feat(manufacturing): enrich inventory list with customer/user details and filters

The inventory list and detail page previously only showed raw
customer_id / user_list references. list_devices now batch-resolves
customer names and user display names/emails (via Firestore get_all(),
avoiding an N+1 round trip per device) and exposes them as
customer_name / users on DeviceInventoryItem. Search now matches
against device name, console name, customer name, and assigned users
in addition to serial/owner/batch.

Also adds hw_types (multi-select board type) and has_users filters to
GET /manufacturing/devices, and carries console_name through for
display. DeviceInventoryDetail is updated to show and use all of this
(customer name, assigned users, new UI components for signal/charts).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

backend/manufacturing/models.py

@@ -80,6 +80,12 @@ class BatchResponse(BaseModel):
     created_at: str
 
 
+class DeviceUserSummary(BaseModel):
+    user_id: str
+    display_name: str = ""
+    email: str = ""
+
+
 class DeviceInventoryItem(BaseModel):
     id: str
     serial_number: str
@@ -91,9 +97,16 @@ class DeviceInventoryItem(BaseModel):
     owner: Optional[str] = None
     assigned_to: Optional[str] = None
     device_name: Optional[str] = None
+    # Console-only friendly name (mirrors devices.models.DeviceCreate.console_name).
+    # Only populated once a device has been claimed/onboarded in the app — null
+    # for freshly manufactured inventory, which is expected and should render
+    # as a graceful fallback (e.g. serial number) on the frontend.
+    console_name: Optional[str] = None
     lifecycle_history: Optional[List["LifecycleEntry"]] = None
     customer_id: Optional[str] = None
+    customer_name: Optional[str] = None
     user_list: Optional[List[str]] = None
+    users: Optional[List[DeviceUserSummary]] = None
 
 
 class DeviceInventoryListResponse(BaseModel):