Overhaul VirtFusion provider: 20 resources, 30 data sources, multipage pagination

Complete rewrite of the VirtFusion Terraform provider with full API coverage:

- 20 managed resources (server, build, SSH key, user, firewall, IP blocks, etc.)
- 30 data sources (hypervisors, packages, servers, IP blocks, self-service, etc.)
- New HTTP client with proper error handling, query parameter support, and
  automatic multipage pagination via GetAllPages (fetches all pages from
  Laravel-style paginated endpoints and merges into a single response)
- Fixed type mismatches against live API: ServerData.Suspended (int→bool),
  IPBlockData.Type (string→int), PackageData json tags (primaryStorage, etc.),
  ServerData nested CPU/Settings/Resources structure, HypervisorGroupResources
  array response
- Configurable results-per-page (default 300) on all list data sources
- Migrated CI from GitHub Actions to Gitea Actions
- Updated goreleaser config, go.mod dependencies, and examples

Verified against live VirtFusion instance at cp.vps.ezscale.tech:
all data sources return correct data with full pagination support.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

main.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright (c) EZSCALE.
 // SPDX-License-Identifier: MPL-2.0
 
 package main
@@ -15,21 +15,19 @@ import (
 
 // Run "go generate" to format example terraform files and generate the docs for the registry/website
 
-// If you do not have terraform installed, you can remove the formatting command, but its suggested to
+// If you do not have terraform installed, you can remove the formatting command, but it is suggested to
 // ensure the documentation is formatted properly.
 //go:generate terraform fmt -recursive ./examples/
 
 // Run the docs generation tool, check its repository for more information on how it works and how docs
 // can be customized.
-//go:generate go run github.com/hashicorp/terraform-plugin-docs/cmd/tfplugindocs
+//go:generate go run github.com/hashicorp/terraform-plugin-docs/cmd/tfplugindocs generate -provider-name virtfusion
 
 var (
-	// these will be set by the goreleaser configuration
+	// These will be set by the goreleaser configuration
 	// to appropriate values for the compiled binary.
-	version string = "0.0.3"
-
-	// goreleaser can pass other information to the main package, such as the specific commit
 	// https://goreleaser.com/cookbooks/using-main.version/
+	version string = "dev"
 )
 
 func main() {
@@ -39,13 +37,11 @@ func main() {
 	flag.Parse()
 
 	opts := providerserver.ServeOpts{
-		// TODO: Update this string with the published name of your provider.
 		Address: "registry.terraform.io/EZSCALE/virtfusion",
 		Debug:   debug,
 	}
 
 	err := providerserver.Serve(context.Background(), provider.New(version), opts)
-
 	if err != nil {
 		log.Fatal(err.Error())
 	}