Initial commit: Vultr API v2 Python wrapper with FastAPI server

- vultr_api/: Python library wrapping Vultr API v2
  - 17 resource modules (instances, dns, firewall, vpc, etc.)
  - Pagination support, error handling

- server/: FastAPI REST server
  - All API endpoints exposed via HTTP
  - X-API-Key header authentication
  - Swagger docs at /docs

- Podman quadlet config for systemd deployment

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

server/routers/block_storage.py

@@ -0,0 +1,78 @@
+"""Block Storage router"""
+from fastapi import APIRouter, Depends, Query
+from typing import Optional
+from pydantic import BaseModel
+
+from vultr_api import VultrClient
+from deps import get_client
+
+router = APIRouter()
+
+
+class CreateBlockStorageRequest(BaseModel):
+    region: str
+    size_gb: int
+    label: Optional[str] = None
+    block_type: Optional[str] = None
+
+
+class UpdateBlockStorageRequest(BaseModel):
+    size_gb: Optional[int] = None
+    label: Optional[str] = None
+
+
+class AttachBlockStorageRequest(BaseModel):
+    instance_id: str
+    live: Optional[bool] = True
+
+
+@router.get("")
+async def list_block_storage(
+    per_page: int = Query(25, le=500),
+    cursor: Optional[str] = None,
+    client: VultrClient = Depends(get_client)
+):
+    """List all block storage volumes"""
+    return client.block_storage.list(per_page=per_page, cursor=cursor)
+
+
+@router.get("/all")
+async def list_all_block_storage(client: VultrClient = Depends(get_client)):
+    """List all block storage volumes (auto-paginated)"""
+    return {"blocks": client.block_storage.list_all()}
+
+
+@router.get("/{block_id}")
+async def get_block_storage(block_id: str, client: VultrClient = Depends(get_client)):
+    """Get block storage details"""
+    return client.block_storage.get(block_id)
+
+
+@router.post("")
+async def create_block_storage(req: CreateBlockStorageRequest, client: VultrClient = Depends(get_client)):
+    """Create a block storage volume"""
+    return client.block_storage.create(**req.model_dump(exclude_none=True))
+
+
+@router.patch("/{block_id}")
+async def update_block_storage(block_id: str, req: UpdateBlockStorageRequest, client: VultrClient = Depends(get_client)):
+    """Update a block storage volume"""
+    return client.block_storage.update(block_id, **req.model_dump(exclude_none=True))
+
+
+@router.delete("/{block_id}")
+async def delete_block_storage(block_id: str, client: VultrClient = Depends(get_client)):
+    """Delete a block storage volume"""
+    return client.block_storage.delete(block_id)
+
+
+@router.post("/{block_id}/attach")
+async def attach_block_storage(block_id: str, req: AttachBlockStorageRequest, client: VultrClient = Depends(get_client)):
+    """Attach block storage to an instance"""
+    return client.block_storage.attach(block_id, instance_id=req.instance_id, live=req.live)
+
+
+@router.post("/{block_id}/detach")
+async def detach_block_storage(block_id: str, live: bool = True, client: VultrClient = Depends(get_client)):
+    """Detach block storage from an instance"""
+    return client.block_storage.detach(block_id, live=live)