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>

apps/frontend/vite.config.ts

@@ -0,0 +1,15 @@
+import path from "node:path";
+import react from "@vitejs/plugin-react";
+import tailwindcss from "@tailwindcss/vite";
+import { defineConfig } from "vite";
+
+export default defineConfig({
+	plugins: [react(), tailwindcss()],
+	resolve: {
+		alias: { "@": path.resolve(__dirname, "src") },
+	},
+	server: {
+		// Backend API during development (DASH_DEV=1 go run ./cmd/dash).
+		proxy: { "/api": "http://localhost:8080" },
+	},
+});