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-ship/SKILL.md

@@ -0,0 +1,16 @@
+---
+name: gsd-ship
+description: Create PR, run review, and prepare for merge after verification passes
+---
+
+<objective>
+Bridge local completion → merged PR. After /gsd-verify-work passes, ship the work: push branch, create PR with auto-generated body, optionally trigger review, and track the merge.
+
+Closes the plan → execute → verify → ship loop.
+</objective>
+
+<execution_context>
+@.agent/get-shit-done/workflows/ship.md
+</execution_context>
+
+Execute the ship workflow from @.agent/get-shit-done/workflows/ship.md end-to-end.