feat: add progression models and service structure

apps/skills/apps.py

@@ -2,5 +2,5 @@ from django.apps import AppConfig
 
 
 class SkillsConfig(AppConfig):
-            default_auto_field = "django.db.models.BigAutoField"
-	    name = 'apps.skills'
+	default_auto_field = "django.db.models.BigAutoField"
+	name = 'apps.skills'

apps/skills/models.py

@@ -1,3 +1,100 @@
+# apps/skills/models.py
+
+import uuid
 from django.db import models
 
-# Create your models here.
+
+class SkillTree(models.Model):
+    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    slug = models.SlugField(max_length=80, unique=True)
+    name = models.CharField(max_length=120)
+    description = models.TextField(blank=True)
+    icon = models.CharField(max_length=80, blank=True)
+    color = models.CharField(max_length=7, blank=True)
+    is_active = models.BooleanField(default=True)
+    sort_order = models.PositiveIntegerField(default=0)
+
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+
+class Skill(models.Model):
+    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    tree = models.ForeignKey(
+        SkillTree,
+        on_delete=models.CASCADE,
+        related_name="skills",
+    )
+    slug = models.SlugField(max_length=80)
+    name = models.CharField(max_length=120)
+    description = models.TextField(blank=True)
+    icon = models.CharField(max_length=80, blank=True)
+
+    # Utilisable pour afficher le graphe
+    position_x = models.IntegerField(default=0)
+    position_y = models.IntegerField(default=0)
+    sort_order = models.PositiveIntegerField(default=0)
+
+    is_active = models.BooleanField(default=True)
+    prerequisites = models.ManyToManyField(
+        "self",
+        symmetrical=False,
+        blank=True,
+        related_name="unlocks",
+    )
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(
+                fields=("tree", "slug"),
+                name="unique_skill_slug_per_tree",
+            )
+        ]
+
+class Task(models.Model):
+    class ValidationMode(models.TextChoices):
+        SELF = "self", "Auto-validation"
+        PEER = "peer", "Validation par un tiers"
+        PROOF = "proof", "Preuve demandée"
+
+    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    slug = models.SlugField(max_length=100, unique=True)
+    name = models.CharField(max_length=160)
+    description = models.TextField(blank=True)
+
+    base_xp = models.PositiveIntegerField()
+    validation_mode = models.CharField(
+        max_length=16,
+        choices=ValidationMode.choices,
+        default=ValidationMode.SELF,
+    )
+
+    cooldown_seconds = models.PositiveIntegerField(default=0)
+    daily_limit = models.PositiveIntegerField(null=True, blank=True)
+    is_repeatable = models.BooleanField(default=True)
+    is_active = models.BooleanField(default=True)
+
+    skills = models.ManyToManyField(
+        Skill,
+        through="TaskSkillReward",
+        related_name="tasks",
+    )
+
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+
+class TaskSkillReward(models.Model):
+    task = models.ForeignKey(Task, on_delete=models.CASCADE)
+    skill = models.ForeignKey(Skill, on_delete=models.CASCADE)
+
+    # Permet, par exemple, de répartir 10 XP entre maison et écologie.
+    xp = models.PositiveIntegerField()
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(
+                fields=("task", "skill"),
+                name="unique_reward_per_task_skill",
+            )
+        ]