Add functional JRPG frame and tools Add full-screen background_2 apertures, functional frame chrome, card-driven details, dual-window tools, live conversion workflows, and bounded cleanup for generated downloads. Co-authored-by: Copilot <[email protected]>

# config

Shared Bazel build configurations and platform definitions.

## Usage

Reference in BUILD files:

```starlark
load("//config:defs.bzl", ...)
```