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>

.goreleaser.yml

@@ -1,60 +1,66 @@
-# Visit https://goreleaser.com for documentation on how to customize this
-# behavior.
+version: 2
+
 before:
   hooks:
-    # this is just an example and not a requirement for provider building/publishing
     - go mod tidy
+
 builds:
-- env:
-    # goreleaser does not work with CGO, it could also complicate
-    # usage by users in CI/CD systems like Terraform Cloud where
-    # they are unable to install libraries.
-    - CGO_ENABLED=0
-  mod_timestamp: '{{ .CommitTimestamp }}'
-  flags:
-    - -trimpath
-  ldflags:
-    - '-s -w -X main.version={{.Version}} -X main.commit={{.Commit}}'
-  goos:
-    - freebsd
-    - windows
-    - linux
-    - darwin
-  goarch:
-    - amd64
-    - '386'
-    - arm
-    - arm64
-  ignore:
-    - goos: darwin
-      goarch: '386'
-  binary: '{{ .ProjectName }}_v{{ .Version }}'
+  - env:
+      - CGO_ENABLED=0
+    mod_timestamp: '{{ .CommitTimestamp }}'
+    flags:
+      - -trimpath
+    ldflags:
+      - '-s -w -X main.version={{.Version}} -X main.commit={{.Commit}}'
+    goos:
+      - freebsd
+      - windows
+      - linux
+      - darwin
+    goarch:
+      - amd64
+      - '386'
+      - arm
+      - arm64
+    ignore:
+      - goos: darwin
+        goarch: '386'
+    binary: '{{ .ProjectName }}_v{{ .Version }}'
+
 archives:
-- format: zip
-  name_template: '{{ .ProjectName }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}'
+  - format: zip
+    name_template: '{{ .ProjectName }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}'
+
 checksum:
   extra_files:
     - glob: 'terraform-registry-manifest.json'
       name_template: '{{ .ProjectName }}_{{ .Version }}_manifest.json'
   name_template: '{{ .ProjectName }}_{{ .Version }}_SHA256SUMS'
   algorithm: sha256
+
 signs:
   - artifacts: checksum
     args:
-      # if you are using this in a GitHub action or some other automated pipeline, you 
-      # need to pass the batch flag to indicate its not interactive.
       - "--batch"
       - "--local-user"
-      - "{{ .Env.GPG_FINGERPRINT }}" # set this environment variable for your signing key
+      - "{{ .Env.GPG_FINGERPRINT }}"
       - "--output"
       - "${signature}"
       - "--detach-sign"
       - "${artifact}"
+
 release:
+  github:
+    owner: EZSCALE
+    name: terraform-provider-virtfusion
   extra_files:
     - glob: 'terraform-registry-manifest.json'
       name_template: '{{ .ProjectName }}_{{ .Version }}_manifest.json'
-  # If you want to manually examine the release before its live, uncomment this line:
-  # draft: true
+
 changelog:
-  skip: true
+  sort: asc
+  filters:
+    exclude:
+      - '^docs:'
+      - '^test:'
+      - '^ci:'