v0.5.0

Added

• Durable trip progress (INT-416): each conversation's turn (identity, action, status,
  timestamps, deadline, active seconds, cancel request/outcome) and approval history are
  persisted in the existing store, and the new trip_progress MCP tool reports every leg
  revision's stage, the pending or cancelled approval, completed legs and uncertain
  generations without invoking the model or a provider. After a restart, unfinished work is
  reported as interrupted instead of running.
• Cooperative cancellation and turn deadlines (INT-417): the new cancel_trip MCP tool stops
  queued or running work at the next safe point (model/tool boundary, browser queue wait or
  immediately before Generate), withdraws a pending approval and approved revisions that were
  never clicked, and keeps completed plans and briefings. A Generate click already made is
  never interrupted or repeated; it is reported as generated or uncertain.
  IFD_TURN_DEADLINE_SECONDS (default 600) bounds each turn's active execution; waiting for
  a human approval happens between turns and is not counted.
• Separate ifd-workflow-v050-trip-control evaluation suite (WF-029–033) over the production
  MCP tools with controlled providers.

Changed

• turn_status falls back to the persisted turn record when no in-process turn exists, and
  conversation_status reports approval_cancelled for a withdrawn approval;
  approve_dispatch refuses to approve a cancelled approval. Existing statuses are unchanged.
• Workflow verifier ifd-workflow-oracles-v4 adds MCP-output assertions and the cancelled
  outcome; v1–v3 manifests remain accepted.
• Dependency updates: pydantic 2.14.3, langsmith 0.14.17, langchain-openai 1.7.4,
  browserbase 1.24.0, playwright 1.65.0, boto3 1.43.127, hatchling 1.33.0 (#33); wrangler
  4.159.0 and jose 6.2.17 for the Worker (#32). Dependabot now proposes weekly updates (#16).