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>

internal/provider/data_source_hypervisors.go

@@ -0,0 +1,133 @@
+// Copyright (c) EZSCALE.
+// SPDX-License-Identifier: MPL-2.0
+
+package provider
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+
+	"terraform-provider-virtfusion/internal/client"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-framework/datasource/schema"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+)
+
+var (
+	_ datasource.DataSource              = &HypervisorsDataSource{}
+	_ datasource.DataSourceWithConfigure = &HypervisorsDataSource{}
+)
+
+// NewHypervisorsDataSource returns a new hypervisors data source.
+func NewHypervisorsDataSource() datasource.DataSource {
+	return &HypervisorsDataSource{}
+}
+
+// HypervisorsDataSource defines the data source implementation.
+type HypervisorsDataSource struct {
+	client *client.Client
+}
+
+// HypervisorsDataSourceModel describes the data source data model.
+type HypervisorsDataSourceModel struct {
+	Results     types.Int64           `tfsdk:"results"`
+	Hypervisors []HypervisorItemModel `tfsdk:"hypervisors"`
+}
+
+// HypervisorItemModel describes a single hypervisor in the list.
+type HypervisorItemModel struct {
+	ID       types.Int64  `tfsdk:"id"`
+	Name     types.String `tfsdk:"name"`
+	Type     types.String `tfsdk:"type"`
+	Hostname types.String `tfsdk:"hostname"`
+	Enabled  types.Bool   `tfsdk:"enabled"`
+}
+
+func (d *HypervisorsDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_hypervisors"
+}
+
+func (d *HypervisorsDataSource) Schema(_ context.Context, _ datasource.SchemaRequest, resp *datasource.SchemaResponse) {
+	resp.Schema = schema.Schema{
+		MarkdownDescription: "Fetches all VirtFusion hypervisors.",
+		Attributes: map[string]schema.Attribute{
+			"results": resultsSchemaAttribute(),
+			"hypervisors": schema.ListNestedAttribute{
+				MarkdownDescription: "List of hypervisors.",
+				Computed:            true,
+				NestedObject: schema.NestedAttributeObject{
+					Attributes: map[string]schema.Attribute{
+						"id": schema.Int64Attribute{
+							MarkdownDescription: "The hypervisor ID.",
+							Computed:            true,
+						},
+						"name": schema.StringAttribute{
+							MarkdownDescription: "The hypervisor name.",
+							Computed:            true,
+						},
+						"type": schema.StringAttribute{
+							MarkdownDescription: "The hypervisor type.",
+							Computed:            true,
+						},
+						"hostname": schema.StringAttribute{
+							MarkdownDescription: "The hypervisor hostname.",
+							Computed:            true,
+						},
+						"enabled": schema.BoolAttribute{
+							MarkdownDescription: "Whether the hypervisor is enabled.",
+							Computed:            true,
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+func (d *HypervisorsDataSource) Configure(_ context.Context, req datasource.ConfigureRequest, resp *datasource.ConfigureResponse) {
+	if req.ProviderData == nil {
+		return
+	}
+
+	c, ok := req.ProviderData.(*client.Client)
+	if !ok {
+		resp.Diagnostics.AddError(
+			"Unexpected Data Source Configure Type",
+			fmt.Sprintf("Expected *client.Client, got: %T.", req.ProviderData),
+		)
+		return
+	}
+
+	d.client = c
+}
+
+func (d *HypervisorsDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
+	var data HypervisorsDataSourceModel
+
+	rawResp, err := d.client.GetAllPages(ctx, fmt.Sprintf("/compute/hypervisors?%s", resultsQueryParam(data.Results)))
+	if err != nil {
+		resp.Diagnostics.AddError("Error Reading Hypervisors", err.Error())
+		return
+	}
+
+	var listResp client.HypervisorListResponse
+	if err := json.Unmarshal(rawResp, &listResp); err != nil {
+		resp.Diagnostics.AddError("Error Parsing Hypervisors Response", err.Error())
+		return
+	}
+
+	data.Hypervisors = make([]HypervisorItemModel, len(listResp.Data))
+	for i, h := range listResp.Data {
+		data.Hypervisors[i] = HypervisorItemModel{
+			ID:       types.Int64Value(h.ID),
+			Name:     types.StringValue(h.Name),
+			Type:     types.StringValue(h.Type),
+			Hostname: types.StringValue(h.Hostname),
+			Enabled:  types.BoolValue(h.Enabled),
+		}
+	}
+
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+}