added PICK SKY ready gate: SigReservation.ready + countdown_remaining fields, Room.SKY_SELECT status + sig_select_started_at, sig_ready + sig_confirm views, WS notifiers for countdown_start/cancel/polarity_room_done/pick_sky_available, migration 0031, PICK SKY btn in hex center at SKY_SELECT, tray cell 2 sig card placeholder; FTs SRG1-8 written (pending JS/consumer)

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

src/apps/epic/models.py

@@ -33,10 +33,12 @@ class Room(models.Model):
 
     ROLE_SELECT = "ROLE_SELECT"
     SIG_SELECT = "SIG_SELECT"
+    SKY_SELECT = "SKY_SELECT"
     IN_GAME = "IN_GAME"
     TABLE_STATUS_CHOICES = [
         (ROLE_SELECT, "Role Select"),
         (SIG_SELECT, "Significator Select"),
+        (SKY_SELECT, "Sky Select"),
         (IN_GAME, "In Game"),
     ]
 
@@ -50,6 +52,7 @@ class Room(models.Model):
     table_status = models.CharField(
         max_length=20, choices=TABLE_STATUS_CHOICES, null=True, blank=True
     )
+    sig_select_started_at = models.DateTimeField(null=True, blank=True)
     renewal_period = models.DurationField(null=True, blank=True, default=timedelta(days=7))
     created_at = models.DateTimeField(auto_now_add=True)
     board_state = models.JSONField(default=dict)
@@ -369,6 +372,8 @@ class SigReservation(models.Model):
     role = models.CharField(max_length=2)
     polarity = models.CharField(max_length=7, choices=POLARITY_CHOICES)
     reserved_at = models.DateTimeField(auto_now_add=True)
+    ready = models.BooleanField(default=False)
+    countdown_remaining = models.IntegerField(null=True, blank=True)
 
     class Meta:
         constraints = [