Regenerate docs, update CHANGELOG for v1.0.0, clean up registry manifest

- Regenerated docs/ via tfplugindocs: 51 files covering all 20 resources
  and 30 data sources with auto-extracted schemas and examples
- Removed stale docs for old resources (build.md, ssh.md)
- CHANGELOG.md: added v1.0.0 entry with full feature list, breaking
  changes, and security notes
- terraform-registry-manifest.json: confirmed protocol_versions ["6.0"]
  is correct for Terraform Plugin Framework

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

docs/data-sources/server.md

@@ -0,0 +1,42 @@
+---
+# generated by https://github.com/hashicorp/terraform-plugin-docs
+page_title: "virtfusion_server Data Source - virtfusion"
+subcategory: ""
+description: |-
+  Use this data source to read a single VirtFusion server by ID.
+---
+
+# virtfusion_server (Data Source)
+
+Use this data source to read a single VirtFusion server by ID.
+
+## Example Usage
+
+```terraform
+data "virtfusion_server" "example" {
+  id = 1
+}
+
+output "server_name" {
+  value = data.virtfusion_server.example.name
+}
+```
+
+<!-- schema generated by tfplugindocs -->
+## Schema
+
+### Required
+
+- `id` (Number) The server ID.
+
+### Read-Only
+
+- `cpu_cores` (Number) The number of CPU cores.
+- `hostname` (String) The server hostname.
+- `hypervisor_id` (Number) The hypervisor ID where the server is hosted.
+- `memory` (Number) The memory size in MB.
+- `name` (String) The server display name.
+- `owner_id` (Number) The owner (user) ID who owns the server.
+- `storage` (Number) The storage size in GB.
+- `suspended` (Boolean) Whether the server is suspended.
+- `uuid` (String) The server UUID.