feat: agent distribution via AIOps backend + install script

- Serve agent binaries from /agent/aiops-agent-linux-{amd64,arm64}
- One-line install: curl -fsSL http://server:8080/agent/install.sh | bash
- Auto-detects arch (x86_64/aarch64), creates systemd service
- GET /agent/arch returns version + download URLs

Signed-off-by: Logan.Li

backend/internal/api/routes/routes.go

@@ -20,6 +20,22 @@ func Register(r *gin.Engine, db *gorm.DB, log *zap.Logger, cfg *config.Config) {
 		c.JSON(200, gin.H{"status": "ok"})
 	})
 
+	// Agent 二进制下载 + 一键安装脚本（无需鉴权，方便 curl|bash）
+	r.Static("/agent/bin", "./agent/bin")
+	r.StaticFile("/agent/install.sh", "./agent/deploy/install.sh")
+	r.StaticFile("/agent/aiops-agent-linux-amd64", "./agent/bin/aiops-agent-linux-amd64")
+	r.StaticFile("/agent/aiops-agent-linux-arm64", "./agent/bin/aiops-agent-linux-arm64")
+	r.GET("/agent/arch", func(c *gin.Context) {
+		c.JSON(200, gin.H{
+			"version": "1.0.0",
+			"downloads": gin.H{
+				"amd64": "/agent/aiops-agent-linux-amd64",
+				"arm64": "/agent/aiops-agent-linux-arm64",
+			},
+			"install": "curl -fsSL http://<server>:8080/agent/install.sh | bash -s -- --server http://<server>:8080 --token <token>",
+		})
+	})
+
 	// WebSocket终端 (token via query param)
 	webShellHandler := handlers.NewWebShellHandler(db)
 	r.GET("/ws/terminal", webShellHandler.Terminal)