feat: initial project structure

- CLAUDE.md project passport
- Agent system prompts (architect, developer, reviewer, tester, deployer)
- Gitea Actions CI pipeline (lint, test, build)
- Docker configuration (Dockerfile, docker-compose.yml)
- Canonical directory structure per BRD
- Makefile with dev/test/lint/build/deploy targets
- Architecture docs skeleton

Refs: multi-agent F0-3, F0-5, F0-6, F0-8

docker-compose.yml

@@ -0,0 +1,17 @@
+version: "3.8"
+services:
+  app:
+    build: .
+    ports:
+      - "5556:5556"
+    volumes:
+      - ./data:/app/data
+      - ./src/web:/app/src/web
+    environment:
+      - DATABASE_URL=sqlite:///./data/enduro.db
+      - TILES_DIR=/app/data/terrain
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:5556/health"]
+      interval: 30s
+      timeout: 5s
+      retries: 3