Phase 1 MVP: gateway, CRUD handlers, frontend components

Backend:
- WebSocket gateway (hub, client, events) with fanout broadcast
- Server CRUD handlers (create, list, get, update, delete)
- Channel CRUD handlers (create, list, get, update, delete)
- Message CRUD handlers (list with cursor pagination, create, update, delete)
- cmd/migrate standalone migration CLI (up/down)
- cmd/server wired to all handlers + WebSocket + static file serving

Frontend:
- Zustand stores: auth, server, channel, message, websocket
- API client with fetch wrapper
- Terminal-styled components: Layout, LoginForm, ChatArea, ChannelList, ServerBar, MemberList
- React Router with login and main routes
- Gruvbox dark palette throughout

Ops:
- Docker Compose with app service (multi-stage build)
- Caddyfile with WebSocket upgrade support
- Makefile for common tasks

Makefile

@@ -0,0 +1,42 @@
+.PHONY: build build-web build-server run dev docker-up docker-down clean
+
+# Build everything
+build: build-web build-server
+
+# Build the Go server
+build-server:
+	CGO_ENABLED=0 go build -o dumpster-server ./cmd/server
+
+# Build the web frontend
+build-web:
+	cd web && npm run build
+
+# Run the server locally (dev mode)
+run: build-server
+	./dumpster-server
+
+# Run web dev server (in a separate terminal)
+dev-web:
+	cd web && npm run dev
+
+# Start all backing services (no app, run that locally)
+docker-dev:
+	docker compose -f docker/compose.yml up postgres valkey minio livekit coturn -d
+
+# Start everything in Docker
+docker-up:
+	docker compose -f docker/compose.yml up -d --build
+
+# Stop everything
+docker-down:
+	docker compose -f docker/compose.yml down
+
+# Stop and remove volumes
+docker-clean:
+	docker compose -f docker/compose.yml down -v
+
+# Clean build artifacts
+clean:
+	rm -f dumpster-server
+	rm -rf web/dist
+	rm -rf web/node_modules