feat: add wordvibe_build_page (Word Page Builder over MCP)

Wraps the site tool wpb_build_page: build or update a Word Page from {kind, html} sections. The page lands as a native Word Page (payload in post meta, builder-rendered), so it stays editable and undoable in the builder. Also documents the builder tools in the bundled skill and README.

tools.py

@@ -212,3 +212,41 @@ def search(args: dict, **kwargs) -> str:
     if args.get("regex"):
         payload["regex"] = True
     return _call_tool(args.get("site") or "", "codebase_search", payload)
+
+
+def build_page(args: dict, **kwargs) -> str:
+    """Build/update a Word Page Builder page (wraps the site's wpb_build_page tool)."""
+    title = str(args.get("title") or "").strip()
+    if not title:
+        return _err("Missing 'title'.")
+
+    sections = args.get("sections")
+    if isinstance(sections, str):
+        try:
+            sections = json.loads(sections)
+        except Exception as exc:  # noqa: BLE001
+            return _err(f"'sections' must be a JSON array: {exc}")
+    if not isinstance(sections, list) or not sections:
+        return _err("'sections' must be a non-empty array of {kind, html}.")
+
+    clean = []
+    for item in sections:
+        if isinstance(item, str):
+            clean.append({"kind": "custom", "html": item})
+            continue
+        if not isinstance(item, dict) or "html" not in item:
+            return _err("Each section needs {kind, html}.")
+        clean.append({"kind": str(item.get("kind") or "custom"), "html": str(item.get("html") or "")})
+
+    payload = {"title": title, "sections": clean}
+    for key in ("slug", "status"):
+        val = str(args.get(key) or "").strip()
+        if val:
+            payload[key] = val
+    if args.get("post_id"):
+        try:
+            payload["post_id"] = int(args["post_id"])
+        except Exception:  # noqa: BLE001
+            return _err("'post_id' must be an integer.")
+
+    return _call_tool(args.get("site") or "", "wpb_build_page", payload)