fix(backend): disable concurrent test execution to fix 386 mock race conditions

feat(dashboard): migrate 4 remaining pages to React Query

feat(dashboard): Sprint 6 — React Query migration for all 18 remaining pages

feat(backend): Sprint 5 — centralized secrets config + 201 integration tests

refactor(backend): Sprint 4 — extract shared middleware, break god objects

feat(dashboard): Sprint 3 — frontend security + performance

fix(quality): Sprint 2 — 174 new tests, console.error cleanup, scriptsmith refactor, Prisma indexes

fix(security): Sprint 1 security remediation — 9 vulnerabilities + 2 code quality items

docs(architecture): add Git & Approvals tab with workflow diagrams, state machine, and data models

docs: redesign index.html layout, bump font sizes across all playground pages

feat(git): add Git integration with version control, code review, and approval-merge workflow

feat(maestrosmith): add Maestro YAML flow generation for Flutter automation

feat: enhanced chat system, admin pages, and Maestro YAML support

feat(dashboard): add AI monitoring widgets for QP parity

feat(sprint-23-26): QP parity complete - Executions, Self-Healing, Suites, Requirements, Coverage, ScriptSmith, Recorder, Flaky Tests, Visual QA