Function findNextIngress

findNextIngress(
    body: CelestialBody,
    houseCusps: number[],
    fromJD: number,
    maxSearchDays?: number,
): HouseIngress | null
Find when a body will next enter a different house.
Parameters
- body: CelestialBody
  Celestial body
- houseCusps: number[]
  Array of 12 house cusp longitudes
- fromJD: number
  Starting Julian Date
- maxSearchDays: number = 365
  Maximum days to search (default: 365)
Returns HouseIngress | null
HouseIngress with timing, or null if not found
Example
```
const nextIngress = findNextIngress(
  CelestialBody.Saturn,
  houseCusps,
  currentJD
);

if (nextIngress) {
  console.log(`Saturn enters house ${nextIngress.house} on ${nextIngress.ingressDate?.year}`);
}
```
- Defined in transits/house-ingress.ts:278