SERVICE_NAME")
+		if c.ServiceName == "" {
+			c.ServiceName = "unknown"
+		}
+	}
+
+	if c.Version == "" {
+		c.Version = os.Getenv("SERVICE_VERSION")
+		if c.Version == "" {
+			c.Version = "unknown"
+		}
+	}
+
+	if c.Env == "" {
+		c.Env = os.Getenv("DEPLOY_ENVIRONMENT")
+		if c.Env == "" {
+			c.Env = "unknown"
+		}
+	}
+}