Bhava chakra & special lagnas

GET /v1/vedic/charts/{id}/bhava-chakra?style=raman|equal

Returns 12 bhava cusps with their midpoints (madhya), start, and end boundaries.

• Raman style anchors each madhya on the Placidus cusp; start/end are the midpoints between adjacent madhyas (preserves Placidus distortion).
• Equal style uses 30° per bhava from the ascendant.

Default style is raman.

{
  "chart_id": "01HKD…",
  "style": "raman",
  "cusps": [
    {"bhava": 1, "madhya": 145.3, "start": 130.2, "end": 175.8},
    {"bhava": 2, "madhya": 175.8, "start": 175.8, "end": 205.4},
    "…12 entries"
  ]
}

GET /v1/vedic/charts/{id}/special-lagnas

Three derived lagnas that step forward from the natal ascendant at constant rates after sunrise:

• Bhava Lagna — 1 sign per 5 ghatis (≈ 2 hours).
• Hora Lagna — 1 sign per 2.5 ghatis (≈ 1 hour).
• Ghatika Lagna — 1 sign per ghati (24 minutes).

{
  "chart_id": "01HKD…",
  "bhava_lagna": 167.4,
  "hora_lagna": 232.1,
  "ghatika_lagna": 14.6
}