feat(registratura): add Conex (reply) + Inchide buttons, reorder completari last

- Conex button on table rows (Reply icon, blue) — opens new entry with threadParentId pre-set + flipped direction
- Conex button on detail panel — same behavior
- Inchide button on table rows (CheckCircle2 icon, green) — only for open entries
- replyTo prop on RegistryEntryForm: pre-sets threadParentId + direction flip (intrat→iesit, iesit→intrat)
- Card header shows "Conex la BTG-0042/2026" with blue badge when replying
- Completari moved to last position in deadline category order

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

src/modules/registratura/services/deadline-catalog.ts

@@ -639,7 +639,7 @@ export const DIRECTION_CATEGORIES: Record<
   RegistryDirection,
   DeadlineCategory[]
 > = {
-  iesit: ["certificat", "avize", "completari", "urbanism", "autorizare"],
+  iesit: ["certificat", "avize", "urbanism", "autorizare", "completari"],
   intrat: ["contestatie"],
 };