imageRegistry.ts hit 805 lines after adding the MiniMax image provider (cap is
800). Extract the KIE image-model catalog (largest single provider entry,
~35 models) into its own semantic-family module,
providers/registry/kie/imageModels.ts, following the same pattern already
used for LMARENA_DIRECT_IMAGE_MODELS. imageRegistry.ts now imports
KIE_IMAGE_MODELS instead of inlining the list.
Also update minimax-media-servicekinds.test.ts: getRegistryMediaKinds derives
membership by design from every registry in MEDIA_KIND_REGISTRIES, including
IMAGE_PROVIDERS. Now that minimax is a key in IMAGE_PROVIDERS, it correctly
gains the "image" kind alongside tts/video/music — the same behavior already
asserted for openai in this file. The exact-match assertion is updated to
["image","music","tts","video"]; the other assertions (which only check
.includes for tts/video/music/llm) were already correct and untouched.