feat(ui): raw material lots and production inputs

- Pages for raw material lots (beeswax, propolis): list, create in grams
  with optional apiary, detail with stock card (harvested / used in
  production / withdrawn / remaining) and "used in" batches.
- Production batch form takes the raw material used (lot + grams) and the
  batch page shows what it was made from - traceability both ways.
- Sidebar entry "Rohstoffe".
- Removes backend files that were committed into ApiCore-Frontend/src by
  mistake in e52a605 (copies of ApiCore-Backend/src/raw-materials).

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

ApiCore-Frontend/src/app/(app)/sidebar.tsx

@@ -9,6 +9,7 @@ import {
   Database,
   Droplet,
   Factory,
+  Boxes,
   FileClock,
   FlaskConical,
   Hexagon,
@@ -82,6 +83,12 @@ const NAV_GROUPS: NavGroup[] = [
       { label: "Schleuderungen", href: "/extractions", icon: FlaskConical },
       { label: "Honigchargen", href: "/honey-batches", icon: Droplet },
       { label: "Abfüllungen", href: "/bottling", icon: Package },
+      {
+        label: "Rohstoffe",
+        href: "/raw-materials",
+        icon: Boxes,
+        permission: "raw-material:read",
+      },
       {
         label: "Herstellungschargen",
         href: "/production-batches",
@@ -128,7 +135,12 @@ const ADMIN_GROUP: NavGroup = {
       icon: Database,
       permission: ["backup:export", "backup:import", "import:execute"],
     },
-    { label: "Audit-Log", href: "/settings/audit-log", icon: History, permission: "audit:read" },
+    {
+      label: "Audit-Log",
+      href: "/settings/audit-log",
+      icon: History,
+      permission: "audit:read",
+    },
   ],
 };
 
@@ -157,7 +169,10 @@ function SidebarLink({ item, pathname }: { item: NavItem; pathname: string }) {
   );
 }
 
-function hasNavPermission(user: AuthUser, permission: NavItem["permission"]): boolean {
+function hasNavPermission(
+  user: AuthUser,
+  permission: NavItem["permission"],
+): boolean {
   if (!permission) {
     return true;
   }
@@ -185,13 +200,19 @@ export function Sidebar({ user }: { user: AuthUser }) {
           className="flex size-8 items-center justify-center rounded-xl shadow-[var(--shadow-soft)]"
           style={{ background: "var(--gradient-honey)" }}
         >
-          <Hexagon className="size-4.5 fill-white/25 text-white" strokeWidth={2.25} />
+          <Hexagon
+            className="size-4.5 fill-white/25 text-white"
+            strokeWidth={2.25}
+          />
         </span>
         ApiCore
       </Link>
       <nav className="flex flex-1 flex-col gap-5">
         {groups.map((group, index) => (
-          <div key={group.label ?? `group-${index}`} className="flex flex-col gap-0.5">
+          <div
+            key={group.label ?? `group-${index}`}
+            className="flex flex-col gap-0.5"
+          >
             {group.label ? (
               <p className="px-3 pb-1 text-xs font-semibold tracking-wide text-muted-foreground/80 uppercase">
                 {group.label}