feat(model-requirements): update unspecified-high to gpt-5.4, add glm-5/k2p5/kimi-k2.5 fallbacks

🤖 Generated with assistance of [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/tools/delegate-task/constants.ts

@@ -214,7 +214,7 @@ export const DEFAULT_CATEGORIES: Record<string, CategoryConfig> = {
   artistry: { model: "google/gemini-3.1-pro", variant: "high" },
   quick: { model: "anthropic/claude-haiku-4-5" },
   "unspecified-low": { model: "anthropic/claude-sonnet-4-6" },
-  "unspecified-high": { model: "anthropic/claude-opus-4-6", variant: "max" },
+  "unspecified-high": { model: "openai/gpt-5.4", variant: "high" },
   writing: { model: "kimi-for-coding/k2p5" },
 }