Update ToolHive reference docs for v0.2.8 (#121)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

docs/toolhive/reference/cli/thv_serve.md

@@ -24,6 +24,9 @@ thv serve [flags]
 ### Options
 
 ```
+      --experimental-mcp                EXPERIMENTAL: Enable embedded MCP server for controlling ToolHive
+      --experimental-mcp-host string    EXPERIMENTAL: Host for the embedded MCP server (default "localhost")
+      --experimental-mcp-port string    EXPERIMENTAL: Port for the embedded MCP server (default "4483")
   -h, --help                            help for serve
       --host string                     Host address to bind the server to (default "127.0.0.1")
       --oidc-audience string            Expected audience for the token

static/api-specs/toolhive-api.yaml

@@ -976,11 +976,10 @@ components:
           type: array
           uniqueItems: false
         env_vars:
-          description: Environment variables to set in the container
-          items:
+          additionalProperties:
             type: string
-          type: array
-          uniqueItems: false
+          description: Environment variables to set in the container
+          type: object
         host:
           description: Host to bind to
           type: string