Function wholeSignHouses

wholeSignHouses(ascendant: number): HouseCusps
Calculate Whole Sign house cusps

House 1 starts at 0° of the sign containing the Ascendant. Each subsequent house is the next sign (30° increments).

Example: If Ascendant is at 15° Aries:
- House 1: 0° Aries - 30° Aries
- House 2: 0° Taurus - 30° Taurus
- House 3: 0° Gemini - 30° Gemini ... etc
Parameters
- ascendant: number
  Ascendant position in degrees (0-360)
Returns HouseCusps
House cusps (1-12)
Example
```
// Ascendant at 15.5° (15°30' Aries)
const cusps = wholeSignHouses(15.5);
console.log(cusps.cusps[0]);  // 0 (House 1 = 0° Aries)
console.log(cusps.cusps[1]);  // 30 (House 2 = 0° Taurus)
console.log(cusps.cusps[11]); // 330 (House 12 = 0° Pisces)
```
Example
```
// Ascendant at 195° (15° Libra)
const cusps = wholeSignHouses(195);
console.log(cusps.cusps[0]);  // 180 (House 1 = 0° Libra)
```
- Defined in houses/house-systems/whole-sign.ts:49