Initialize FishIQ development foundation

apps/api/fishing/models.py

@@ -0,0 +1,40 @@
+from django.conf import settings
+from django.db import models
+
+class Species(models.Model):
+    common_name = models.CharField(max_length=120, unique=True)
+    scientific_name = models.CharField(max_length=160, blank=True)
+
+    def __str__(self): return self.common_name
+
+class WaterBody(models.Model):
+    name = models.CharField(max_length=180)
+    region = models.CharField(max_length=120)
+    latitude = models.DecimalField(max_digits=9, decimal_places=6)
+    longitude = models.DecimalField(max_digits=9, decimal_places=6)
+    species = models.ManyToManyField(Species, related_name="water_bodies", blank=True)
+
+    class Meta:
+        constraints = [models.UniqueConstraint(fields=["name", "region"], name="unique_water_body_region")]
+
+    def __str__(self): return f"{self.name}, {self.region}"
+
+class Trip(models.Model):
+    STATUS_CHOICES = [("planned", "Planned"), ("active", "Active"), ("complete", "Complete")]
+    owner = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name="trips")
+    water_body = models.ForeignKey(WaterBody, on_delete=models.PROTECT, related_name="trips")
+    target_species = models.ManyToManyField(Species, related_name="trips")
+    starts_at = models.DateTimeField()
+    ends_at = models.DateTimeField()
+    status = models.CharField(max_length=12, choices=STATUS_CHOICES, default="planned")
+    notes = models.TextField(blank=True)
+    created_at = models.DateTimeField(auto_now_add=True)
+
+class Recommendation(models.Model):
+    trip = models.ForeignKey(Trip, on_delete=models.CASCADE, related_name="recommendations")
+    title = models.CharField(max_length=180)
+    rationale = models.TextField()
+    tackle_setup = models.JSONField(default=dict)
+    confidence = models.DecimalField(max_digits=4, decimal_places=3)
+    generated_at = models.DateTimeField(auto_now_add=True)
+