feat(go): add Bazel configuration for Go Gin template

  - Set up rules_go v0.59.0 and gazelle v0.47.0
  - Configure Go SDK 1.25.5
  - Add go_deps extension for dependency management
  - Configure Bazel 8.5.1 with Go-optimized build flags

Author: kangeunchan

go/gin/.bazelrc

@@ -0,0 +1,4 @@
+build --incompatible_enable_cc_toolchain_resolution
+build --enable_platform_specific_config
+
+test --features=race

go/gin/.bazelversion

@@ -0,0 +1 @@
+8.5.1

go/gin/MODULE.bazel

@@ -0,0 +1,13 @@
+module(
+    name = "entrydsm_example_go_gin",
+    version = "0.0.0",
+)
+
+bazel_dep(name = "rules_go", version = "0.59.0")
+bazel_dep(name = "gazelle", version = "0.47.0")
+
+go_sdk = use_extension("@rules_go//go:extensions.bzl", "go_sdk")
+go_sdk.download(version = "1.25.5")
+
+go_deps = use_extension("@gazelle//:extensions.bzl", "go_deps")
+go_deps.from_file(go_mod = "//:go.mod")