docs: update production config references (HH-465) (#103)

Co-authored-by: Rogee <rogee@ipao.vip>

AGENTS.md

@@ -104,7 +104,7 @@ make docker
 
 ## Configuration
 
-- Config files: `backend/configs/config.yaml` (base) + `config.dev.yaml` / `config.prod.yaml` (env overlays).
+- Config files: `backend/configs/config.yaml` (base) + `config.dev.yaml` (development overlay) / `backend/configs/config.production.yaml` (production overlay).
 - Viper search paths: `./configs`, `./`, `/etc/gochat/`.
 - Runtime config dir is resolved from the base config's location, so env overlays load from the same dir automatically.
 - Secrets/`.env` are gitignored — never commit them.

docs/architecture/worker-redis-queue-migration.md

@@ -626,7 +626,7 @@ worker:
   redis_sweep_interval_s: 15  # 开发环境更短，便于测试延迟 job
 ```
 
-### 4.3 config.prod.yaml 变更
+### 4.3 backend/configs/config.production.yaml 变更
 
 ```yaml
 worker:
@@ -843,7 +843,7 @@ if cfg.Worker.RedisSweepIntervalS < 1 {
 | 2.4 | `internal/config/validator.go` | 新增字段校验 |
 | 2.5 | `internal/app/bootstrap.go` | 调整 rdb 创建顺序（移到 workerPool 之前），改用 `NewWorkerPoolWithOptions` |
 | 2.6 | `configs/config.dev.yaml` | 新增 worker Redis 配置 |
-| 2.7 | `configs/config.prod.yaml` | 新增 worker Redis 配置 |
+| 2.7 | `backend/configs/config.production.yaml` | 新增 worker Redis 配置 |
 
 ### Phase 3：测试
 
@@ -911,6 +911,6 @@ if cfg.Worker.RedisSweepIntervalS < 1 {
 | `internal/config/validator.go` | 校验 | 新字段校验 |
 | `internal/app/bootstrap.go` | 接入 | rdb 顺序调整、NewWorkerPoolWithOptions |
 | `configs/config.dev.yaml` | 配置 | worker Redis 参数 |
-| `configs/config.prod.yaml` | 配置 | worker Redis 参数 |
+| `backend/configs/config.production.yaml` | 配置 | worker Redis 参数 |
 | `deploy/docker/Dockerfile` | 注释更新 | gochat-worker 说明（Phase 4） |
 | `deploy/docker/docker-compose.prod.yml` | 部署 | worker service command（Phase 4） |