Function equalHouses

equalHouses(ascendant: number): HouseCusps
Calculate Equal house cusps

Each house is exactly 30° from the previous, starting from the Ascendant. House 1 cusp = Ascendant House 2 cusp = Ascendant + 30° House 3 cusp = Ascendant + 60° ... and so on
Parameters
- ascendant: number
  Ascendant position in degrees (0-360)
Returns HouseCusps
House cusps (1-12)
Example
```
// Ascendant at 15° (15° Aries)
const cusps = equalHouses(15);
console.log(cusps.cusps[0]);  // 15 (House 1)
console.log(cusps.cusps[1]);  // 45 (House 2)
console.log(cusps.cusps[6]);  // 195 (House 7 = DSC)
```
- Defined in houses/house-systems/equal.ts:37