Refactor code structure for improved readability and maintainability

diagrams/backend/backend1.puml

@@ -0,0 +1,77 @@
+@startuml Modèles de données
+
+class Project {
+  +id: integer
+  +name: string
+  +description: string
+  +start_date: date
+  +status: integer
+  +getAllProjects()
+  +getProjectById(id)
+  +createProject(name, description, startDate, status)
+  +updateProject(id, updates)
+  +updateProjectStatus(id, status)
+  +deleteProject(id)
+  +findCurrentRenderingProject()
+  +findStoppingProject()
+}
+
+class Measurement {
+  +id: integer
+  +project_id: integer
+  +timestamp: datetime
+  +path: string
+  +temperature: float
+  +humidity: float
+  +order_id: integer
+  +getAllMeasurements()
+  +getMeasurementById(id)
+  +getMeasurementByProjectAndOrderId(projectId, orderId)
+  +getMeasurementsByProjectId(projectId)
+  +createMeasurement(projectId, timestamp, path, temperature, humidity, orderId)
+  +updateMeasurement(id, updates)
+  +deleteMeasurement(id)
+  +getNextOrderId(projectId)
+}
+
+class Video {
+  +id: integer
+  +project_id: integer
+  +measurement_ids: string
+  +name: string
+  +resolution: string
+  +duration: integer
+  +status: integer
+  +progress: float
+  +video_file: string
+  +started_at: datetime
+  +updated_at: datetime
+  +eta: float
+  +getAllVideos()
+  +getVideoById(id)
+  +getVideosByProjectId(projectId)
+  +createVideo(projectId, measurementIds, name, resolution, duration, status)
+  +updateVideo(id, updates)
+  +updateVideoFilePath(id, videoFile)
+  +updateVideoStatus(id, status)
+  +deleteVideo(id)
+  +getUnfinishedVideos()
+  +updateVideoProgress(id, progress, eta)
+}
+
+class Camera {
+  +id: integer
+  +interval: integer
+  +maintenance: integer
+  +active: integer
+  +getCamera()
+  +updateCamera(id, updates)
+  +deleteCamera(id)
+  +initializeCamera()
+}
+
+Project "1" -- "0..*" Measurement : possède >
+Project "1" -- "0..*" Video : possède >
+Measurement "1..*" -- "0..*" Video : utilisée dans >
+
+@enduml