v0.2.2

SSO reconnect stability fix.

• Prefer newest XshellCore.exe SSH URL before Xshell.exe launcher URLs.
• Keep Xshell.exe URLs only as fallback, so stale launcher tokens do not win over fresh Core tokens.
• Remember failed SSO SSH tokens for a short cooldown during the agent lifetime.
• Avoid retrying the same failed token repeatedly during fallback file and command operations.

Validation:

• go test ./... passed
• Rebuilt opsera.exe and opsera-skill.zip without UPX

SHA256:

• opsera.exe: 122bdecfe83daf47e7622d154f198fbd7151f74ca7ec598bf491292036807ad4
• opsera-skill.zip: b3a78b9af0244a6f78b95a9bb1c5b418f888ff8286bcd6c37d09ebf2b7aa893f