ECHO Modules Ashfall Terminal hotfix 20260621

Ashfall beta Terminal hotfix module release.

Fixes:

• Terminal ScreenCore native input now falls back to local ScreenCore handling when native routing declines an event.
• Terminal tab navigation switches in place instead of replacing the entire Minecraft screen.
• Command Deck overview avoids the render-thread full route snapshot on first open.
• ScreenCore input/hover uses current layout after dirty data or viewport changes.

Validation:

• .\gradlew.bat :echoscreencore:compileJava :echoterminal:compileJava --no-daemon --console=plain --max-workers=1
• .\gradlew.bat :echoscreencore:test :echoterminal:test --no-daemon --console=plain --max-workers=1
• .\gradlew.bat :echoscreencore:jar :echoterminal:jar :echoashfallprotocol:jar --no-daemon --console=plain --max-workers=1
• node scripts/verify-module-release.mjs --release-dir dist/modules-ashfall-terminal-hotfix-20260621