Archive improvements: list view actions, object count, cross-view highlighting

Added:
  - Archive list view: edit/delete buttons and context menu with full feature parity
  - Archive object count display on cards (extracted from 3MF metadata)
  - Cross-view archive highlighting: click in calendar/project to highlight in card view
  - Context menu button (⋮) on cards and list rows for easy access
  - Spoolman: clear location when spools are removed from AMS

  Fixed:
  - QR code endpoint 500 error (added qrcode[pil] dependency)

backend/app/api/routes/archives.py

@@ -1464,16 +1464,20 @@ async def get_qrcode(
     db: AsyncSession = Depends(get_db),
 ):
     """Generate a QR code that links to this archive."""
-    import qrcode
+    try:
+        import qrcode
+        from PIL import Image as PILImage
+    except ImportError:
+        raise HTTPException(500, "QR code generation not available - qrcode package not installed")
 
     result = await db.execute(select(PrintArchive).where(PrintArchive.id == archive_id))
     archive = result.scalar_one_or_none()
     if not archive:
         raise HTTPException(404, "Archive not found")
 
-    # Build URL to archive detail page
+    # Build URL to archive download
     base_url = str(request.base_url).rstrip("/")
-    archive_url = f"{base_url}/archives?id={archive_id}"
+    archive_url = f"{base_url}/api/v1/archives/{archive_id}/download"
 
     # Generate QR code
     qr = qrcode.QRCode(
@@ -1487,13 +1491,16 @@ async def get_qrcode(
 
     img = qr.make_image(fill_color="black", back_color="white")
 
+    # Convert to PIL Image for resizing
+    pil_img = img.get_image()
+
     # Resize if needed
     if size != 200:
-        img = img.resize((size, size))
+        pil_img = pil_img.resize((size, size), PILImage.Resampling.LANCZOS)
 
     # Convert to bytes
     buffer = io.BytesIO()
-    img.save(buffer, format="PNG")
+    pil_img.save(buffer, format="PNG")
     buffer.seek(0)
 
     return Response(

backend/app/schemas/archive.py

@@ -1,6 +1,6 @@
 from datetime import datetime
 
-from pydantic import BaseModel
+from pydantic import BaseModel, model_validator
 
 
 class ArchiveBase(BaseModel):
@@ -45,6 +45,9 @@ class ArchiveResponse(BaseModel):
     duplicates: list[ArchiveDuplicate] | None = None
     duplicate_count: int = 0  # Quick count for list views
 
+    # Object count (computed from extra_data.printable_objects)
+    object_count: int | None = None
+
     print_name: str | None
     print_time_seconds: int | None  # Estimated time from slicer
     actual_time_seconds: int | None = None  # Computed from started_at/completed_at
@@ -81,6 +84,15 @@ class ArchiveResponse(BaseModel):
 
     created_at: datetime
 
+    @model_validator(mode="after")
+    def compute_object_count(self) -> "ArchiveResponse":
+        """Compute object_count from extra_data.printable_objects if not set."""
+        if self.object_count is None and self.extra_data:
+            printable_objects = self.extra_data.get("printable_objects")
+            if printable_objects and isinstance(printable_objects, dict):
+                self.object_count = len(printable_objects)
+        return self
+
     class Config:
         from_attributes = True