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.

deploy/docker/write-bake-override.sh

@@ -6,6 +6,8 @@ REGISTRY="${REGISTRY:?REGISTRY required}"
 IMAGE_TAG="${IMAGE_TAG:-latest}"
 SHORT_SHA="${SHORT_SHA:-dev}"
 SHA_FULL="${SHA_FULL:-}"
+VERSION="${VERSION:-dev}"
+BUILD_TIME="${BUILD_TIME:-}"
 CACHE_REF_GO="${CACHE_REF_GO:-}"
 CACHE_REF_WEB="${CACHE_REF_WEB:-}"
 cat >"$OUT" <<EOF
@@ -22,6 +24,12 @@ variable "SHORT_SHA" {
 variable "SHA_FULL" {
   default = "${SHA_FULL}"
 }
+variable "VERSION" {
+  default = "${VERSION}"
+}
+variable "BUILD_TIME" {
+  default = "${BUILD_TIME}"
+}
 variable "CACHE_REF_GO" {
   default = "${CACHE_REF_GO}"
 }