feat: implement versioning and release management in the project

- Added automatic versioning based on git tags using semantic-release in Gitea Actions.
- Introduced new API endpoints `GET /version` and `GET /v1/version` to expose build metadata.
- Updated Docker build process to include version and build time information in Go binaries.
- Enhanced documentation with details on release processes and versioning guidelines.
- Integrated version display in the web application for better user visibility.

cmd/evobgp-all/main.go

@@ -19,6 +19,7 @@ import (
 	"evobgp/internal/platform"
 	"evobgp/internal/render"
 	"evobgp/internal/scheduler"
+	"evobgp/internal/version"
 )
 
 // microVPS entrypoint: один процесс — HTTP API и фоновые воркеры scheduler, ingest, render, deploy (общий store и jobs.Registry).
@@ -37,7 +38,7 @@ func main() {
 		log.Fatal(err)
 	}
 	defer srv.Close()
-	observability.SetBuildInfo("0.1.0", strings.TrimSpace(os.Getenv("EVOBGP_GIT_SHA")))
+	observability.SetBuildInfo(version.Version, version.GitSHA)
 
 	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
 	defer stop()

cmd/evobgp-api/main.go

@@ -15,6 +15,7 @@ import (
 	"evobgp/internal/httpapi"
 	"evobgp/internal/observability"
 	"evobgp/internal/platform"
+	"evobgp/internal/version"
 )
 
 func main() {
@@ -34,7 +35,7 @@ func main() {
 	}
 	defer srv.Close()
 
-	observability.SetBuildInfo("0.1.0", strings.TrimSpace(os.Getenv("EVOBGP_GIT_SHA")))
+	observability.SetBuildInfo(version.Version, version.GitSHA)
 	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
 	defer stop()