Implement autobackup-operator controllers, tests, CI and packaging

PVCs and CloudNativePG Clusters need S3 buckets and backup schedules
provisioned consistently. This operator watches the
backups.unkin.net/{schedule,destination} annotations on those objects and
provisions everything needed to back them up, with no new CRDs.

- Add a PVC controller that provisions cephrgw ObjectStoreUser/Bucket/BucketAccess,
  auto-generates a restic repo-password Secret and creates a k8up Schedule scoped
  to the PVC via spec.backup.volumes[].persistentVolumeClaim.claimName.
- Add a CNPG Cluster controller that provisions the same bucket stack, idempotently
  patches spec.backup.barmanObjectStore (leaving a user-set destinationPath alone
  with a Warning event) and creates a ScheduledBackup.
- Resolve destinations through a ConfigMap lookup table; requeue until the
  BucketAccess is Ready before creating schedule resources; own-reference created
  resources and retain bucket data by default.
- Add schedule-mapping helpers (k8up 5-field/shortcut pass-through, CNPG 6-field
  seconds-first) and deterministic, length-bounded name derivation.
- Add unit tests (schedule mapping, name derivation, destination resolution) and
  envtest controller tests for both paths, wiring the external CRDs into envtest.
- Add kubebuilder-generated RBAC, a Dockerfile (distroless/nonroot), Woodpecker
  lint/test/build pipelines and a tag-triggered image push to the artifactapi
  docker-internal registry, plus a version-bump Makefile and deploy manifests.

vendor/github.com/json-iterator/go/any_str.go

@@ -0,0 +1,166 @@
+package jsoniter
+
+import (
+	"fmt"
+	"strconv"
+)
+
+type stringAny struct {
+	baseAny
+	val string
+}
+
+func (any *stringAny) Get(path ...interface{}) Any {
+	if len(path) == 0 {
+		return any
+	}
+	return &invalidAny{baseAny{}, fmt.Errorf("GetIndex %v from simple value", path)}
+}
+
+func (any *stringAny) Parse() *Iterator {
+	return nil
+}
+
+func (any *stringAny) ValueType() ValueType {
+	return StringValue
+}
+
+func (any *stringAny) MustBeValid() Any {
+	return any
+}
+
+func (any *stringAny) LastError() error {
+	return nil
+}
+
+func (any *stringAny) ToBool() bool {
+	str := any.ToString()
+	if str == "0" {
+		return false
+	}
+	for _, c := range str {
+		switch c {
+		case ' ', '\n', '\r', '\t':
+		default:
+			return true
+		}
+	}
+	return false
+}
+
+func (any *stringAny) ToInt() int {
+	return int(any.ToInt64())
+
+}
+
+func (any *stringAny) ToInt32() int32 {
+	return int32(any.ToInt64())
+}
+
+func (any *stringAny) ToInt64() int64 {
+	if any.val == "" {
+		return 0
+	}
+
+	flag := 1
+	startPos := 0
+	if any.val[0] == '+' || any.val[0] == '-' {
+		startPos = 1
+	}
+
+	if any.val[0] == '-' {
+		flag = -1
+	}
+
+	endPos := startPos
+	for i := startPos; i < len(any.val); i++ {
+		if any.val[i] >= '0' && any.val[i] <= '9' {
+			endPos = i + 1
+		} else {
+			break
+		}
+	}
+	parsed, _ := strconv.ParseInt(any.val[startPos:endPos], 10, 64)
+	return int64(flag) * parsed
+}
+
+func (any *stringAny) ToUint() uint {
+	return uint(any.ToUint64())
+}
+
+func (any *stringAny) ToUint32() uint32 {
+	return uint32(any.ToUint64())
+}
+
+func (any *stringAny) ToUint64() uint64 {
+	if any.val == "" {
+		return 0
+	}
+
+	startPos := 0
+
+	if any.val[0] == '-' {
+		return 0
+	}
+	if any.val[0] == '+' {
+		startPos = 1
+	}
+
+	endPos := startPos
+	for i := startPos; i < len(any.val); i++ {
+		if any.val[i] >= '0' && any.val[i] <= '9' {
+			endPos = i + 1
+		} else {
+			break
+		}
+	}
+	parsed, _ := strconv.ParseUint(any.val[startPos:endPos], 10, 64)
+	return parsed
+}
+
+func (any *stringAny) ToFloat32() float32 {
+	return float32(any.ToFloat64())
+}
+
+func (any *stringAny) ToFloat64() float64 {
+	if len(any.val) == 0 {
+		return 0
+	}
+
+	// first char invalid
+	if any.val[0] != '+' && any.val[0] != '-' && (any.val[0] > '9' || any.val[0] < '0') {
+		return 0
+	}
+
+	// extract valid num expression from string
+	// eg 123true => 123, -12.12xxa => -12.12
+	endPos := 1
+	for i := 1; i < len(any.val); i++ {
+		if any.val[i] == '.' || any.val[i] == 'e' || any.val[i] == 'E' || any.val[i] == '+' || any.val[i] == '-' {
+			endPos = i + 1
+			continue
+		}
+
+		// end position is the first char which is not digit
+		if any.val[i] >= '0' && any.val[i] <= '9' {
+			endPos = i + 1
+		} else {
+			endPos = i
+			break
+		}
+	}
+	parsed, _ := strconv.ParseFloat(any.val[:endPos], 64)
+	return parsed
+}
+
+func (any *stringAny) ToString() string {
+	return any.val
+}
+
+func (any *stringAny) WriteTo(stream *Stream) {
+	stream.WriteString(any.val)
+}
+
+func (any *stringAny) GetInterface() interface{} {
+	return any.val
+}