1. migration.go: Set ModelName to userModel when provider matches so
GetModelConfig(userModel) can find the entry. Previously the migration
created entries with the provider name as ModelName (e.g. "moonshot")
but lookup used the model name (e.g. "k2p5"), causing "model not found".
2. openai_compat/provider.go: Preserve reasoning_content in conversation
history. Thinking models (e.g. Kimi K2, DeepSeek-R1) return
reasoning_content which must be echoed back. Without it, APIs return
400: "thinking is enabled but reasoning_content is missing".
3. shell.go: Fix deny pattern regex for format/mkfs/diskpart to use
(?:^|\s) instead of \b to avoid matching --format flags.
Fix path extraction regex to use submatch to avoid matching flags
like -rf as paths.
4. loop.go: Adjust forceCompression mid-point to avoid splitting
tool-call/result message pairs, which causes API errors.
ee5b61884a