feat: Show unregistered tools and add UI filtering

axhub-gateway/src/main/java/io/shinhanlife/axhub/biz/mcp/gateway/dto/ToolMetadata.java

@@ -55,7 +55,11 @@ public class ToolMetadata {
     private String podUrl;
 
     // 2-4. 가시성 여부
-    private boolean visible;
+    private boolean visible = true;
+
+    // 2-5. Redis 등록 여부 (UI 표출용)
+    @Builder.Default
+    private boolean isRegistered = true;
 
     // 3. 연동 아키텍처 구분 (DIRECT / MCI_EAI)
     private String integrationType;   // 연동 타입: "DIRECT" 또는 "MCI_EAI"

axhub-gateway/src/main/java/io/shinhanlife/axhub/biz/mcp/gateway/presentation/McpRouterController.java

@@ -6,9 +6,13 @@ import io.shinhanlife.axhub.biz.mcp.adapter.dto.JsonRpcResponse;
 import io.shinhanlife.axhub.biz.mcp.adapter.dto.Params;
 import io.shinhanlife.axhub.biz.mcp.gateway.dto.ToolMetadata;
 import io.shinhanlife.axhub.biz.mcp.gateway.service.ExecuteService;
+import io.shinhanlife.axhub.biz.mcp.gateway.config.GatewayFallbackProperties;
 import io.shinhanlife.axhub.biz.mcp.gateway.registry.RedisRegistryService;
 import io.shinhanlife.axhub.common.mcp.security.SecurityProperties;
 
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.web.client.RestClient;
+
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
@@ -43,15 +47,20 @@ public class McpRouterController {
     private final ExecuteService executeService;
     private final SecurityProperties securityProperties;
     private final ObjectMapper objectMapper;
+    private final GatewayFallbackProperties gatewayFallbackProperties;
+    private final RestClient restClient;
 
     public McpRouterController(RedisRegistryService redisRegistryService,
                                ExecuteService executeService,
                                SecurityProperties securityProperties,
-                               ObjectMapper objectMapper) {
+                               ObjectMapper objectMapper,
+                               GatewayFallbackProperties gatewayFallbackProperties) {
         this.redisRegistryService = redisRegistryService;
         this.executeService = executeService;
         this.securityProperties = securityProperties;
         this.objectMapper = objectMapper;
+        this.gatewayFallbackProperties = gatewayFallbackProperties;
+        this.restClient = RestClient.create();
     }
 
     @Operation(summary = "MCP 파이프라인 호출", description = "MCP 표준 파이프라인(ExecuteService)을 통해 레거시 툴을 호출합니다.")
@@ -102,6 +111,35 @@ public class McpRouterController {
                 .stream()
                 .filter(ToolMetadata::isVisible)
                 .collect(java.util.stream.Collectors.toList());
+                
+        java.util.Set<String> knownTools = activeTools.stream()
+                .map(ToolMetadata::getToolName)
+                .collect(java.util.stream.Collectors.toSet());
+
+        java.util.Set<String> fallbackUrls = new java.util.HashSet<>(gatewayFallbackProperties.getRoutes().values());
+        if (gatewayFallbackProperties.getDefaultUrl() != null) {
+            fallbackUrls.add(gatewayFallbackProperties.getDefaultUrl());
+        }
+
+        for (String url : fallbackUrls) {
+            try {
+                List<ToolMetadata> localTools = restClient.get()
+                        .uri(url + "/mcp/api/v1/tools/local")
+                        .retrieve()
+                        .body(new ParameterizedTypeReference<List<ToolMetadata>>() {});
+                        
+                if (localTools != null) {
+                    for (ToolMetadata t : localTools) {
+                        if (!t.isRegistered() && t.isVisible() && !knownTools.contains(t.getToolName())) {
+                            activeTools.add(t);
+                            knownTools.add(t.getToolName());
+                        }
+                    }
+                }
+            } catch (Exception e) {
+                log.warn("Failed to fetch local tools from fallback URL: {}", url);
+            }
+        }
         
         JsonRpcResponse response = new JsonRpcResponse();
         response.setId(UUID.randomUUID().toString());

axhub-gateway/src/main/resources/static/admin/scaffold.html

@@ -326,11 +326,17 @@
                 <!-- Tool List Form -->
                 <div class="tab-pane fade" id="list" role="tabpanel">
                     <div class="d-flex justify-content-between align-items-center mb-3">
-                        <h5 class="mb-0 text-secondary">현재 시스템에 등록되어 라우팅 가능한 Tool 목록입니다.</h5>
-                        <button class="btn btn-sm btn-outline-primary" onclick="loadToolList()">🔄 새로고침</button>
+                        <div>
+                            <h5 class="mb-1 text-secondary">현재 시스템에 라우팅 가능한 Tool 목록입니다.</h5>
+                            <small class="text-muted">Redis에 등록되지 않은(비공개) Tool도 포함되어 조회됩니다.</small>
+                        </div>
+                        <div class="d-flex gap-2">
+                            <input type="text" id="toolFilter" class="form-control form-control-sm" placeholder="🔍 이름 또는 그룹 검색..." onkeyup="filterTools()">
+                            <button class="btn btn-sm btn-outline-primary text-nowrap" onclick="loadToolList()">🔄 새로고침</button>
+                        </div>
                     </div>
                     <div class="table-responsive">
-                        <table class="table table-hover align-middle">
+                        <table class="table table-hover align-middle" id="toolTable">
                             <thead class="table-light">
                                 <tr>
                                     <th style="width: 10%; min-width: 100px;">그룹</th>
@@ -422,20 +428,43 @@
                 return;
             }
             
-            tbody.innerHTML = tools.map(t => `
-                <tr>
-                    <td class="text-nowrap"><span class="badge bg-secondary">${t.domainGroup || 'UNKNOWN'}</span></td>
-                    <td class="fw-bold text-primary text-break">${t.toolName}</td>
+            tbody.innerHTML = tools.map(t => {
+                const isReg = t.registered !== false; // default true
+                const badgeHtml = isReg ? '' : ' <span class="badge bg-warning text-dark border border-warning" title="Redis 미등록 (직접 호출만 가능)">비공개 (미등록)</span>';
+                
+                return `
+                <tr class="tool-row">
+                    <td class="text-nowrap"><span class="badge bg-secondary tool-group">${t.domainGroup || 'UNKNOWN'}</span></td>
+                    <td class="fw-bold text-primary text-break tool-name">${t.toolName}${badgeHtml}</td>
                     <td class="text-break">${t.description}</td>
                     <td class="text-nowrap"><span class="badge bg-light text-dark border">${t.podUrl}</span></td>
                     <td class="text-nowrap"><span class="badge bg-info text-dark">${t.integrationType}</span> <small class="text-muted ms-1">${t.mciServiceId || '-'}</small></td>
                 </tr>
-            `).join('');
+            `}).join('');
+            
+            // Re-apply filter if text is already present
+            filterTools();
         })
         .catch(err => {
             tbody.innerHTML = `<tr><td colspan="5" class="text-center py-4 text-danger">목록을 불러오는 중 오류가 발생했습니다: ${err.message}</td></tr>`;
         });
     }
+
+    function filterTools() {
+        const input = document.getElementById('toolFilter').value.toLowerCase();
+        const rows = document.querySelectorAll('.tool-row');
+        
+        rows.forEach(row => {
+            const name = row.querySelector('.tool-name').textContent.toLowerCase();
+            const group = row.querySelector('.tool-group').textContent.toLowerCase();
+            
+            if (name.includes(input) || group.includes(input)) {
+                row.style.display = '';
+            } else {
+                row.style.display = 'none';
+            }
+        });
+    }
 </script>
 
 </body>