closes #4563
* fix(ai): include minimax-cn in cross-provider-handoff matrix * feat(ai): add Xiaomi MiMo provider Adds Xiaomi MiMo as an openai-completions-compatible provider. - packages/ai: register provider in types/KnownProvider, env-api-keys (XIAOMI_API_KEY), generate-models, models.generated.ts, overflow util, README, CHANGELOG - packages/ai/test: extend stream, tokens, abort, empty, context-overflow, overflow, image-tool-result, tool-call-without-result, total-tokens, unicode-surrogate, cross-provider-handoff matrices with Xiaomi - packages/coding-agent: default model (mimo-v2.5-pro), display name (Xiaomi MiMo), CLI env var docs, README, docs/providers.md closes #3912 --------- Co-authored-by: Mario Zechner <badlogicgames@gmail.com>
- Add NON_OVERFLOW_PATTERNS to explicitly exclude known non-overflow errors - Consolidate Cerebras 400/413 no-body check into OVERFLOW_PATTERNS - Format Bedrock errors as ${error.name}: ${error.message} for pattern matching
