docs(agent): 统一中文注释并补充部署文档

将代码与测试注释改为中文以符合仓库规范；新增中文部署指南、
示例配置，并完善构建脚本对 VERSION 注入的说明。

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/httpapi/server_test.go

@@ -10,7 +10,7 @@ import (
 	"mfd-monitor-agent/internal/status"
 )
 
-// TestStatusReturnsCachedSnapshot verifies /status reads the provider cache.
+// TestStatusReturnsCachedSnapshot 验证 /status 读取提供者缓存。
 func TestStatusReturnsCachedSnapshot(t *testing.T) {
 	provider := StaticProvider{Snapshot: status.HostStatus{
 		Agent: status.AgentInfo{Version: "test", SnapshotAt: time.Now(), SnapshotStatus: "ok"},
@@ -34,7 +34,7 @@ func TestStatusReturnsCachedSnapshot(t *testing.T) {
 	}
 }
 
-// TestHealthReportsSnapshotMetadata verifies /health returns snapshot metadata.
+// TestHealthReportsSnapshotMetadata 验证 /health 返回快照元数据。
 func TestHealthReportsSnapshotMetadata(t *testing.T) {
 	provider := StaticProvider{Snapshot: status.HostStatus{
 		Agent: status.AgentInfo{Version: "test", SnapshotAt: time.Unix(10, 0), SnapshotStatus: "partial"},
@@ -57,7 +57,7 @@ func TestHealthReportsSnapshotMetadata(t *testing.T) {
 	}
 }
 
-// TestStatusReturnsServiceUnavailableBeforeSnapshot verifies /status does not live collect.
+// TestStatusReturnsServiceUnavailableBeforeSnapshot 验证 /status 不会在请求时实时采集。
 func TestStatusReturnsServiceUnavailableBeforeSnapshot(t *testing.T) {
 	server := New(StaticProvider{OK: false})
 
@@ -70,7 +70,7 @@ func TestStatusReturnsServiceUnavailableBeforeSnapshot(t *testing.T) {
 	}
 }
 
-// TestHealthReturnsStartingBeforeSnapshot verifies /health exposes startup state.
+// TestHealthReturnsStartingBeforeSnapshot 验证 /health 在启动阶段暴露 starting 状态。
 func TestHealthReturnsStartingBeforeSnapshot(t *testing.T) {
 	server := New(StaticProvider{OK: false})
 
@@ -90,7 +90,7 @@ func TestHealthReturnsStartingBeforeSnapshot(t *testing.T) {
 	}
 }
 
-// TestStatusRejectsNonGET verifies /status only accepts GET requests.
+// TestStatusRejectsNonGET 验证 /status 仅接受 GET 请求。
 func TestStatusRejectsNonGET(t *testing.T) {
 	server := New(StaticProvider{OK: true})
 
@@ -103,7 +103,7 @@ func TestStatusRejectsNonGET(t *testing.T) {
 	}
 }
 
-// TestHealthRejectsNonGET verifies /health only accepts GET requests.
+// TestHealthRejectsNonGET 验证 /health 仅接受 GET 请求。
 func TestHealthRejectsNonGET(t *testing.T) {
 	server := New(StaticProvider{OK: true})