Split Session.vue into modular components for better organization

[Copilot]

Session.vue was a monolithic 18k-line file. Extracted reusable UI sections into dedicated Vue 2 components, reducing it to ~16,900 lines (~1,083 line reduction).

New Components (src/components/pages/session/)

• VideoOverlay.vue - Draggable/resizable video overlay with projection canvas
• ImportDialog.vue - File type selection dialog
• ShareDialog.vue - URL/file sharing with settings
• SampleSelectionDialog.vue - Sample motion data picker
• GithubInfoDialog.vue - Repository info modal
• SceneControls.vue - Background, ground, axes, camera, lights settings
• TimelapseControls.vue - Timelapse mode with manager dialog
• ForcesDialog.vue - Forces visualization dialog with settings
• MarkersDialog.vue - Markers visualization dialog with settings
• RecordingControls.vue - Video recording section with settings dialog
• CaptureControls.vue - Image capture section with settings dialog
• PlotDialog.vue - Real-time plotting dialog (draggable/resizable)

Integration Pattern

Components use v-model for visibility and emit events for parent actions:

<ImportDialog
  v-model="showImportDialog"
  @select-file-type="selectFileType"
  @open-forces-dialog="openForcesDialogFromImport"
/>

Child component refs accessed via computed properties:

computed: {
  videoPreviewElement() {
    return this.$refs.videoOverlayComponent?.getVideoPreview();
  }
}

Original prompt

split the Session.vue into many files to be better organized, instead of one huge file. Follow the best practices and keep vue 2

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[Seeeeeyo]

@copilot Can we keep going to reduce even further?

[Copilot]

@copilot Can we keep going to reduce even further?

Extracted 5 more components (456dcdd):

• ForcesDialog.vue - Forces visualization dialog
• MarkersDialog.vue - Markers visualization dialog
• RecordingControls.vue - Video recording section
• CaptureControls.vue - Image capture section
• PlotDialog.vue - Real-time plotting dialog

Session.vue is now down from 17,975 to 16,892 lines (~1,083 line reduction) with 13 total extracted components.