Phase 0 : entités, migrations, API Platform, PostGIS

- API Platform + Doctrine ORM + jsor/doctrine-postgis installés
- 6 entités Symfony (SargassumObservation, SargassumForecast,
  DataIngestionJob, CoastalPoint, ImpactScore, UserFeedback)
- Migration initiale manuelle avec CREATE EXTENSION postgis,
  toutes les tables, index GIST et BTREE
- doctrine.yaml configuré pour PostgreSQL 16 + types PostGIS
- Roadmap Phase 0 complète

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

backend/src/Entity/CoastalPoint.php

@@ -0,0 +1,71 @@
+<?php
+
+namespace App\Entity;
+
+use ApiPlatform\Metadata\ApiResource;
+use ApiPlatform\Metadata\Get;
+use ApiPlatform\Metadata\GetCollection;
+use App\Repository\CoastalPointRepository;
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
+use Doctrine\ORM\Mapping as ORM;
+use Symfony\Bridge\Doctrine\Types\UuidType;
+use Symfony\Component\Uid\Uuid;
+
+#[ORM\Entity(repositoryClass: CoastalPointRepository::class)]
+#[ORM\Index(columns: ['type'], name: 'idx_coastal_type')]
+#[ORM\Index(columns: ['region'], name: 'idx_coastal_region')]
+#[ApiResource(
+    operations: [
+        new GetCollection(),
+        new Get(),
+    ]
+)]
+class CoastalPoint
+{
+    #[ORM\Id]
+    #[ORM\Column(type: UuidType::NAME, unique: true)]
+    #[ORM\GeneratedValue(strategy: 'CUSTOM')]
+    #[ORM\CustomIdGenerator(class: 'doctrine.uuid_generator')]
+    private ?Uuid $id = null;
+
+    #[ORM\Column(length: 150)]
+    private ?string $name = null;
+
+    #[ORM\Column(type: 'geometry', options: ['geometry_type' => 'POINT', 'srid' => 4326])]
+    private mixed $geometry = null;
+
+    #[ORM\Column(length: 30)]
+    private ?string $type = null;
+
+    #[ORM\Column(length: 100)]
+    private ?string $region = null;
+
+    #[ORM\OneToMany(targetEntity: ImpactScore::class, mappedBy: 'coastalPoint')]
+    private Collection $impactScores;
+
+    #[ORM\OneToMany(targetEntity: UserFeedback::class, mappedBy: 'coastalPoint')]
+    private Collection $feedbacks;
+
+    public function __construct()
+    {
+        $this->impactScores = new ArrayCollection();
+        $this->feedbacks = new ArrayCollection();
+    }
+
+    public function getId(): ?Uuid { return $this->id; }
+    public function getName(): ?string { return $this->name; }
+    public function setName(string $name): static { $this->name = $name; return $this; }
+    public function getGeometry(): mixed { return $this->geometry; }
+    public function setGeometry(mixed $geometry): static { $this->geometry = $geometry; return $this; }
+    public function getType(): ?string { return $this->type; }
+    public function setType(string $type): static { $this->type = $type; return $this; }
+    public function getRegion(): ?string { return $this->region; }
+    public function setRegion(string $region): static { $this->region = $region; return $this; }
+
+    /** @return Collection<int, ImpactScore> */
+    public function getImpactScores(): Collection { return $this->impactScores; }
+
+    /** @return Collection<int, UserFeedback> */
+    public function getFeedbacks(): Collection { return $this->feedbacks; }
+}