Add KiCad API v2, orderdetail export control, EDA status indicator, BOM improvements

- Add KiCad API v2 endpoints (/kicad-api/v2) with volatile field support
  for stock and storage location (shown but not saved to schematic)
- Add kicad_export flag to Orderdetail entity for per-supplier SPN control
  (backward compatible: if no flag set, all SPNs exported as before)
- Add EDA completeness indicator column in parts datatable (bolt icon)
- Add ?minimal=true query param for faster category parts loading
- Improve category descriptions (use comment instead of URL when available)
- Improve BOM importer multi-footprint support: merge entries by Part-DB
  part ID when linked, tracking footprint variants in comments
- Fix KiCost manf/manf# fields always present (not conditional on orderdetails)
- Fix duplicate getEdaInfo() call in shouldPartBeVisible
- Consolidate supplier SPN and KiCost field generation into single loop

src/Entity/PriceInformations/Orderdetail.php

@@ -122,6 +122,13 @@ class Orderdetail extends AbstractDBElement implements TimeStampableInterface, N
     #[ORM\Column(type: Types::BOOLEAN)]
     protected bool $obsolete = false;
 
+    /**
+     * @var bool Whether this orderdetail's supplier part number should be exported as a KiCad field
+     */
+    #[Groups(['full', 'import', 'orderdetail:read', 'orderdetail:write'])]
+    #[ORM\Column(type: Types::BOOLEAN)]
+    protected bool $kicad_export = false;
+
     /**
      * @var string The URL to the product on the supplier's website
      */
@@ -418,6 +425,21 @@ class Orderdetail extends AbstractDBElement implements TimeStampableInterface, N
         return $this;
     }
 
+    public function isKicadExport(): bool
+    {
+        return $this->kicad_export;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setKicadExport(bool $kicad_export): self
+    {
+        $this->kicad_export = $kicad_export;
+
+        return $this;
+    }
+
     public function getName(): string
     {
         return $this->getSupplierPartNr();