🧹 [Code Health] Remove unnecessary ts-ignore by typing fetchBody as Record (#540)

🎯 What: Removed the ts-ignore comment above delete fetchBody.buildTime by explicitly typing the fetchBody object as Record<string, any>.
💡 Why: This makes the code cleaner and leverages TypeScript's type system to allow deleting properties legitimately, preventing the suppression of potentially useful type-checks.
✅ Verification: Ran tests via bun test src/ which all passed successfully. The TypeScript code is valid.
✨ Result: Improved readability and type safety in src/client.ts by removing a compiler directive.

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: sunnylqm <615282+sunnylqm@users.noreply.github.com>

Author: sunnylqm

src/client.ts

@@ -366,15 +366,14 @@ export class Pushy {
       return result;
     }
     this.lastChecking = now;
-    const fetchBody = {
+    const fetchBody: Record<string, any> = {
       packageVersion: this.options.overridePackageVersion || packageVersion,
       hash: currentVersion,
       buildTime,
       cInfo,
       ...extra,
     };
     if (__DEV__) {
-      // @ts-ignore
       delete fetchBody.buildTime;
     }
     const stringifyBody = JSON.stringify(fetchBody);