Faster Sessions, Compaction Fixes, and PowerShell Trust

Note: To get the latest 1.0.x release, download it directly from kiro.dev/downloads. Auto-updates are being rolled out gradually to users.

This release delivers faster session startup, fixes the compaction loop that caused repeated Context limit exceeded errors on large sessions, and adds full PowerShell trust support on Windows. MCP tools now also recover from transient network failures instead of failing silently.