feat(registratura): atomic numbering, reserved slots, audit trail, API endpoints + theme toggle animation

Registratura module:
- Atomic sequence numbering (BTG-2026-IN-00125 format) via PostgreSQL upsert
- Reserved monthly slots (2/company/month) for late registrations
- Append-only audit trail with diff tracking
- REST API: /api/registratura (CRUD), /api/registratura/reserved, /api/registratura/audit
- Auth: NextAuth session + Bearer API key support
- New "intern" direction type with UI support (form, filters, table, detail panel)
- Prisma models: RegistrySequence, RegistryAudit

Theme toggle:
- SVG mask-based sun/moon morph with 360° spin animation
- Inverted logic (sun in dark mode, moon in light mode)

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

src/modules/registratura/components/registry-entry-detail.tsx

@@ -2,6 +2,7 @@
 
 import {
   ArrowDownToLine,
+  ArrowRightLeft,
   ArrowUpFromLine,
   Calendar,
   CheckCircle2,
@@ -64,6 +65,12 @@ const DIRECTION_CONFIG = {
     class:
       "bg-orange-100 text-orange-800 dark:bg-orange-900/40 dark:text-orange-300",
   },
+  intern: {
+    label: "Intern",
+    icon: ArrowRightLeft,
+    class:
+      "bg-purple-100 text-purple-800 dark:bg-purple-900/40 dark:text-purple-300",
+  },
 } as const;
 
 const STATUS_CONFIG = {
@@ -76,6 +83,10 @@ const STATUS_CONFIG = {
     label: "Închis",
     class: "bg-gray-100 text-gray-600 dark:bg-gray-800 dark:text-gray-400",
   },
+  reserved: {
+    label: "Rezervat",
+    class: "bg-amber-100 text-amber-800 dark:bg-amber-900/40 dark:text-amber-300",
+  },
 } as const;
 
 const RESOLUTION_LABELS: Record<string, string> = {

src/modules/registratura/components/registry-entry-form.tsx

@@ -15,6 +15,7 @@ import {
   Globe,
   ArrowDownToLine,
   ArrowUpFromLine,
+  ArrowRightLeft,
   HardDrive,
   FolderOpen,
   Link2,
@@ -554,6 +555,19 @@ export function RegistryEntryForm({
               <ArrowUpFromLine className="h-4 w-4" />
               Ieșit
             </button>
+            <button
+              type="button"
+              onClick={() => setDirection("intern")}
+              className={cn(
+                "flex flex-1 items-center justify-center gap-1.5 rounded-md px-3 py-2 text-sm font-medium transition-all",
+                direction === "intern"
+                  ? "bg-purple-500 text-white shadow-sm"
+                  : "text-muted-foreground hover:text-foreground hover:bg-background",
+              )}
+            >
+              <ArrowRightLeft className="h-4 w-4" />
+              Intern
+            </button>
           </div>
         </div>
         <div>

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

@@ -41,6 +41,7 @@ export function RegistryFilters({ filters, onUpdate }: RegistryFiltersProps) {
           <SelectItem value="all">Toate</SelectItem>
           <SelectItem value="intrat">Intrat</SelectItem>
           <SelectItem value="iesit">Ieșit</SelectItem>
+          <SelectItem value="intern">Intern</SelectItem>
         </SelectContent>
       </Select>
 
@@ -74,6 +75,7 @@ export function RegistryFilters({ filters, onUpdate }: RegistryFiltersProps) {
           <SelectItem value="all">Toate</SelectItem>
           <SelectItem value="deschis">Deschis</SelectItem>
           <SelectItem value="inchis">Închis</SelectItem>
+          <SelectItem value="reserved">Rezervat</SelectItem>
         </SelectContent>
       </Select>
 

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

@@ -82,7 +82,7 @@ const COLUMNS: ColumnDef[] = [
     id: "direction",
     label: "Dir.",
     tooltip:
-      "Direcție: Intrat = primit de la terți, Ieșit = trimis către terți",
+      "Direcție: Intrat = primit, Ieșit = trimis, Intern = intern",
     defaultVisible: true,
   },
   {
@@ -141,6 +141,7 @@ const STORAGE_KEY = "registratura:visible-columns";
 const DIRECTION_LABELS: Record<string, string> = {
   intrat: "Intrat",
   iesit: "Ieșit",
+  intern: "Intern",
 };
 
 function getDocTypeLabel(type: string): string {
@@ -152,6 +153,7 @@ function getDocTypeLabel(type: string): string {
 const STATUS_LABELS: Record<string, string> = {
   deschis: "Deschis",
   inchis: "Închis",
+  reserved: "Rezervat",
 };
 
 function loadVisibleColumns(): Set<ColumnId> {
@@ -327,7 +329,11 @@ export function RegistryTable({
                     <td className="px-3 py-2">
                       <Badge
                         variant={
-                          entry.direction === "intrat" ? "default" : "secondary"
+                          entry.direction === "intrat"
+                            ? "default"
+                            : entry.direction === "intern"
+                              ? "outline"
+                              : "secondary"
                         }
                         className="text-xs"
                       >
@@ -424,9 +430,16 @@ export function RegistryTable({
                     <td className="px-3 py-2">
                       <Badge
                         variant={
-                          entry.status === "deschis" ? "default" : "outline"
+                          entry.status === "deschis"
+                            ? "default"
+                            : entry.status === "reserved"
+                              ? "secondary"
+                              : "outline"
                         }
-                        className="text-xs"
+                        className={cn(
+                          "text-xs",
+                          entry.status === "reserved" && "border-dashed",
+                        )}
                       >
                         {STATUS_LABELS[entry.status]}
                       </Badge>

src/modules/registratura/hooks/use-registry.ts

@@ -16,8 +16,8 @@ import {
   getFullEntry,
   saveEntry,
   deleteEntry,
-  generateRegistryNumber,
 } from "../services/registry-service";
+import type { RegistryAuditEvent } from "../types";
 import {
   createTrackedDeadline,
   resolveDeadline as resolveDeadlineFn,
@@ -71,44 +71,42 @@ export function useRegistry() {
     async (
       data: Omit<RegistryEntry, "id" | "number" | "createdAt" | "updatedAt">,
     ) => {
-      const freshEntries = await getAllEntries(storage);
-      const now = new Date().toISOString();
-      const number = generateRegistryNumber(
-        data.company,
-        data.date,
-        freshEntries,
-      );
-      const entry: RegistryEntry = {
-        ...data,
-        id: uuid(),
-        number,
-        registrationDate: new Date().toISOString().slice(0, 10),
-        createdAt: now,
-        updatedAt: now,
-      };
-      await saveEntry(storage, blobStorage, entry);
+      // Use the API for atomic server-side numbering + audit
+      const res = await fetch("/api/registratura", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ entry: data }),
+      });
+      const result = await res.json();
+
+      if (!result.success) {
+        throw new Error(result.error ?? "Failed to create entry");
+      }
+
+      const entry = result.entry as RegistryEntry;
       setEntries((prev) => [entry, ...prev]);
       return entry;
     },
-    [storage, blobStorage],
+    [],
   );
 
   const updateEntry = useCallback(
     async (id: string, updates: Partial<RegistryEntry>) => {
-      const existing = entries.find((e) => e.id === id);
-      if (!existing) return;
-      const updated: RegistryEntry = {
-        ...existing,
-        ...updates,
-        id: existing.id,
-        number: existing.number,
-        createdAt: existing.createdAt,
-        updatedAt: new Date().toISOString(),
-      };
-      await saveEntry(storage, blobStorage, updated);
+      // Use the API for server-side diff audit
+      const res = await fetch("/api/registratura", {
+        method: "PUT",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ id, updates }),
+      });
+      const result = await res.json();
+
+      if (!result.success) {
+        throw new Error(result.error ?? "Failed to update entry");
+      }
+
       await refresh();
     },
-    [storage, blobStorage, refresh, entries],
+    [refresh],
   );
 
   const removeEntry = useCallback(
@@ -268,6 +266,35 @@ export function useRegistry() {
     [storage, blobStorage],
   );
 
+  // ── Reserved slots ──
+
+  const createReservedSlots = useCallback(
+    async (company: string, year: number, month: number) => {
+      const res = await fetch("/api/registratura/reserved", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ company, year, month }),
+      });
+      const result = await res.json();
+      if (result.success) await refresh();
+      return result;
+    },
+    [refresh],
+  );
+
+  // ── Audit trail ──
+
+  const loadAuditHistory = useCallback(
+    async (entryId: string): Promise<RegistryAuditEvent[]> => {
+      const res = await fetch(
+        `/api/registratura/audit?entryId=${encodeURIComponent(entryId)}`,
+      );
+      const result = await res.json();
+      return result.events ?? [];
+    },
+    [],
+  );
+
   return {
     entries: filteredEntries,
     allEntries: entries,
@@ -282,6 +309,8 @@ export function useRegistry() {
     addDeadline,
     resolveDeadline,
     removeDeadline,
+    createReservedSlots,
+    loadAuditHistory,
     refresh,
   };
 }

src/modules/registratura/index.ts

@@ -4,6 +4,7 @@ export type {
   RegistryEntry,
   RegistryDirection,
   RegistryStatus,
+  RegistrationType,
   ClosureInfo,
   DocumentType,
   DeadlineDayType,
@@ -12,5 +13,12 @@ export type {
   DeadlineTypeDef,
   TrackedDeadline,
   DeadlineAuditEntry,
+  RegistryAuditAction,
+  RegistryAuditEvent,
+} from "./types";
+export {
+  DEFAULT_DOCUMENT_TYPES,
+  DEFAULT_DOC_TYPE_LABELS,
+  DIRECTION_TYPE_CODE,
+  REGISTRY_COMPANY_PREFIX,
 } from "./types";
-export { DEFAULT_DOCUMENT_TYPES, DEFAULT_DOC_TYPE_LABELS } from "./types";

src/modules/registratura/services/audit-service.ts

@@ -0,0 +1,126 @@
+/**
+ * Append-only audit trail for Registratura entries.
+ * Server-side only — uses Prisma directly.
+ */
+
+import { prisma } from "@/core/storage/prisma";
+import { Prisma } from "@prisma/client";
+import type { RegistryAuditAction, RegistryAuditEvent } from "../types";
+
+/** Log a single audit event (append-only, never updated or deleted) */
+export async function logAuditEvent(params: {
+  entryId: string;
+  entryNumber: string;
+  action: RegistryAuditAction;
+  actor: string;
+  actorName?: string;
+  company: string;
+  detail?: Record<string, unknown>;
+}): Promise<void> {
+  await prisma.registryAudit.create({
+    data: {
+      entryId: params.entryId,
+      entryNumber: params.entryNumber,
+      action: params.action,
+      actor: params.actor,
+      actorName: params.actorName ?? null,
+      company: params.company,
+      detail: (params.detail as Prisma.InputJsonValue) ?? Prisma.JsonNull,
+    },
+  });
+}
+
+/** Get chronological audit history for a single entry */
+export async function getAuditHistory(
+  entryId: string,
+): Promise<RegistryAuditEvent[]> {
+  const rows = await prisma.registryAudit.findMany({
+    where: { entryId },
+    orderBy: { createdAt: "asc" },
+  });
+  return rows.map(mapRow);
+}
+
+/** Get audit events for a company, optionally filtered by date range */
+export async function getAuditByCompany(
+  company: string,
+  options?: { from?: string; to?: string; limit?: number },
+): Promise<RegistryAuditEvent[]> {
+  const where: Prisma.RegistryAuditWhereInput = { company };
+
+  if (options?.from || options?.to) {
+    const createdAt: Prisma.DateTimeFilter = {};
+    if (options.from) createdAt.gte = new Date(options.from);
+    if (options.to) createdAt.lte = new Date(options.to);
+    where.createdAt = createdAt;
+  }
+
+  const rows = await prisma.registryAudit.findMany({
+    where,
+    orderBy: { createdAt: "desc" },
+    take: options?.limit ?? 100,
+  });
+  return rows.map(mapRow);
+}
+
+/** Compute diff between old and new entry for "updated" audit events */
+export function computeEntryDiff(
+  oldEntry: Record<string, unknown>,
+  newEntry: Record<string, unknown>,
+  fieldsToTrack: string[],
+): Record<string, { old: unknown; new: unknown }> | null {
+  const changes: Record<string, { old: unknown; new: unknown }> = {};
+
+  for (const field of fieldsToTrack) {
+    const oldVal = oldEntry[field];
+    const newVal = newEntry[field];
+    if (JSON.stringify(oldVal) !== JSON.stringify(newVal)) {
+      changes[field] = { old: oldVal, new: newVal };
+    }
+  }
+
+  return Object.keys(changes).length > 0 ? changes : null;
+}
+
+// ── Internal helpers ──
+
+function mapRow(r: {
+  id: string;
+  entryId: string;
+  entryNumber: string;
+  action: string;
+  actor: string;
+  actorName: string | null;
+  company: string;
+  detail: Prisma.JsonValue;
+  createdAt: Date;
+}): RegistryAuditEvent {
+  return {
+    id: r.id,
+    entryId: r.entryId,
+    entryNumber: r.entryNumber,
+    action: r.action as RegistryAuditAction,
+    actor: r.actor,
+    actorName: r.actorName ?? undefined,
+    company: r.company,
+    detail: (r.detail as Record<string, unknown>) ?? undefined,
+    createdAt: r.createdAt.toISOString(),
+  };
+}
+
+/** Fields tracked for update diffs */
+export const TRACKED_FIELDS = [
+  "subject",
+  "sender",
+  "recipient",
+  "direction",
+  "documentType",
+  "status",
+  "company",
+  "deadline",
+  "assignee",
+  "date",
+  "notes",
+  "tags",
+  "expiryDate",
+];

src/modules/registratura/services/registry-service.ts

@@ -1,5 +1,6 @@
 import type { CompanyId } from "@/core/auth/types";
-import type { RegistryEntry, RegistryAttachment } from "../types";
+import type { RegistryEntry, RegistryAttachment, RegistryDirection } from "../types";
+import { REGISTRY_COMPANY_PREFIX, DIRECTION_TYPE_CODE } from "../types";
 
 const STORAGE_PREFIX = "entry:";
 
@@ -173,6 +174,8 @@ export async function deleteEntry(
   await blobStorage.delete(id).catch(() => {});
 }
 
+// ── Old-format numbering (deprecated — kept for backward compatibility) ──
+
 const COMPANY_PREFIXES: Record<CompanyId, string> = {
   beletage: "B",
   "urban-switch": "US",
@@ -181,9 +184,8 @@ const COMPANY_PREFIXES: Record<CompanyId, string> = {
 };
 
 /**
- * Generate company-specific registry number: B-0001/2026
- * Uses the highest existing number + 1 for that company in that year.
- * Parses actual numbers from entries to prevent duplicates.
+ * @deprecated Use allocateSequenceNumber() via the API instead.
+ * Client-side numbering — race-condition prone, kept only for fallback.
  */
 export function generateRegistryNumber(
   company: CompanyId,
@@ -194,8 +196,6 @@ export function generateRegistryNumber(
   const year = now.getFullYear();
   const prefix = COMPANY_PREFIXES[company];
 
-  // Parse the numeric part from existing numbers for this company+year
-  // Pattern: PREFIX-NNNN/YYYY
   const regex = new RegExp(`^${prefix}-(\\d+)/${year}$`);
   let maxNum = 0;
 
@@ -212,6 +212,91 @@ export function generateRegistryNumber(
   return `${prefix}-${padded}/${year}`;
 }
 
+// ── New-format numbering (server-side, atomic) ──
+
+/**
+ * Allocate the next sequence number atomically via PostgreSQL.
+ * Format: BTG-2026-IN-00001
+ *
+ * Uses INSERT ... ON CONFLICT ... UPDATE RETURNING for race-condition safety.
+ * Must be called from server-side only (API routes).
+ */
+export async function allocateSequenceNumber(
+  company: CompanyId,
+  direction: RegistryDirection,
+  year?: number,
+): Promise<{ number: string; sequence: number }> {
+  // Dynamic import — prisma is only available server-side
+  const { prisma } = await import("@/core/storage/prisma");
+
+  const companyPrefix = REGISTRY_COMPANY_PREFIX[company];
+  const typeCode = DIRECTION_TYPE_CODE[direction];
+  const yr = year ?? new Date().getFullYear();
+
+  const result = await prisma.$queryRaw<Array<{ lastSeq: number }>>`
+    INSERT INTO "RegistrySequence" (id, company, year, type, "lastSeq", "createdAt", "updatedAt")
+    VALUES (gen_random_uuid()::text, ${companyPrefix}, ${yr}, ${typeCode}, 1, NOW(), NOW())
+    ON CONFLICT (company, year, type)
+    DO UPDATE SET "lastSeq" = "RegistrySequence"."lastSeq" + 1, "updatedAt" = NOW()
+    RETURNING "lastSeq"
+  `;
+
+  const row = result[0];
+  if (!row) throw new Error("Failed to allocate sequence number");
+  const seq = row.lastSeq;
+  const padded = String(seq).padStart(5, "0");
+
+  return {
+    number: `${companyPrefix}-${yr}-${typeCode}-${padded}`,
+    sequence: seq,
+  };
+}
+
+// ── Number format detection + parsing ──
+
+export interface ParsedRegistryNumber {
+  company: string;
+  year: number;
+  type?: string;
+  sequence: number;
+  format: "old" | "new";
+}
+
+/** Detect whether a number uses the new format (BTG-2026-IN-00125) */
+export function isNewFormat(num: string): boolean {
+  return /^(BTG|SDT|USW|GRP)-\d{4}-(IN|OUT|INT)-\d{5}$/.test(num);
+}
+
+/** Parse a registry number in either old or new format */
+export function parseRegistryNumber(num: string): ParsedRegistryNumber | null {
+  // New format: BTG-2026-IN-00125
+  const newMatch = num.match(
+    /^(BTG|SDT|USW|GRP)-(\d{4})-(IN|OUT|INT)-(\d{5})$/,
+  );
+  if (newMatch) {
+    return {
+      company: newMatch[1]!,
+      year: parseInt(newMatch[2]!, 10),
+      type: newMatch[3]!,
+      sequence: parseInt(newMatch[4]!, 10),
+      format: "new",
+    };
+  }
+
+  // Old format: B-0001/2026
+  const oldMatch = num.match(/^(B|US|SDT|G)-(\d+)\/(\d{4})$/);
+  if (oldMatch) {
+    return {
+      company: oldMatch[1]!,
+      year: parseInt(oldMatch[3]!, 10),
+      sequence: parseInt(oldMatch[2]!, 10),
+      format: "old",
+    };
+  }
+
+  return null;
+}
+
 /** Calculate days overdue (negative = days remaining, positive = overdue) */
 export function getOverdueDays(deadline: string | undefined): number | null {
   if (!deadline) return null;

src/modules/registratura/services/reserved-slots-service.ts

@@ -0,0 +1,145 @@
+/**
+ * Reserved registration slots for late registrations.
+ *
+ * Each month gets 2 reserved slots per company:
+ *   - mid-month (~15th, snapped to nearest previous working day)
+ *   - end-of-month (~last day, snapped to nearest previous working day)
+ *
+ * Slots use the IN sequence by default. When a late IN document arrives,
+ * it claims the slot's number. OUT/INT docs get new typed numbers instead.
+ */
+
+import { v4 as uuid } from "uuid";
+import { isWorkingDay } from "./working-days";
+import { allocateSequenceNumber } from "./registry-service";
+import type { CompanyId } from "@/core/auth/types";
+import type { RegistryEntry } from "../types";
+
+/** Snap a date to the nearest previous working day (Mon–Fri, not a holiday) */
+function nearestPreviousWorkingDay(date: Date): Date {
+  const d = new Date(date);
+  while (!isWorkingDay(d)) {
+    d.setDate(d.getDate() - 1);
+  }
+  return d;
+}
+
+/** Get the last calendar day of a month */
+function lastDayOfMonth(year: number, month: number): Date {
+  return new Date(year, month + 1, 0); // month is 0-indexed
+}
+
+/** Compute the two reservation target dates for a given month */
+export function getReservationDates(
+  year: number,
+  month: number,
+): [Date, Date] {
+  const mid = nearestPreviousWorkingDay(new Date(year, month, 15));
+  const end = nearestPreviousWorkingDay(lastDayOfMonth(year, month));
+
+  // Edge case: if both land on the same day, shift mid one working day earlier
+  if (mid.getTime() === end.getTime()) {
+    mid.setDate(mid.getDate() - 1);
+    while (!isWorkingDay(mid)) {
+      mid.setDate(mid.getDate() - 1);
+    }
+  }
+
+  return [mid, end];
+}
+
+/** Format a Date as YYYY-MM-DD */
+function toDateStr(d: Date): string {
+  return d.toISOString().slice(0, 10);
+}
+
+/**
+ * Generate 2 reserved slot entries for a given company + month.
+ * Allocates real IN sequence numbers so they occupy positions in the registry.
+ */
+export async function generateReservedSlots(
+  company: CompanyId,
+  year: number,
+  month: number,
+  actorId: string,
+  actorName: string,
+): Promise<RegistryEntry[]> {
+  const [midDate, endDate] = getReservationDates(year, month);
+  const now = new Date().toISOString();
+  const slots: RegistryEntry[] = [];
+
+  for (const targetDate of [midDate, endDate]) {
+    const { number } = await allocateSequenceNumber(
+      company,
+      "intrat",
+      year,
+    );
+    const dateStr = toDateStr(targetDate);
+
+    const entry: RegistryEntry = {
+      id: uuid(),
+      number,
+      date: dateStr,
+      registrationDate: dateStr,
+      direction: "intrat",
+      documentType: "altele",
+      subject: `[Slot rezervat] ${dateStr}`,
+      sender: "",
+      recipient: "",
+      company,
+      status: "reserved",
+      linkedEntryIds: [],
+      attachments: [],
+      tags: [],
+      notes: "",
+      visibility: "internal",
+      isReserved: true,
+      registrationType: "normal",
+      createdBy: actorId,
+      createdByName: actorName,
+      createdAt: now,
+      updatedAt: now,
+    };
+    slots.push(entry);
+  }
+
+  return slots;
+}
+
+/**
+ * Find an unclaimed reserved slot for a given company + month.
+ * Returns the first available slot, or null if none available.
+ */
+export function findAvailableReservedSlot(
+  entries: RegistryEntry[],
+  company: CompanyId,
+  targetYear: number,
+  targetMonth: number,
+): RegistryEntry | null {
+  for (const e of entries) {
+    if (!e.isReserved || e.status !== "reserved") continue;
+    if (e.company !== company) continue;
+    const d = new Date(e.date);
+    if (d.getFullYear() === targetYear && d.getMonth() === targetMonth) {
+      return e;
+    }
+  }
+  return null;
+}
+
+/**
+ * Check if reserved slots already exist for a given company + month.
+ */
+export function countReservedSlots(
+  entries: RegistryEntry[],
+  company: CompanyId,
+  year: number,
+  month: number,
+): number {
+  return entries.filter((e) => {
+    if (!e.isReserved) return false;
+    if (e.company !== company) return false;
+    const d = new Date(e.date);
+    return d.getFullYear() === year && d.getMonth() === month;
+  }).length;
+}

src/modules/registratura/types.ts

@@ -1,8 +1,26 @@
 import type { Visibility } from "@/core/module-registry/types";
 import type { CompanyId } from "@/core/auth/types";
 
-/** Document direction — simplified from the old 3-way type */
-export type RegistryDirection = "intrat" | "iesit";
+/** Document direction */
+export type RegistryDirection = "intrat" | "iesit" | "intern";
+
+/** Maps direction to the numbering type code */
+export const DIRECTION_TYPE_CODE: Record<RegistryDirection, string> = {
+  intrat: "IN",
+  iesit: "OUT",
+  intern: "INT",
+};
+
+/** New-format company prefixes for registry numbering */
+export const REGISTRY_COMPANY_PREFIX: Record<CompanyId, string> = {
+  beletage: "BTG",
+  "urban-switch": "USW",
+  "studii-de-teren": "SDT",
+  group: "GRP",
+};
+
+/** Registration type — normal, late, or claimed from reserved slot */
+export type RegistrationType = "normal" | "late" | "reserved-claimed";
 
 /** Default document types — user can add custom types that sync with Tag Manager */
 export const DEFAULT_DOCUMENT_TYPES = [
@@ -37,8 +55,8 @@ export const DEFAULT_DOC_TYPE_LABELS: Record<string, string> = {
   altele: "Altele",
 };
 
-/** Status — simplified to open/closed */
-export type RegistryStatus = "deschis" | "inchis";
+/** Status — open/closed/reserved */
+export type RegistryStatus = "deschis" | "inchis" | "reserved";
 
 /** Closure resolution — why the entry was closed */
 export type ClosureResolution =
@@ -262,4 +280,43 @@ export interface RegistryEntry {
   visibility: Visibility;
   createdAt: string;
   updatedAt: string;
+
+  // ── New fields for numbering/reserved/audit ──
+
+  /** Whether this is a reserved slot (auto-generated placeholder) */
+  isReserved?: boolean;
+  /** Registration type — normal, late, or reserved-claimed */
+  registrationType?: RegistrationType;
+  /** Who created this entry (SSO user ID) */
+  createdBy?: string;
+  /** Who created this entry (display name) */
+  createdByName?: string;
+  /** Original reserved slot ID if this entry claimed a reserved slot */
+  claimedReservedSlotId?: string;
+  /** Old-format number if entry was migrated */
+  legacyNumber?: string;
+}
+
+// ── Audit types ──
+
+export type RegistryAuditAction =
+  | "created"
+  | "updated"
+  | "reserved_created"
+  | "reserved_claimed"
+  | "late_registration"
+  | "closed"
+  | "reopened"
+  | "deleted";
+
+export interface RegistryAuditEvent {
+  id: string;
+  entryId: string;
+  entryNumber: string;
+  action: RegistryAuditAction;
+  actor: string;
+  actorName?: string;
+  company: string;
+  detail?: Record<string, unknown>;
+  createdAt: string;
 }