chore: quantlab-agent 프로젝트 초기 설정

agent_guide 템플릿 기반으로 프로젝트 구조 설정.
Gitea(quantlab-agent), Vikunja(project #15) 연동 완료.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.planning/codebase/TESTING.md

@@ -0,0 +1,12 @@
+# Codebase Testing (`TESTING.md`)
+
+## Structural Verification
+Given that this is an AI Framework Infrastructure project (Bootstrap Kit), formal unit testing via Jest/Vitest does not primarily apply to the root structure.
+
+## GSD Audit Testing
+Testing is defined strictly through the **Plan-Execute-Verify** cycle of the Get-Shit-Done (GSD) framework:
+- **`[Acceptance Criteria]`**: Each phase and subtask has shell commands evaluated by `grep` or file existence checks ensuring conditions are logically provable (e.g. `grep "npx get-shit-done-cc" .agent/scripts/sync_vendors.bat`).
+- **Verifiers**: The `.planning/phases/*-VERIFICATION.md` pattern uses dedicated checker agents to automatically validate system goals against the physical outcome on disk.
+
+## Continuous Integration
+At the moment, no GitHub Actions or standard CI test runners execute automated validation, as validation strictly hinges on local agent validation (`/gsd-verify-work` or `gsd-plan-checker` routines).