fix(browser): gettabbyid returns undefined when tab not found despite non-nullable return type

[kumburovicbranko682-boop]

Description

Array.prototype.find() returns undefined when no element matches, but the function declares its return type as Promise<TargetInfo> (non-nullable). The as TargetInfo cast silences the compiler but doesn't prevent undefined at runtime. Any caller accessing properties on the result (e.g., tab.url, tab.webSocketDebuggerUrl) will get a TypeError: "Cannot read properties of undefined". This is especially likely during race conditions where a tab closes between getTabs and the caller using the result.

Severity: high
File: src/browser/provider/built-in/dedicated/chrome/cdp-client/utils.ts

Expected Behavior

The code should handle this case properly to avoid unexpected errors or degraded quality.

[github-actions]

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[github-actions]

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