feat: add authz-adapter service and Envoy ext_authz integration

- Implemented authz-adapter deployment and service for Envoy gRPC authorization.
- Created PowerShell script to generate JWK for JWT authentication.
- Documented the integration of ext_authz with user-rpc.ValidateToken in ENVOY_EXT_AUTHZ_ADAPTER.md.
- Added comprehensive Envoy Gateway configuration guide with JWT authentication and access control in ENVOY_GATEWAY_GUIDE.md.

go.mod

@@ -3,26 +3,31 @@ module juwan-backend
 go 1.25.1
 
 require (
+	github.com/envoyproxy/go-control-plane/envoy v1.36.0
 	github.com/golang-jwt/jwt/v4 v4.5.2
 	github.com/google/uuid v1.6.0
 	github.com/lib/pq v1.11.2
 	github.com/redis/go-redis/v9 v9.17.3
+	github.com/zeromicro/go-queue v1.2.2
 	github.com/zeromicro/go-zero v1.10.0
 	golang.org/x/crypto v0.46.0
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217
 	google.golang.org/grpc v1.79.1
 	google.golang.org/protobuf v1.36.11
 )
 
 require (
-	filippo.io/edwards25519 v1.1.0 // indirect
+	filippo.io/edwards25519 v1.1.1 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/cncf/xds/go v0.0.0-20251210132809-ee656c7534f5 // indirect
 	github.com/coreos/go-semver v0.3.1 // indirect
 	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
+	github.com/envoyproxy/protoc-gen-validate v1.3.0 // indirect
 	github.com/fatih/color v1.18.0 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
@@ -37,7 +42,7 @@ require (
 	github.com/google/gofuzz v1.2.0 // indirect
 	github.com/grafana/pyroscope-go v1.2.7 // indirect
 	github.com/grafana/pyroscope-go/godeltaprof v0.1.9 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.1 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.18.0 // indirect
@@ -50,13 +55,13 @@ require (
 	github.com/openzipkin/zipkin-go v0.4.3 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
 	github.com/pierrec/lz4/v4 v4.1.21 // indirect
+	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
 	github.com/prometheus/client_golang v1.23.2 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
 	github.com/prometheus/common v0.66.1 // indirect
 	github.com/prometheus/procfs v0.16.1 // indirect
 	github.com/segmentio/kafka-go v0.4.47 // indirect
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
-	github.com/zeromicro/go-queue v1.2.2 // indirect
 	go.etcd.io/etcd/api/v3 v3.5.15 // indirect
 	go.etcd.io/etcd/client/pkg/v3 v3.5.15 // indirect
 	go.etcd.io/etcd/client/v3 v3.5.15 // indirect
@@ -70,7 +75,7 @@ require (
 	go.opentelemetry.io/otel/metric v1.39.0 // indirect
 	go.opentelemetry.io/otel/sdk v1.39.0 // indirect
 	go.opentelemetry.io/otel/trace v1.39.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.3.1 // indirect
+	go.opentelemetry.io/proto/otlp v1.7.1 // indirect
 	go.uber.org/atomic v1.10.0 // indirect
 	go.uber.org/automaxprocs v1.6.0 // indirect
 	go.uber.org/mock v0.6.0 // indirect
@@ -84,7 +89,6 @@ require (
 	golang.org/x/text v0.32.0 // indirect
 	golang.org/x/time v0.10.0 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect