Fixed
- Reported MCP servers still connecting after a zero-result tool search, so agents retry instead of treating the result as definitive. Thanks @Leon69924 for issue #316.
- Rejected malformed MCP config server entries and persisted OAuth credential records at their trust boundaries, so invalid local state fails before it reaches runtime connection or token code.
- Sized OAuth credential chunks below the Windows Credential Manager per-value limit, so oversized OAuth records persist on Windows instead of failing at every payload size. The previous 1800-character chunk size exceeded the 1280-character ceiling, which left the chunking added in #246 ineffective on Windows. Thanks @CrazyCoder for PR #318.