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>

vultr_api/resources/plans.py

@@ -0,0 +1,75 @@
+"""
+Plans Resource
+
+Available plan listings
+"""
+
+from typing import Dict, List
+from .base import BaseResource
+
+
+class PlansResource(BaseResource):
+    """
+    Plan listings
+
+    Usage:
+        # List cloud compute plans
+        plans = client.plans.list()
+
+        # List bare metal plans
+        bm_plans = client.plans.list_bare_metal()
+    """
+
+    def list(
+        self,
+        plan_type: str = None,
+        per_page: int = 100,
+        cursor: str = None,
+        os: str = None
+    ) -> Dict:
+        """
+        List cloud compute plans
+
+        Args:
+            plan_type: Filter by type ("all", "vc2", "vhf", "vdc", "voc", "voc-g", "voc-c", "voc-m", "voc-s", "vcg")
+            per_page: Items per page
+            cursor: Pagination cursor
+            os: Filter by supported OS ("windows")
+
+        Returns:
+            Dict with 'plans' list and 'meta' pagination
+        """
+        params = {"per_page": per_page}
+        if plan_type:
+            params["type"] = plan_type
+        if cursor:
+            params["cursor"] = cursor
+        if os:
+            params["os"] = os
+
+        return self.client.get("plans", params=params)
+
+    def list_all(self, plan_type: str = None, os: str = None) -> List[Dict]:
+        """List all plans (auto-paginate)"""
+        params = {}
+        if plan_type:
+            params["type"] = plan_type
+        if os:
+            params["os"] = os
+        return self.client.paginate("plans", "plans", params=params)
+
+    def list_bare_metal(self, per_page: int = 100, cursor: str = None) -> Dict:
+        """
+        List bare metal plans
+
+        Returns:
+            Dict with 'plans' list and 'meta' pagination
+        """
+        params = {"per_page": per_page}
+        if cursor:
+            params["cursor"] = cursor
+        return self.client.get("plans-metal", params=params)
+
+    def list_all_bare_metal(self) -> List[Dict]:
+        """List all bare metal plans (auto-paginate)"""
+        return self.client.paginate("plans-metal", "plans")