feat: phase 0 foundation — monorepo scaffold, backend, frontend, CI, docker

Establishes the skeleton every later phase builds on: Go+Gin API with
zap logging, /api/healthz, SQLite+goose runner; Vite+React18+TS strict+
Tailwind v4 frontend with bento-mono theme tokens; openapi.yaml driving
a generated TS client; oxlint with vendored anti-slop rules; GitHub CI;
multi-stage Dockerfile -> 33.6MB distroless image; docker compose up
serves the blank board.


Generated with [Devin](https://devin.ai)

Authored By: TDvorak <[email protected]>
Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

package.json

@@ -0,0 +1,21 @@
+{
+  "name": "dash",
+  "private": true,
+  "type": "module",
+  "workspaces": [
+    "apps/frontend",
+    "packages/api-client"
+  ],
+  "scripts": {
+    "generate": "npm run generate -w @dash/api-client",
+    "dev": "npm run dev -w @dash/frontend",
+    "build": "npm run build -w @dash/api-client --if-present && npm run build -w @dash/frontend",
+    "typecheck": "npm run typecheck -w @dash/frontend",
+    "lint": "oxlint",
+    "postinstall": "npm run generate"
+  },
+  "devDependencies": {
+    "@oxlint/plugins": "1.78.0",
+    "oxlint": "^1.78.0"
+  }
+}