initial commit: Artifacto v0.1

Self-hosted HTML artifact publisher. Single Go binary, SQLite metadata,
HTML on disk. Features: password-protected artifacts, per-artifact expiration,
admin dashboard with view metrics (privacy-preserving daily-salt visitor hash,
sparklines, 30-day SVG chart, top referrers), rate-limited unlock endpoint.

Packaged as a Docker image (two-stage, CGO_ENABLED=0, pure-Go SQLite).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,16 @@
+name: artifacto
+services:
+  artifacto:
+    build: .
+    image: artifacto:latest
+    container_name: artifacto
+    restart: unless-stopped
+    environment:
+      ADMIN_PASSWORD: ${ADMIN_PASSWORD:?set in .env}
+      SESSION_SECRET: ${SESSION_SECRET:?set in .env}
+      BASE_URL: ${BASE_URL:-https://artifacto.hubris.network}
+      MAX_UPLOAD_MB: ${MAX_UPLOAD_MB:-5}
+    volumes:
+      - ./data:/data
+    ports:
+      - "127.0.0.1:3100:3000"