Initial project skeleton

Haskell backend: Orb HTTP framework, JSON-only API
Frontend: Mithril.js SPA with TypeScript, Neo Brutalism CSS
Dockerized build via flipstone/haskell-tools image

Routes:
  GET /api/health — health check

Build: ./hs stack build
Test:  ./hs stack test
Run:   ./scripts/run

docker-compose.yml

@@ -0,0 +1,9 @@
+services:
+  sis-server:
+    image: git.roo.lol/jbrechtel/sis:latest
+    restart: unless-stopped
+    ports:
+      - "127.0.0.1:8080:8080"
+    volumes:
+      # Writable app state (SQLite DB for tasks, users, completions).
+      - /srv/sis/data:/data