feat: scaffold v2 project structure with Docker, FastAPI, and config

동작하는 최소 코드 수준의 v2 스캐폴딩:

- docker-compose.yml: postgres, fastapi, kordoc, frontend, caddy
- app/: FastAPI 백엔드 (main, core, models, ai, prompts)
- services/kordoc/: Node.js 문서 파싱 마이크로서비스
- gpu-server/: AI Gateway + GPU docker-compose
- frontend/: SvelteKit 기본 구조
- migrations/: PostgreSQL 초기 스키마 (documents, tasks, processing_queue)
- tests/: pytest conftest 기본 설정
- config.yaml, Caddyfile, credentials.env.example 갱신

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

config.yaml

@@ -0,0 +1,48 @@
+# hyungi_Document_Server 설정
+
+ai:
+  gateway:
+    endpoint: "http://gpu-server:8080"
+
+  models:
+    primary:
+      endpoint: "http://host.docker.internal:8800/v1/chat/completions"
+      model: "mlx-community/Qwen3.5-35B-A3B-4bit"
+      max_tokens: 4096
+      timeout: 60
+
+    fallback:
+      endpoint: "http://gpu-server:11434/v1/chat/completions"
+      model: "qwen3.5:35b-a3b"
+      max_tokens: 4096
+      timeout: 120
+
+    premium:
+      endpoint: "https://api.anthropic.com/v1/messages"
+      model: "claude-sonnet-4-20250514"
+      max_tokens: 8192
+      daily_budget_usd: 5.00
+      require_explicit_trigger: true
+
+    embedding:
+      endpoint: "http://gpu-server:11434/api/embeddings"
+      model: "nomic-embed-text"
+
+    vision:
+      endpoint: "http://gpu-server:11434/api/generate"
+      model: "Qwen2.5-VL-7B"
+
+    rerank:
+      endpoint: "http://gpu-server:11434/api/rerank"
+      model: "bge-reranker-v2-m3"
+
+nas:
+  mount_path: "/documents"
+  pkm_root: "/documents/PKM"
+
+schedule:
+  law_monitor: "07:00"
+  mailplus_archive: ["07:00", "18:00"]
+  daily_digest: "20:00"
+  file_watcher_interval_minutes: 5
+  queue_consumer_interval_minutes: 10