fix(ios): report async pool exhaustion as busy

packages/zig/src/bridge_mobile_contacts.zigmodified+2-5

Changes to packages/zig/src/bridge_mobile_contacts.zig

		⋯342 linesShow the 342 lines above this hunk@@ -343,16 +343,13 @@ pub const ContactsBridge = struct {
343	343	}
344	344	};
345	345
346		-/// The answer for a full block pool, copied from `bridge_mobile_location` and
347		-/// the picker: `BridgeError` has no "Busy", `INVALID_PARAMETER` is the
348		-/// migration notes' designated stand-in, and the point is that the caller gets
349		-/// an explicit rejection instead of a promise that never settles.
	346	+/// Reject a call when every asynchronous reply slot is already in use.
350	347	fn poolFull(action: []const u8) bridge_error.BridgeError {
351	348	std.log.warn(
352	349	"{s} refused: all {d} async slots are in flight",
353	350	.{ action, ios_async.max_in_flight },
354	351	);
355		- return bridge_error.BridgeError.InvalidParameter;
	352	+ return bridge_error.BridgeError.Busy;
356	353	}
357	354
358	355	// =============================================================================