v0.168.0

What's Changed

• fix(snapshot): export and import agents in the provider-registry shape (#3128) by @mabry1985 in #3521
• test(snapshot): drop the dead _AUX global from the routing regressions by @mabry1985 in #3524
• fix(model-window): authenticate the window lookup with the env gateway key too (#3502) by @mabry1985 in #3525
• fix(llm): size the output budget to fit the context window (#3502) by @mabry1985 in #3526
• fix(a2a): hand the task back at once so the no-progress bound covers protoAgent peers (#3360) by @mabry1985 in #3529
• feat(room): collect a timed-out member's late answer instead of losing it (#3360b) by @mabry1985 in #3530
• fix(chat): drop the sent time from user messages; it lives only in the answer's footer by @mabry1985 in #3531
• feat(review): give review-finder lanes 60 tool rounds, up from 40 by @mabry1985 in #3532
• chore(deps): bump the ai-stack group with 4 updates by @dependabot[bot] in #3527

Full Changelog: v0.167.0...v0.168.0