Make API endpoints compatible with Vultr API v2 format

- Change auth from X-API-Key header to Authorization: Bearer format
- Add /v2 prefix to all endpoints to match Vultr API URL structure
- Fix router paths (dns, firewall) to avoid duplicate path segments
- Split VPC 2.0 into separate router at /v2/vpc2

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

server/routers/vpc2.py

@@ -0,0 +1,83 @@
+"""VPC 2.0 router"""
+from fastapi import APIRouter, Depends, Query
+from typing import Optional, List
+from pydantic import BaseModel
+
+from vultr_api import VultrClient
+from deps import get_client
+
+router = APIRouter()
+
+
+class CreateVPC2Request(BaseModel):
+    region: str
+    description: Optional[str] = None
+    ip_block: Optional[str] = None
+    prefix_length: Optional[int] = None
+
+
+class AttachVPC2Request(BaseModel):
+    nodes: List[dict]  # [{"id": "instance_id", "ip_address": "10.0.0.1"}, ...]
+
+
+@router.get("")
+async def list_vpc2s(
+    per_page: int = Query(25, le=500),
+    cursor: Optional[str] = None,
+    client: VultrClient = Depends(get_client)
+):
+    """List all VPC 2.0 networks"""
+    return client.vpc.list_vpc2(per_page=per_page, cursor=cursor)
+
+
+@router.get("/all")
+async def list_all_vpc2s(client: VultrClient = Depends(get_client)):
+    """List all VPC 2.0 networks (auto-paginated)"""
+    return {"vpcs": client.vpc.list_all_vpc2()}
+
+
+@router.get("/{vpc_id}")
+async def get_vpc2(vpc_id: str, client: VultrClient = Depends(get_client)):
+    """Get VPC 2.0 details"""
+    return client.vpc.get_vpc2(vpc_id)
+
+
+@router.post("")
+async def create_vpc2(req: CreateVPC2Request, client: VultrClient = Depends(get_client)):
+    """Create a VPC 2.0 network"""
+    return client.vpc.create_vpc2(**req.model_dump(exclude_none=True))
+
+
+@router.patch("/{vpc_id}")
+async def update_vpc2(vpc_id: str, description: str, client: VultrClient = Depends(get_client)):
+    """Update a VPC 2.0 network"""
+    return client.vpc.update_vpc2(vpc_id, description=description)
+
+
+@router.delete("/{vpc_id}")
+async def delete_vpc2(vpc_id: str, client: VultrClient = Depends(get_client)):
+    """Delete a VPC 2.0 network"""
+    return client.vpc.delete_vpc2(vpc_id)
+
+
+@router.get("/{vpc_id}/nodes")
+async def list_vpc2_nodes(
+    vpc_id: str,
+    per_page: int = Query(25, le=500),
+    cursor: Optional[str] = None,
+    client: VultrClient = Depends(get_client)
+):
+    """List nodes attached to a VPC 2.0"""
+    return client.vpc.list_vpc2_nodes(vpc_id, per_page=per_page, cursor=cursor)
+
+
+@router.post("/{vpc_id}/nodes/attach")
+async def attach_vpc2_nodes(vpc_id: str, req: AttachVPC2Request, client: VultrClient = Depends(get_client)):
+    """Attach nodes to a VPC 2.0"""
+    return client.vpc.attach_vpc2_nodes(vpc_id, nodes=req.nodes)
+
+
+@router.post("/{vpc_id}/nodes/detach")
+async def detach_vpc2_nodes(vpc_id: str, req: AttachVPC2Request, client: VultrClient = Depends(get_client)):
+    """Detach nodes from a VPC 2.0"""
+    return client.vpc.detach_vpc2_nodes(vpc_id, nodes=req.nodes)