- Add sanitizeToolCallId() to fix Cloud Code Assist tool call ID validation
- Apply sanitization in sanitizeSessionMessagesImages() for toolResult and assistant messages
- Add legacy CONFIG_PATH_CLAWDIS and STATE_DIR_CLAWDIS exports for backward compatibility
- Resolves Cloud Code Assist rejection of invalid tool call IDs with pipe characters
- Fixes missing session export functions that were blocking system startup
Addresses Cloud Code Assist API 400 errors from invalid tool call IDs like 'call_abc123|item_456'