* feat(sdk): add typed query foundation and gsd-sdk query (Phase 1)
Add sdk/src/query registry and handlers with tests, GSDQueryError, CLI query wiring, and supporting type/tool-scoping hooks. Update CHANGELOG. Vitest 4 constructor mock fixes in milestone-runner tests.
Made-with: Cursor
* fix(2137): skip worktree isolation when .gitmodules detected
When a project contains git submodules, worktree isolation cannot
correctly handle submodule commits — three separate gaps exist in
worktree setup, executor commit protocol, and merge-back. Rather
than patch each gap individually, detect .gitmodules at phase start
and fall back to sequential execution, which handles submodules
transparently (Option B).
Affected workflows: execute-phase.md, quick.md
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Co-authored-by: David Sienkowski <dave@sienkowski.com>