fix: bump goose backend to 51d9effe

[kalvinnchau]

Overview

Category: fix

User Impact: Astra chats can receive automatic titles instead of remaining named “New Chat”.

Problem: The currently pinned Goose backend sends unsupported reasoning.effort: "none" when generating Astra session titles.

Solution: Bump the Goose backend from 5e909259 to 51d9effeed24f1b319f520c3dae3ac626bd57170. This revision includes aaif-goose/goose#11976, which maps Astra reasoning-off requests to the supported low effort while preserving GPT-5.6 behavior.

Changes

File changes

goose-backend.lock.json
Update only the backend commit. Preserve the repository, ref, package, and binary settings used by development and bundled releases.

Verification

• Confirmed the target commit contains the merged Astra fix (618d41ee).
• At the exact target commit, cargo test --locked -p goose-provider-types --lib gpt6: 2 passed, 0 failed, covering effort mapping and Responses API serialization.
• git diff --check passed.
• At the exact target commit, cargo build --locked -p goose-cli --bin goose passed (debug build).
• Release/setup script tests: 92 passed initially; one 15-second timeout passed on targeted rerun (4.3 seconds).
• Full Tauri release build and live naming have not been verified.

No changes to composer dispatch or queue behavior governed by the chat laws.