feat: add create_vault_directory and move_document MCP tools

- create_vault_directory: create directories in a vault (with parents=True).
  Idempotent — returns 'exists' if directory already present; errors
  if the path exists but isn't a directory.
- move_document: move or rename a document within a vault. Creates parent
  directories at destination. Errors if src missing, src isn't a file,
  or dest already exists.

server.py

@@ -530,6 +530,75 @@ def edit_document(vault_name: str, doc_path: str, content: str) -> dict[str, Any
     }
 
 
+@mcp.tool()
+def create_vault_directory(vault_name: str, dir_path: str) -> dict[str, Any]:
+    """FILESYSTEM TOOL (not memory) — Create a new directory in a vault on disk.
+
+    Use before create_document when building out folder structures, or for
+    organizing notes into subdirectories.
+
+    Args:
+        vault_name: Name of the vault.
+        dir_path: Relative path for the new directory (e.g. 'Session-12' or 'NPCs/Dragon-Cult').
+
+    Returns the created directory path.
+    """
+    # Normalize: strip leading slash, handle backslashes
+    clean = dir_path.lstrip("/\\").replace("\\", "/")
+    target = _resolve_doc(vault_name, clean)
+
+    if target.exists():
+        if not target.is_dir():
+            return {"error": f"Path exists but is not a directory: {dir_path}", "vault": vault_name}
+        return {"vault": vault_name, "path": str(target.relative_to(_vault_path(vault_name))).replace("\\", "/"),
+                "action": "exists", "note": "Directory already exists"}
+
+    target.mkdir(parents=True, exist_ok=True)
+
+    return {
+        "vault": vault_name,
+        "path": str(target.relative_to(_vault_path(vault_name))).replace("\\", "/"),
+        "action": "created",
+    }
+
+
+@mcp.tool()
+def move_document(vault_name: str, src_path: str, dest_path: str) -> dict[str, Any]:
+    """FILESYSTEM TOOL (not memory) — Move or rename a document within a vault.
+
+    Moves a document from src_path to dest_path. Both paths are relative to the
+    vault root. Automatically creates parent directories at the destination if
+    they don't exist.
+
+    Args:
+        vault_name: Name of the vault.
+        src_path: Current relative path of the document (e.g. 'Notes/draft.md').
+        dest_path: Target relative path (e.g. 'Archive/draft.md' or 'Notes/final.md').
+
+    Returns the move result with both old and new paths.
+    """
+    src = _resolve_doc(vault_name, src_path)
+    if not src.exists():
+        return {"error": f"Source document does not exist: {src_path}", "vault": vault_name}
+    if not src.is_file():
+        return {"error": f"Source is not a file: {src_path}", "vault": vault_name}
+
+    dest = _resolve_doc(vault_name, dest_path)
+    if dest.exists():
+        return {"error": f"Destination already exists: {dest_path}", "vault": vault_name}
+
+    dest.parent.mkdir(parents=True, exist_ok=True)
+    src.rename(dest)
+
+    vault = _vault_path(vault_name)
+    return {
+        "vault": vault_name,
+        "old_path": src_path.lstrip("/\\").replace("\\", "/"),
+        "new_path": str(dest.relative_to(vault)).replace("\\", "/"),
+        "action": "moved",
+    }
+
+
 # ── Entrypoint ────────────────────────────────────────────────────────────
 
 def main():