Shorten company badges to single letters and remove intern direction

Company badges: US→U, SDT→S (B and G already single letter).
Direction: only intrat (↓ green) and iesit (↑ orange), removed intern since no longer used.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/modules/registratura/components/registry-table.tsx

@@ -16,7 +16,6 @@ import {
   Check,
   ArrowDownLeft,
   ArrowUpRight,
-  ArrowLeftRight,
 } from "lucide-react";
 import { Button } from "@/shared/components/ui/button";
 import { Badge } from "@/shared/components/ui/badge";
@@ -555,8 +554,8 @@ function CopyNumberButton({ entry }: { entry: RegistryEntry }) {
 // ── Company badge colors ──
 const COMPANY_BADGE: Record<string, { label: string; className: string }> = {
   beletage:        { label: "B",   className: "bg-blue-600 text-white" },
-  "urban-switch":  { label: "US",  className: "bg-violet-600 text-white" },
-  "studii-de-teren": { label: "SDT", className: "bg-emerald-600 text-white" },
+  "urban-switch":  { label: "U",   className: "bg-violet-600 text-white" },
+  "studii-de-teren": { label: "S",   className: "bg-emerald-600 text-white" },
   group:           { label: "G",   className: "bg-zinc-500 text-white" },
 };
 
@@ -565,19 +564,10 @@ function CompactNumber({ entry }: { entry: RegistryEntry }) {
   const plain = (entry.number ?? "").replace(/^[A-Z]+-/, "");
   const badge = COMPANY_BADGE[entry.company ?? ""] ?? { label: "B", className: "bg-blue-600 text-white" };
 
-  // Direction icon
-  const DirIcon =
-    entry.direction === "intrat"
-      ? ArrowDownLeft
-      : entry.direction === "iesit"
-        ? ArrowUpRight
-        : ArrowLeftRight;
+  // Direction icon (only intrat / iesit)
+  const DirIcon = entry.direction === "intrat" ? ArrowDownLeft : ArrowUpRight;
   const dirColor =
-    entry.direction === "intrat"
-      ? "text-green-600"
-      : entry.direction === "iesit"
-        ? "text-orange-500"
-        : "text-muted-foreground";
+    entry.direction === "intrat" ? "text-green-600" : "text-orange-500";
 
   return (
     <span className="inline-flex items-center gap-1">