chore: add a server.json to enable publishing to official mcp registry

* remote server added
* OCI options for docker.io and ghcr.io

Author: wolfeidau

server.json

@@ -0,0 +1,105 @@
+{
+  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json",
+  "name": "io.github.buildkite/buildkite-mcp-server",
+  "description": "MCP server exposing Buildkite API data (pipelines, builds, jobs, tests) to AI tooling and editors.",
+  "version": "0.6.1",
+  "status": "active",
+  "repository": {
+    "url": "https://github.com/buildkite/buildkite-mcp-server",
+    "source": "github",
+    "id": "962909011"
+  },
+  "website_url": "https://buildkite.com/docs/apis/mcp-server",
+  "remotes": [
+    {
+      "type": "sse",
+      "url": "https://mcp.buildkite.com/mcp"
+    }
+  ],
+  "packages": [
+    {
+      "registry_type": "oci",
+      "identifier": "docker.io/buildkite/mcp-server:0.6.1",
+      "version": "0.6.1",
+      "transport": {
+        "type": "stdio"
+      },
+      "runtime_hint": "docker",
+      "runtime_arguments": [
+        {
+          "type": "positional",
+          "value": "run"
+        },
+        {
+          "type": "positional",
+          "value": "--rm"
+        },
+        {
+          "type": "positional",
+          "value": "-i"
+        },
+        {
+          "type": "positional",
+          "value": "-e"
+        },
+        {
+          "type": "positional",
+          "value": "BUILDKITE_API_TOKEN"
+        },
+        {
+          "type": "positional",
+          "value": "docker.io/buildkite/mcp-server:0.6.1"
+        }
+      ],
+      "environment_variables": [
+        {
+          "name": "BUILDKITE_API_TOKEN",
+          "description": "Buildkite API token for authentication. Get one from https://buildkite.com/user/api-access-tokens",
+          "required": true
+        }
+      ]
+    },
+    {
+      "registry_type": "oci",
+      "identifier": "ghcr.io/buildkite/buildkite-mcp-server:0.6.1",
+      "version": "0.6.1",
+      "transport": {
+        "type": "stdio"
+      },
+      "runtime_hint": "docker",
+      "runtime_arguments": [
+        {
+          "type": "positional",
+          "value": "run"
+        },
+        {
+          "type": "positional",
+          "value": "--rm"
+        },
+        {
+          "type": "positional",
+          "value": "-i"
+        },
+        {
+          "type": "positional",
+          "value": "-e"
+        },
+        {
+          "type": "positional",
+          "value": "BUILDKITE_API_TOKEN"
+        },
+        {
+          "type": "positional",
+          "value": "ghcr.io/buildkite/buildkite-mcp-server:0.6.1"
+        }
+      ],
+      "environment_variables": [
+        {
+          "name": "BUILDKITE_API_TOKEN",
+          "description": "Buildkite API token for authentication. Get one from https://buildkite.com/user/api-access-tokens",
+          "required": true
+        }
+      ]
+    }
+  ]
+}