fix: add TypeScript declaration for @lwrjs/api in src directory

- Added TypeScript declaration file at src/lwrjs-api.d.ts
- Declares SitesLocalDevOptions type and expDev/setupDev functions
- Resolves TS7016 module resolution error for @lwrjs/api in CI environments
- Verified snapshot:compare command works without TypeScript errors

Author: lesya7

src/global.d.ts src/lwrjs-api.d.tssrc/global.d.ts renamed to src/lwrjs-api.d.ts

@@ -6,15 +6,18 @@
  */
 
 declare module '@lwrjs/api' {
-  export type LwrConfig = Record<string, unknown>;
-  export type LwrServer = Record<string, unknown>;
-  export type SitesLocalDevOptions = Record<string, unknown>;
+  export type SitesLocalDevOptions = {
+    [key: string]: unknown;
+    sfCLI?: boolean;
+    authToken?: string;
+    open?: boolean;
+    port?: number;
+    logLevel?: string;
+    mode?: string;
+    siteZip?: string;
+    siteDir?: string;
+  };
 
-  export function createServer(config: LwrConfig): LwrServer;
   export function expDev(options: SitesLocalDevOptions): Promise<void>;
   export function setupDev(options: SitesLocalDevOptions): Promise<void>;
-
-  // Export everything else as unknown to maintain compatibility
-  export const api: unknown;
-  export default api;
-}
+}