PICK SKY overlay: D3 natal wheel, Character model, PySwiss aspects+tz

PySwiss:
- calculate_aspects() in calc.py (conjunction/sextile/square/trine/opposition with orbs)
- /api/tz/ endpoint (timezonefinder lat/lon → IANA timezone)
- aspects included in /api/chart/ response
- timezonefinder==8.2.2 added to requirements
- 14 new unit tests (test_calc.py) + 12 new integration tests (TimezoneApiTest, aspect fields)

Main app:
- Sign, Planet, AspectType, HouseLabel reference models + seeded migrations (0032–0033)
- Character model with birth_dt/lat/lon/place, house_system, chart_data, celtic_cross,
  confirmed_at/retired_at lifecycle (migration 0034)
- natus_preview proxy view: calls PySwiss /api/chart/ + optional /api/tz/ auto-resolution,
  computes planet-in-house distinctions, returns enriched JSON
- natus_save view: find-or-create draft Character, confirmed_at on action='confirm'
- natus-wheel.js: D3 v7 SVG natal wheel (elements pie, signs, houses, planets, aspects,
  ASC/MC axes); NatusWheel.draw() / redraw() / clear()
- _natus_overlay.html: Nominatim place autocomplete (debounced 400ms), geolocation button
  with reverse-geocode city name, live chart preview (debounced 300ms), tz auto-fill,
  NVM / SAVE SKY footer; html.natus-open class toggle pattern
- _natus.scss: Gaussian backdrop+modal, two-column form|wheel layout, suggestion dropdown,
  portrait collapse at 600px, landscape sidebar z-index sink
- room.html: include overlay when table_status == SKY_SELECT

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/apps/epic/migrations/0033_seed_astro_reference_tables.py

@@ -0,0 +1,106 @@
+"""
+Data migration: seed Sign, Planet, AspectType, and HouseLabel tables.
+
+These are stable astrological reference rows — never user-edited.
+The data matches the constants in pyswiss/apps/charts/calc.py so that
+the proxy view and D3 wheel share a single source of truth.
+"""
+from django.db import migrations
+
+
+# ── Signs ────────────────────────────────────────────────────────────────────
+# (order, name, symbol, element, modality, start_degree)
+SIGNS = [
+    (0,  'Aries',       '♈', 'Fire',  'Cardinal',   0.0),
+    (1,  'Taurus',      '♉', 'Earth', 'Fixed',      30.0),
+    (2,  'Gemini',      '♊', 'Air',   'Mutable',    60.0),
+    (3,  'Cancer',      '♋', 'Water', 'Cardinal',   90.0),
+    (4,  'Leo',         '♌', 'Fire',  'Fixed',     120.0),
+    (5,  'Virgo',       '♍', 'Earth', 'Mutable',   150.0),
+    (6,  'Libra',       '♎', 'Air',   'Cardinal',  180.0),
+    (7,  'Scorpio',     '♏', 'Water', 'Fixed',     210.0),
+    (8,  'Sagittarius', '♐', 'Fire',  'Mutable',   240.0),
+    (9,  'Capricorn',   '♑', 'Earth', 'Cardinal',  270.0),
+    (10, 'Aquarius',    '♒', 'Air',   'Fixed',     300.0),
+    (11, 'Pisces',      '♓', 'Water', 'Mutable',   330.0),
+]
+
+# ── Planets ───────────────────────────────────────────────────────────────────
+# (order, name, symbol)
+PLANETS = [
+    (0, 'Sun',     '☉'),
+    (1, 'Moon',    '☽'),
+    (2, 'Mercury', '☿'),
+    (3, 'Venus',   '♀'),
+    (4, 'Mars',    '♂'),
+    (5, 'Jupiter', '♃'),
+    (6, 'Saturn',  '♄'),
+    (7, 'Uranus',  '♅'),
+    (8, 'Neptune', '♆'),
+    (9, 'Pluto',   '♇'),
+]
+
+# ── Aspect types ──────────────────────────────────────────────────────────────
+# (name, symbol, angle, orb)  — mirrors ASPECTS constant in pyswiss calc.py
+ASPECT_TYPES = [
+    ('Conjunction', '☌',  0,   8.0),
+    ('Sextile',     '⚹', 60,   6.0),
+    ('Square',      '□', 90,   8.0),
+    ('Trine',       '△', 120,  8.0),
+    ('Opposition',  '☍', 180, 10.0),
+]
+
+# ── House labels (distinctions) ───────────────────────────────────────────────
+# (number, name, keywords)
+HOUSE_LABELS = [
+    (1,  'Self',          'identity, appearance, first impressions'),
+    (2,  'Worth',         'possessions, values, finances'),
+    (3,  'Education',     'communication, siblings, short journeys'),
+    (4,  'Family',        'home, roots, ancestry'),
+    (5,  'Creation',      'creativity, romance, children, pleasure'),
+    (6,  'Ritual',        'service, health, daily routines'),
+    (7,  'Cooperation',   'partnerships, marriage, open enemies'),
+    (8,  'Regeneration',  'transformation, shared resources, death'),
+    (9,  'Enterprise',    'philosophy, travel, higher learning'),
+    (10, 'Career',        'public life, reputation, authority'),
+    (11, 'Reward',        'friends, groups, aspirations'),
+    (12, 'Reprisal',      'hidden matters, karma, self-undoing'),
+]
+
+
+def forward(apps, schema_editor):
+    Sign       = apps.get_model('epic', 'Sign')
+    Planet     = apps.get_model('epic', 'Planet')
+    AspectType = apps.get_model('epic', 'AspectType')
+    HouseLabel = apps.get_model('epic', 'HouseLabel')
+
+    for order, name, symbol, element, modality, start_degree in SIGNS:
+        Sign.objects.create(
+            order=order, name=name, symbol=symbol,
+            element=element, modality=modality, start_degree=start_degree,
+        )
+
+    for order, name, symbol in PLANETS:
+        Planet.objects.create(order=order, name=name, symbol=symbol)
+
+    for name, symbol, angle, orb in ASPECT_TYPES:
+        AspectType.objects.create(name=name, symbol=symbol, angle=angle, orb=orb)
+
+    for number, name, keywords in HOUSE_LABELS:
+        HouseLabel.objects.create(number=number, name=name, keywords=keywords)
+
+
+def reverse(apps, schema_editor):
+    for model_name in ('Sign', 'Planet', 'AspectType', 'HouseLabel'):
+        apps.get_model('epic', model_name).objects.all().delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('epic', '0032_astro_reference_tables'),
+    ]
+
+    operations = [
+        migrations.RunPython(forward, reverse_code=reverse),
+    ]