feat(versioning) : add entity versioning with numbered versions and restore

Backend:
- Migration: version column on audit_logs and machines
- AuditLog, Machine, Composant, Piece, Product: version + skipAudit properties
- AbstractAuditSubscriber: auto-increment version, skip on restore, fix decimal diff
- Enriched snapshots with slots, custom fields and version number
- AuditLogRepository: findVersionHistory, findByVersion
- EntityVersionService: list, preview, restore with skeleton/integrity checks
- EntityVersionController: REST endpoints for all 4 entity types
- 11 tests covering list, preview, restore, auth

Frontend: update submodule pointer

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/Entity/AuditLog.php

@@ -38,6 +38,9 @@ class AuditLog
     #[ORM\Column(type: Types::STRING, length: 36, nullable: true)]
     private ?string $actorProfileId = null;
 
+    #[ORM\Column(type: Types::INTEGER, nullable: true)]
+    private ?int $version = null;
+
     #[ORM\Column(type: Types::DATETIME_IMMUTABLE, name: 'createdAt')]
     private DateTimeImmutable $createdAt;
 
@@ -48,6 +51,7 @@ class AuditLog
         ?array $diff = null,
         ?array $snapshot = null,
         ?string $actorProfileId = null,
+        ?int $version = null,
     ) {
         $this->entityType     = $entityType;
         $this->entityId       = $entityId;
@@ -55,6 +59,7 @@ class AuditLog
         $this->diff           = $diff;
         $this->snapshot       = $snapshot;
         $this->actorProfileId = $actorProfileId;
+        $this->version        = $version;
     }
 
     #[ORM\PrePersist]
@@ -109,6 +114,18 @@ class AuditLog
         return $this->createdAt;
     }
 
+    public function getVersion(): ?int
+    {
+        return $this->version;
+    }
+
+    public function setVersion(?int $version): static
+    {
+        $this->version = $version;
+
+        return $this;
+    }
+
     private function generateCuid(): string
     {
         // Keep the same lightweight CUID-like strategy used across the project.

src/Entity/Composant.php

@@ -145,6 +145,8 @@ class Composant
     #[Groups(['composant:read'])]
     private int $version = 1;
 
+    private bool $skipAudit = false;
+
     #[ORM\Column(type: Types::DATETIME_IMMUTABLE, name: 'createdAt')]
     #[Groups(['composant:read'])]
     private DateTimeImmutable $createdAt;
@@ -454,4 +456,16 @@ class Composant
 
         return $this;
     }
+
+    public function getSkipAudit(): bool
+    {
+        return $this->skipAudit;
+    }
+
+    public function setSkipAudit(bool $skipAudit): static
+    {
+        $this->skipAudit = $skipAudit;
+
+        return $this;
+    }
 }

src/Entity/Machine.php

@@ -108,6 +108,15 @@ class Machine
     #[ORM\Column(type: Types::DATETIME_IMMUTABLE, name: 'createdAt')]
     private DateTimeImmutable $createdAt;
 
+    #[ORM\Column(type: Types::INTEGER, options: ['default' => 1])]
+    private int $version = 1;
+
+    /**
+     * Transient flag — when true, audit subscribers skip this entity.
+     * Used by EntityVersionService::restore() to avoid duplicate AuditLogs.
+     */
+    private bool $skipAudit = false;
+
     #[ORM\Column(type: Types::DATETIME_IMMUTABLE, name: 'updatedAt')]
     private DateTimeImmutable $updatedAt;
 
@@ -265,4 +274,28 @@ class Machine
     {
         return $this->customFieldValues;
     }
+
+    public function getVersion(): int
+    {
+        return $this->version;
+    }
+
+    public function incrementVersion(): static
+    {
+        ++$this->version;
+
+        return $this;
+    }
+
+    public function getSkipAudit(): bool
+    {
+        return $this->skipAudit;
+    }
+
+    public function setSkipAudit(bool $skipAudit): static
+    {
+        $this->skipAudit = $skipAudit;
+
+        return $this;
+    }
 }

src/Entity/Piece.php

@@ -133,6 +133,8 @@ class Piece
     #[Groups(['piece:read'])]
     private int $version = 1;
 
+    private bool $skipAudit = false;
+
     #[ORM\Column(type: Types::DATETIME_IMMUTABLE, name: 'createdAt')]
     #[Groups(['piece:read'])]
     private DateTimeImmutable $createdAt;
@@ -354,4 +356,16 @@ class Piece
 
         return $this;
     }
+
+    public function getSkipAudit(): bool
+    {
+        return $this->skipAudit;
+    }
+
+    public function setSkipAudit(bool $skipAudit): static
+    {
+        $this->skipAudit = $skipAudit;
+
+        return $this;
+    }
 }

src/Entity/Product.php

@@ -124,6 +124,8 @@ class Product
     #[Groups(['product:read'])]
     private int $version = 1;
 
+    private bool $skipAudit = false;
+
     #[ORM\Column(type: Types::DATETIME_IMMUTABLE, name: 'createdAt')]
     #[Groups(['product:read'])]
     private DateTimeImmutable $createdAt;
@@ -268,4 +270,16 @@ class Product
 
         return $this;
     }
+
+    public function getSkipAudit(): bool
+    {
+        return $this->skipAudit;
+    }
+
+    public function setSkipAudit(bool $skipAudit): static
+    {
+        $this->skipAudit = $skipAudit;
+
+        return $this;
+    }
 }