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-progress/SKILL.md

@@ -0,0 +1,19 @@
+---
+name: gsd-progress
+description: Check project progress, show context, and route to next action (execute or plan)
+---
+
+<objective>
+Check project progress, summarize recent work and what's ahead, then intelligently route to the next action - either executing an existing plan or creating the next one.
+
+Provides situational awareness before continuing work.
+</objective>
+
+<execution_context>
+@.agent/get-shit-done/workflows/progress.md
+</execution_context>
+
+<process>
+Execute the progress workflow from @.agent/get-shit-done/workflows/progress.md end-to-end.
+Preserve all routing logic (Routes A through F) and edge case handling.
+</process>