feat: 添加SysConfigHandler系统配置API

novalon-manage-api/manage-sys/src/main/java/cn/novalon/manage/sys/handler/config/SysConfigHandler.java

@@ -0,0 +1,64 @@
+package cn.novalon.manage.sys.handler.config;
+
+import cn.novalon.manage.sys.core.domain.SysConfig;
+import cn.novalon.manage.sys.core.service.ISysConfigService;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+
+@RestController
+@RequestMapping("/api/config")
+public class SysConfigHandler {
+
+    private final ISysConfigService configService;
+
+    public SysConfigHandler(ISysConfigService configService) {
+        this.configService = configService;
+    }
+
+    @GetMapping
+    public Flux<SysConfig> getAllConfigs() {
+        return configService.findAll();
+    }
+
+    @GetMapping("/{id}")
+    public Mono<ResponseEntity<SysConfig>> getConfigById(@PathVariable Long id) {
+        return configService.findById(id)
+                .map(ResponseEntity::ok)
+                .defaultIfEmpty(ResponseEntity.notFound().build());
+    }
+
+    @GetMapping("/key/{configKey}")
+    public Mono<ResponseEntity<SysConfig>> getConfigByKey(@PathVariable String configKey) {
+        return configService.findByConfigKey(configKey)
+                .map(ResponseEntity::ok)
+                .defaultIfEmpty(ResponseEntity.notFound().build());
+    }
+
+    @PostMapping
+    public Mono<ResponseEntity<SysConfig>> createConfig(@RequestBody SysConfig config) {
+        return configService.save(config)
+                .map(c -> ResponseEntity.status(HttpStatus.CREATED).body(c));
+    }
+
+    @PutMapping("/{id}")
+    public Mono<ResponseEntity<SysConfig>> updateConfig(@PathVariable Long id, @RequestBody SysConfig config) {
+        return configService.findById(id)
+                .flatMap(existing -> {
+                    existing.setConfigName(config.getConfigName());
+                    existing.setConfigValue(config.getConfigValue());
+                    existing.setConfigType(config.getConfigType());
+                    return configService.save(existing);
+                })
+                .map(ResponseEntity::ok)
+                .defaultIfEmpty(ResponseEntity.notFound().build());
+    }
+
+    @DeleteMapping("/{id}")
+    public Mono<ResponseEntity<Void>> deleteConfig(@PathVariable Long id) {
+        return configService.deleteById(id)
+                .then(Mono.just(ResponseEntity.noContent().build()));
+    }
+}