✨ feat(saved-query): 支持已存查询后端持久化与连接重绑

- 后端新增 saved_queries.json 仓库，保存、导入、删除和重绑统一走 Wails 方法
- 启动时导入旧 lite-db-storage 中的 savedQueries 和连接快照，成功后清理旧字段
- 新增连接指纹匹配，唯一强匹配自动重绑，歧义场景保留为未匹配
- 侧边栏新增未匹配已存查询分组，并支持手动绑定到目标连接
- 前端保存、重命名、删除查询改为后端持久化，并补充浏览器 mock
- 补充后端与前端迁移回归测试

frontend/wailsjs/go/app/App.d.ts

@@ -76,6 +76,8 @@ export function DataSyncPreview(arg1:sync.SyncConfig,arg2:string,arg3:number):Pr
 
 export function DeleteConnection(arg1:string):Promise<void>;
 
+export function DeleteQuery(arg1:string):Promise<void>;
+
 export function DeleteSQLDirectory(arg1:string):Promise<connection.QueryResult>;
 
 export function DeleteSQLFile(arg1:string):Promise<connection.QueryResult>;
@@ -136,8 +138,12 @@ export function GetGlobalProxyConfig():Promise<connection.QueryResult>;
 
 export function GetSavedConnections():Promise<Array<connection.SavedConnectionView>>;
 
+export function GetSavedQueries():Promise<Array<connection.SavedQuery>>;
+
 export function GetSecurityUpdateStatus():Promise<app.SecurityUpdateStatus>;
 
+export function GetUnboundSavedQueries():Promise<Array<connection.SavedQuery>>;
+
 export function ImportConfigFile():Promise<connection.QueryResult>;
 
 export function ImportConnectionsPayload(arg1:string,arg2:string):Promise<Array<connection.SavedConnectionView>>;
@@ -150,6 +156,8 @@ export function ImportLegacyConnections(arg1:Array<connection.SavedConnectionInp
 
 export function ImportLegacyGlobalProxy(arg1:connection.SaveGlobalProxyInput):Promise<connection.GlobalProxyView>;
 
+export function ImportSavedQueries(arg1:connection.SavedQueryImportPayload):Promise<Array<connection.SavedQuery>>;
+
 export function InstallLocalDriverPackage(arg1:string,arg2:string,arg3:string,arg4:string):Promise<connection.QueryResult>;
 
 export function InstallUpdateAndRestart():Promise<connection.QueryResult>;
@@ -216,6 +224,8 @@ export function ReadAppLogTail(arg1:number,arg2:string):Promise<connection.Query
 
 export function ReadSQLFile(arg1:string):Promise<connection.QueryResult>;
 
+export function RebindSavedQuery(arg1:string,arg2:string):Promise<connection.SavedQuery>;
+
 export function RedisConnect(arg1:connection.ConnectionConfig):Promise<connection.QueryResult>;
 
 export function RedisDeleteHashField(arg1:connection.ConnectionConfig,arg2:string,arg3:any):Promise<connection.QueryResult>;
@@ -294,6 +304,8 @@ export function SaveConnection(arg1:connection.SavedConnectionInput):Promise<con
 
 export function SaveGlobalProxy(arg1:connection.SaveGlobalProxyInput):Promise<connection.GlobalProxyView>;
 
+export function SaveQuery(arg1:connection.SavedQuery):Promise<connection.SavedQuery>;
+
 export function SelectCertificateFile(arg1:string,arg2:string):Promise<connection.QueryResult>;
 
 export function SelectDataRootDirectory(arg1:string):Promise<connection.QueryResult>;

frontend/wailsjs/go/app/App.js

@@ -142,6 +142,10 @@ export function DeleteConnection(arg1) {
   return window['go']['app']['App']['DeleteConnection'](arg1);
 }
 
+export function DeleteQuery(arg1) {
+  return window['go']['app']['App']['DeleteQuery'](arg1);
+}
+
 export function DeleteSQLDirectory(arg1) {
   return window['go']['app']['App']['DeleteSQLDirectory'](arg1);
 }
@@ -262,10 +266,18 @@ export function GetSavedConnections() {
   return window['go']['app']['App']['GetSavedConnections']();
 }
 
+export function GetSavedQueries() {
+  return window['go']['app']['App']['GetSavedQueries']();
+}
+
 export function GetSecurityUpdateStatus() {
   return window['go']['app']['App']['GetSecurityUpdateStatus']();
 }
 
+export function GetUnboundSavedQueries() {
+  return window['go']['app']['App']['GetUnboundSavedQueries']();
+}
+
 export function ImportConfigFile() {
   return window['go']['app']['App']['ImportConfigFile']();
 }
@@ -290,6 +302,10 @@ export function ImportLegacyGlobalProxy(arg1) {
   return window['go']['app']['App']['ImportLegacyGlobalProxy'](arg1);
 }
 
+export function ImportSavedQueries(arg1) {
+  return window['go']['app']['App']['ImportSavedQueries'](arg1);
+}
+
 export function InstallLocalDriverPackage(arg1, arg2, arg3, arg4) {
   return window['go']['app']['App']['InstallLocalDriverPackage'](arg1, arg2, arg3, arg4);
 }
@@ -422,6 +438,10 @@ export function ReadSQLFile(arg1) {
   return window['go']['app']['App']['ReadSQLFile'](arg1);
 }
 
+export function RebindSavedQuery(arg1, arg2) {
+  return window['go']['app']['App']['RebindSavedQuery'](arg1, arg2);
+}
+
 export function RedisConnect(arg1) {
   return window['go']['app']['App']['RedisConnect'](arg1);
 }
@@ -578,6 +598,10 @@ export function SaveGlobalProxy(arg1) {
   return window['go']['app']['App']['SaveGlobalProxy'](arg1);
 }
 
+export function SaveQuery(arg1) {
+  return window['go']['app']['App']['SaveQuery'](arg1);
+}
+
 export function SelectCertificateFile(arg1, arg2) {
   return window['go']['app']['App']['SelectCertificateFile'](arg1, arg2);
 }

frontend/wailsjs/go/models.ts

@@ -1199,6 +1199,68 @@ export namespace connection {
 		    return a;
 		}
 	}
+	export class SavedQuery {
+	    id: string;
+	    name: string;
+	    sql: string;
+	    connectionId: string;
+	    dbName: string;
+	    createdAt: number;
+	    connectionFingerprint?: string;
+	    fingerprintVersion?: string;
+	    bindingStatus?: string;
+	    originalConnectionId?: string;
+
+	    static createFrom(source: any = {}) {
+	        return new SavedQuery(source);
+	    }
+
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.id = source["id"];
+	        this.name = source["name"];
+	        this.sql = source["sql"];
+	        this.connectionId = source["connectionId"];
+	        this.dbName = source["dbName"];
+	        this.createdAt = source["createdAt"];
+	        this.connectionFingerprint = source["connectionFingerprint"];
+	        this.fingerprintVersion = source["fingerprintVersion"];
+	        this.bindingStatus = source["bindingStatus"];
+	        this.originalConnectionId = source["originalConnectionId"];
+	    }
+	}
+	export class SavedQueryImportPayload {
+	    queries: SavedQuery[];
+	    legacyConnections?: SavedConnectionInput[];
+
+	    static createFrom(source: any = {}) {
+	        return new SavedQueryImportPayload(source);
+	    }
+
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.queries = this.convertValues(source["queries"], SavedQuery);
+	        this.legacyConnections = this.convertValues(source["legacyConnections"], SavedConnectionInput);
+	    }
+
+		convertValues(a: any, classs: any, asMap: boolean = false): any {
+		    if (!a) {
+		        return a;
+		    }
+		    if (a.slice && a.map) {
+		        return (a as any[]).map(elem => this.convertValues(elem, classs));
+		    } else if ("object" === typeof a) {
+		        if (asMap) {
+		            for (const key of Object.keys(a)) {
+		                a[key] = new classs(a[key]);
+		            }
+		            return a;
+		        }
+		        return new classs(a);
+		    }
+		    return a;
+		}
+	}
 
 }
 
@@ -1392,4 +1454,3 @@ export namespace sync {
 	}
 
 }
-