Add additional context overflow cases and remove overcorrecting ones

Improvements

• CoreEnsure compaction is more reliable by adding reserve token buffer to provide enough room for input window compaction
• CoreImprove /review prompt to detect behavior changes more explicitly
• CoreImprove Amazon Bedrock check to include container credentials@OpeOginni
• TerminalDefault session sidebar to auto
• DesktopFixed terminal copy/paste functionality
• DesktopCopy path button styles fixed in app
• DesktopUse tracing for logging in desktop application@Brendonovich
• DesktopEnhance Windows app resolution and UI loading states@neriousy
• DesktopImprove desktop app server spawn resilience
• DesktopRead Wayland preference from store in desktop application@Brendonovich
• DesktopAdd WSL backend mode for desktop@Brendonovich
• SDKEncode non-ASCII directory paths in v1 SDK HTTP headers@MrMushrooooom