Update constructor calls (6-arg), seed AppSettings with sibling strategy, git-init working dirs via GitRepoFixture.InitRepoWithInitialCommit, and replace McpConfigPath assertions with worktree-path / .mcp.json checks. Also fixes PlanningHubTests which had the same 3-arg constructor. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>