Pathways, call logs, tools, and API improvements

Pathways & Routing

• Added a persistent save banner to node and edge drawers so unsaved changes are always visible

Call Logs & Management

• Fixed call logs not correctly displaying pathway context when calls crossed a Transfer Pathway node - Live Translation logs are now captured per call and surfaced in call details, showing source and target language alongside original and translated text

Tools

• Redesigned tool creation with a step-by-step flow covering setup, output variables, and value inputs

API

• Added `timezone` parameter to `GET /v1/calls` for timezone-aware date filtering - Added org-level option to exclude `pathway_logs` from post-call webhook payloads