Rebuild the hub on Bun: Elysia API, Better Auth, Drizzle, Next.js website

The hub becomes a Bun monorepo: apps/api (Elysia, Better Auth for accounts, roles, bans, proxy device
sign-in and JWT keys; tagline linking, presence and the console as before), packages/db (Drizzle; Postgres in
production, PGlite in development and tests), and the Next.js website from apps/web. Self-hostable with
docker compose; the website deploys to Vercel-style hosts, the API to any that runs Bun or containers. The
first version, in Go, is removed.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

.gitea/workflows/ci.yml

@@ -1,4 +1,4 @@
-# Tests the hub (against a real Postgres, a service container here) and builds it.
+# Type-checks, tests (the API against PGlite, an in-process Postgres) and builds the hub.
 name: CI
 
 on:
@@ -10,30 +10,25 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
-    env:
-      GOPRIVATE: git.t5de.dev
-      # Jobs run as root, which embedded Postgres refuses: the tests use this service instead.
-      T5DE_TEST_DB: postgres://postgres:postgres@postgres:5432/postgres?sslmode=disable
-    services:
-      postgres:
-        image: postgres:17
-        env:
-          POSTGRES_PASSWORD: postgres
-        options: >-
-          --health-cmd "pg_isready -U postgres" --health-interval 2s --health-timeout 5s --health-retries 30
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-go@v5
+      - uses: oven-sh/setup-bun@v2
         with:
-          go-version-file: go.mod
+          bun-version: 1.4.4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 26
+
+      - name: Install
+        run: bun install --frozen-lockfile
+
+      - name: Check types
+        run: bun run check-types
 
       - name: Test
-        run: |
-          unformatted=$(gofmt -l .)
-          if [ -n "$unformatted" ]; then echo "Not gofmt-formatted: $unformatted"; exit 1; fi
-          go vet ./...
-          go test ./...
+        run: bun run test
 
       - name: Build
-        run: CGO_ENABLED=0 go build -trimpath -o dist/t5de-hub ./cmd/t5de-hub
+        run: bun run build