fix: remove legacy config APIs

Remove stale ToolConfig and ConfigFolder backend/frontend surfaces after the ConfigProfile refactor. Drop dead routers, schemas, model exports, frontend routes, clients, pages, and tests; keep ToolType API compatibility for existing interface/is_builtin response shape.

Quality gates: backend LSP diagnostics passed; backend py_compile passed; backend ruff passed; frontend ToolWorkshopPage test passed. Frontend typecheck blocked by unrelated missing xterm-addon-serialize types.

apps/api/src/services/docker/__init__.py

@@ -7,7 +7,7 @@ from .compose import (
     write_compose_file,
     write_env_file,
 )
-from .config_staging import write_config_files, write_config_folder_files
+from .config_staging import write_config_files
 from .container import (
     connect_container_to_network,
     find_free_port,
@@ -30,7 +30,6 @@ __all__ = [
     "write_env_file",
     "execute_compose_command",
     "write_config_files",
-    "write_config_folder_files",
     "get_container_id",
     "get_container_name",
     "connect_container_to_network",

apps/api/src/services/docker/config_staging.py

@@ -1,11 +1,7 @@
-"""Config folder file staging for Docker instances."""
+"""Config file staging for Docker instances."""
 
-import logging
 from pathlib import Path
 
-logger = logging.getLogger(__name__)
-
-
 def write_config_files(instance_dir: str, files: dict[str, str]) -> None:
     """Write config files to the instance directory.
 
@@ -24,56 +20,3 @@ def write_config_files(instance_dir: str, files: dict[str, str]) -> None:
 
         full_path.parent.mkdir(parents=True, exist_ok=True)
         full_path.write_text(content)
-
-
-def write_config_folder_files(instance_dir: str, folders: list, project_id: str | None = None) -> list[dict]:
-    """Write config folder files to the instance directory and return volume mounts.
-
-    Args:
-        instance_dir: Path to instance directory
-        folders: List of ConfigFolder objects
-        project_id: Optional project ID for applying overrides
-
-    Returns:
-        List of volume mount dicts [{"source": "...", "target": "...", "type": "..."}]
-    """
-    instance_path = Path(instance_dir)
-    volume_mounts = []
-
-    for folder in folders:
-        # Determine mount path (with project override if applicable)
-        mount_path = folder.mount_path
-        files = folder.files.copy()
-
-        if project_id and folder.project_overrides:
-            override = folder.project_overrides.get(str(project_id))
-            if override:
-                if override.get("mount_path"):
-                    mount_path = override["mount_path"]
-                if override.get("files"):
-                    files.update(override["files"])
-
-        # Write files to instance directory
-        folder_dir = instance_path / "volumes" / folder.name
-        folder_dir.mkdir(parents=True, exist_ok=True)
-
-        for file_path, content in files.items():
-            # Security: ensure path doesn't escape folder_dir
-            full_path = folder_dir / file_path
-            try:
-                full_path.resolve().relative_to(folder_dir.resolve())
-            except ValueError:
-                logger.warning("Config folder file path escapes directory: %s", file_path)
-                continue
-
-            full_path.parent.mkdir(parents=True, exist_ok=True)
-            full_path.write_text(content)
-
-        # Add volume mount
-        volume_mounts.append({
-            "source": str(folder_dir),
-            "target": mount_path,
-            "type": "bind",
-        })
-
-    return volume_mounts