feat: auto generated files and new structure (#4)

## Description

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At least please give us some description what you are trying to achieve and why your change is needed. -->

relates to #1234

## Checklist

- [ ] Issue was linked above
- [ ] Code format was applied: `make fmt`
- [ ] Examples were added / adjusted (see `examples/` directory)
- [x] Docs are up-to-date: `make generate-docs` (will be checked by CI)
- [ ] Unit tests got implemented or updated
- [ ] Acceptance tests got implemented or updated (see e.g. [here](f5f99d1709/stackit/internal/services/dns/dns_acc_test.go))
- [x] Unit tests are passing: `make test` (will be checked by CI)
- [x] No linter issues: `make lint` (will be checked by CI)

Reviewed-on: #4
Reviewed-by: Andre_Harms <andre.harms@stackit.cloud>
Co-authored-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>
Co-committed-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>

go.mod

@@ -1,6 +1,6 @@
 module github.com/mhenselin/terraform-provider-stackitprivatepreview
 
-go 1.25.5
+go 1.25.6
 
 require (
 	github.com/google/go-cmp v0.7.0
@@ -10,18 +10,23 @@ require (
 	github.com/hashicorp/terraform-plugin-go v0.29.0
 	github.com/hashicorp/terraform-plugin-log v0.10.0
 	github.com/hashicorp/terraform-plugin-testing v1.14.0
-	github.com/stackitcloud/stackit-sdk-go/core v0.20.1
-	github.com/stackitcloud/stackit-sdk-go/services/sqlserverflex v1.4.0
+	github.com/iancoleman/strcase v0.3.0
+	github.com/ldez/go-git-cmd-wrapper/v2 v2.9.1
+	github.com/spf13/cobra v1.10.2
+	github.com/stackitcloud/stackit-sdk-go/core v0.21.0
+	github.com/stackitcloud/stackit-sdk-go/services/iaasalpha v0.1.23-alpha
+	github.com/stackitcloud/stackit-sdk-go/services/sqlserverflex v1.4.1
 	github.com/teambition/rrule-go v1.8.2
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	github.com/hashicorp/go-retryablehttp v0.7.8 // indirect
-	github.com/kr/text v0.2.0 // indirect
-	golang.org/x/telemetry v0.0.0-20260109210033-bd525da824e2 // indirect
+	golang.org/x/telemetry v0.0.0-20260116145544-c6413dc483f5 // indirect
 )
 
 require (
+	dario.cat/mergo v1.0.1 // indirect
 	github.com/ProtonMail/go-crypto v1.3.0 // indirect
 	github.com/agext/levenshtein v1.2.3 // indirect
 	github.com/apparentlymart/go-textseg/v15 v15.0.0 // indirect
@@ -45,8 +50,10 @@ require (
 	github.com/hashicorp/terraform-json v0.27.2 // indirect
 	github.com/hashicorp/terraform-plugin-sdk/v2 v2.38.1 // indirect
 	github.com/hashicorp/terraform-registry-address v0.4.0 // indirect
-	github.com/hashicorp/terraform-svchost v0.1.1 // indirect
+	github.com/hashicorp/terraform-svchost v0.2.0 // indirect
 	github.com/hashicorp/yamux v0.1.2 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/kr/text v0.2.0 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect
@@ -55,19 +62,21 @@ require (
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/oklog/run v1.2.0 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
+	github.com/stretchr/testify v1.11.1 // indirect
 	github.com/vmihailenco/msgpack v4.0.4+incompatible // indirect
 	github.com/vmihailenco/msgpack/v5 v5.4.1 // indirect
 	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
 	github.com/zclconf/go-cty v1.17.0 // indirect
-	golang.org/x/crypto v0.46.0 // indirect
+	golang.org/x/crypto v0.47.0 // indirect
 	golang.org/x/mod v0.32.0 // indirect
-	golang.org/x/net v0.48.0 // indirect
+	golang.org/x/net v0.49.0 // indirect
 	golang.org/x/sync v0.19.0 // indirect
 	golang.org/x/sys v0.40.0 // indirect
 	golang.org/x/text v0.33.0 // indirect
-	golang.org/x/tools v0.40.0 // indirect
+	golang.org/x/tools v0.41.0 // indirect
 	google.golang.org/appengine v1.6.8 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20251222181119-0a764e51fe1b // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260120221211-b8f7ae30c516 // indirect
 	google.golang.org/grpc v1.78.0 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
 )