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>

.agent/skills/gsd-audit-uat/SKILL.md

@@ -0,0 +1,20 @@
+---
+name: gsd-audit-uat
+description: Cross-phase audit of all outstanding UAT and verification items
+---
+
+<objective>
+Scan all phases for pending, skipped, blocked, and human_needed UAT items. Cross-reference against codebase to detect stale documentation. Produce prioritized human test plan.
+</objective>
+
+<execution_context>
+@.agent/get-shit-done/workflows/audit-uat.md
+</execution_context>
+
+<context>
+Core planning files are loaded in-workflow via CLI.
+
+**Scope:**
+Glob: .planning/phases/*/*-UAT.md
+Glob: .planning/phases/*/*-VERIFICATION.md
+</context>