chore: air hot-reload + configurable backend port for dev proxy

.air.toml

@@ -0,0 +1,20 @@
+root = "."
+tmp_dir = "tmp"
+
+[build]
+# отдельный бинарь, чтобы не путать с make server (bin/hub-api)
+cmd = "go build -o ./bin/hub-api-dev ./server"
+bin = "./bin/hub-api-dev"
+include_ext = ["go"]
+exclude_dir = ["web", "dist", "gen", "bin", "tmp", "proto", "docs"]
+# порт берётся из env PORT самим сервером: PORT=8081 air
+delay = 500
+stop_on_error = true
+send_interrupt = true
+kill_delay = "2s"
+
+[log]
+time = true
+
+[misc]
+clean_on_exit = true

.gitignore

@@ -2,3 +2,5 @@ bin/
 dist/
 node_modules/
 .DS_Store
+tmp/
+air.log

Makefile

@@ -1,4 +1,6 @@
-.PHONY: proto web server release dev test
+PORT ?= 8080  # порт бэка; в dev еще прокидывается в vite-прокси (BACKEND_PORT)
+
+.PHONY: proto web server release dev dev-srv dev-web watch test
 
 proto:  ## Regenerate Go + TS code from proto
 	PATH="$(shell go env GOPATH)/bin:$$PATH" protoc \
@@ -18,14 +20,17 @@ server:  ## Build Go binary → bin/hub-api
 release:  ## CI build: static binary for the box (run on the box itself, native arch)
 	CGO_ENABLED=0 go build -o bin/hub-api ./server
 
-dev:  ## Dev: Go server + Vite on :5173 (use http://localhost:5173)
-	go run ./server & cd web && pnpm dev
+dev:  ## Dev: Go server + Vite on :5173 (use http://localhost:5173); PORT=8081 make dev для второй копии
+	PORT=$(PORT) go run ./server & cd web && BACKEND_PORT=$(PORT) pnpm dev
 
 dev-srv:
-	go run ./server
+	PORT=$(PORT) go run ./server
 
 dev-web:
-	cd web && pnpm dev
+	cd web && BACKEND_PORT=$(PORT) pnpm dev
+
+watch:  ## Hot-reload сервера (air); порт как у dev: PORT=8081 make watch
+	PORT=$(PORT) air
 
 test:  ## Smoke-test the RPC endpoints
 	@go build -o bin/hub-api ./server

web/vite.config.ts

@@ -2,12 +2,16 @@ import { defineConfig } from "vite";
 import preact from "@preact/preset-vite";
 import tailwindcss from "@tailwindcss/vite";
 
+// Бэк для дев-прокси выбирается портом, не правкой кода:
+// BACKEND_PORT=8081 pnpm dev -> прокси на вторую (рабочую/дев) копию.
+const apiTarget = `http://localhost:${process.env.BACKEND_PORT ?? 8080}`;
+
 export default defineConfig({
   plugins: [preact(), tailwindcss()],
   server: {
     proxy: {
       // Connect RPC calls in dev go straight to the Go server.
-      "/homelab.v1.HomelabService": "http://localhost:8080",
+      "/homelab.v1.HomelabService": apiTarget,
     },
   },
 });