docs(api): document POST /panel/api/inbounds/:id/delAllClients

Adds the OpenAPI entry for the new "delete all clients of an inbound"
endpoint and regenerates openapi.json (116 paths, 117 operations).

frontend/public/openapi.json

@@ -751,6 +751,53 @@
         }
       }
     },
+    "/panel/api/inbounds/{id}/delAllClients": {
+      "post": {
+        "tags": [
+          "Inbounds"
+        ],
+        "summary": "Remove every client attached to a single inbound while keeping the inbound itself. Collects emails from settings.clients[] and feeds them into the optimized bulk-delete path (runtime user removal + traffic-row cleanup + SyncInbound). Destructive and cannot be undone.",
+        "operationId": "post_panel_api_inbounds_id_delAllClients",
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "description": "Inbound ID.",
+            "schema": {
+              "type": "integer"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Successful response",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "object",
+                  "properties": {
+                    "success": {
+                      "type": "boolean"
+                    },
+                    "msg": {
+                      "type": "string"
+                    },
+                    "obj": {}
+                  }
+                },
+                "example": {
+                  "success": true,
+                  "obj": {
+                    "deleted": 12
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    },
     "/panel/api/inbounds/resetAllTraffics": {
       "post": {
         "tags": [

frontend/src/pages/api-docs/endpoints.ts

@@ -174,6 +174,15 @@ export const sections: readonly Section[] = [
           { name: 'id', in: 'path', type: 'number', desc: 'Inbound ID.' },
         ],
       },
+      {
+        method: 'POST',
+        path: '/panel/api/inbounds/:id/delAllClients',
+        summary: 'Remove every client attached to a single inbound while keeping the inbound itself. Collects emails from settings.clients[] and feeds them into the optimized bulk-delete path (runtime user removal + traffic-row cleanup + SyncInbound). Destructive and cannot be undone.',
+        params: [
+          { name: 'id', in: 'path', type: 'number', desc: 'Inbound ID.' },
+        ],
+        response: '{\n  "success": true,\n  "obj": {\n    "deleted": 12\n  }\n}',
+      },
       {
         method: 'POST',
         path: '/panel/api/inbounds/resetAllTraffics',