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/ARCHITECTURE.md

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+# Codebase Architecture (`ARCHITECTURE.md`)
+
+## Conceptual Core
+The project employs a **Master-Satellite Zero-Pollution Orchestration Model**.
+The architecture is designed to host local environments mapped centrally for LLM / Developer agents so that their capabilities and tracking modules do not leak into the developer's global OS environment.
+
+## Design Patterns & Layers
+1. **Master Repository Role (`new_gene`)**: Synchronizes third-party Submodules, flattens them via `.agent/scripts/extract_skills.js` and `.agent/scripts/sync_vendors.bat`, and seeds localized GSD skills via local bin instantiation.
+2. **Satellite Project Consumption**: Satellite repositories pull the tracked objects (like `.agent/get-shit-done/` binaries and `.agent/skills/gsd-*/` files), run `bootstrap.bat`, and safely isolate all code environments.
+
+## Execution Entry Points
+- Master Sync: `.agent/scripts/sync_vendors.bat/.sh` initializes NPM bounds, installs `uipro`/`get-shit-done-cc` strictly inside `.agent/env/node_modules/`, and runs them from the root via `.agent/env/node_modules/.bin/...` to safely isolate state.
+- Satellite Install: `bootstrap.bat/.sh` executes the runtime scripts sequentially (Git modules -> node env -> Python `.requirements` instantiation using a developer-provided `$AGENT_PYTHON_PATH`).
+
+## Data Flow
+The data flow travels exclusively via file IO (File reading -> Markdown modification) controlled by the Antigravity Agent framework executing `Task()` components or user IDE plugins. Git actions (add/commit/push) ensure cross-device immutability.