Bug: `repos/get-content` response model uncorrect

[yanyongyu]

schema:
  oneOf:
    - "$ref": "#/components/schemas/content-directory"
    - "$ref": "#/components/schemas/content-file"
    - "$ref": "#/components/schemas/content-symlink"
    - "$ref": "#/components/schemas/content-submodule"

[yanyongyu]

fixed in latest commit. json is now the primary type.