feat: deadline pause/resume on clarifications + enhanced timeline UX

- TrackedDeadline gains pausedAt + totalPausedDays fields
- pauseDeadline() / resumeDeadline() in deadline-service with audit log
- Auto-pause: when incoming conex linked to parent with active deadlines
- Auto-resume: when outgoing conex linked to parent with paused deadlines
  (shifts dueDate forward by paused days)
- Timeline shows "Suspendat" state with blue pulsing progress bar
- Milestone tooltips now show exact dates (hover: "Data maximă: ...")
- ISC warning text on expired emission deadlines
- Verification expired text matches PDF spec
- DeadlineAuditEntry gains "paused" | "resumed" action types
- getDeadlineDisplayStatus returns "Suspendat" (blue) for paused deadlines

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

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

@@ -75,6 +75,70 @@ export function resolveDeadline(
   };
 }
 
+/**
+ * Pause a deadline (e.g., when a clarification request is linked).
+ * Records the pause date and adds audit entry.
+ */
+export function pauseDeadline(deadline: TrackedDeadline): TrackedDeadline {
+  if (deadline.pausedAt) return deadline; // already paused
+  const now = new Date().toISOString();
+  return {
+    ...deadline,
+    pausedAt: now,
+    auditLog: [
+      ...(deadline.auditLog ?? []),
+      {
+        action: "paused" as DeadlineAuditEntry["action"],
+        timestamp: now,
+        detail: "Termen suspendat — solicitare clarificări primită",
+      },
+    ],
+  };
+}
+
+/**
+ * Resume a paused deadline (e.g., when completions are submitted).
+ * Adds the paused days to totalPausedDays and shifts dueDate forward.
+ */
+export function resumeDeadline(
+  deadline: TrackedDeadline,
+  resumeDate?: string,
+): TrackedDeadline {
+  if (!deadline.pausedAt) return deadline; // not paused
+  const now = resumeDate ? new Date(resumeDate) : new Date();
+  now.setHours(0, 0, 0, 0);
+  const pausedStart = new Date(deadline.pausedAt);
+  pausedStart.setHours(0, 0, 0, 0);
+  const pausedDays = Math.max(
+    0,
+    Math.round((now.getTime() - pausedStart.getTime()) / (1000 * 60 * 60 * 24)),
+  );
+
+  // Shift due date forward by the number of paused days
+  const oldDue = new Date(deadline.dueDate);
+  oldDue.setHours(0, 0, 0, 0);
+  oldDue.setDate(oldDue.getDate() + pausedDays);
+  const newDueDate = formatDate(oldDue);
+
+  const totalPaused = (deadline.totalPausedDays ?? 0) + pausedDays;
+  const ts = new Date().toISOString();
+
+  return {
+    ...deadline,
+    pausedAt: undefined,
+    totalPausedDays: totalPaused,
+    dueDate: newDueDate,
+    auditLog: [
+      ...(deadline.auditLog ?? []),
+      {
+        action: "resumed" as DeadlineAuditEntry["action"],
+        timestamp: ts,
+        detail: `Termen reluat — ${pausedDays} zile suspendate, nou termen: ${newDueDate}`,
+      },
+    ],
+  };
+}
+
 /**
  * Get the display status for a tracked deadline — color coding + label.
  */
@@ -83,6 +147,11 @@ export function getDeadlineDisplayStatus(
 ): DeadlineDisplayStatus {
   const def = getDeadlineType(deadline.typeId);
 
+  // Paused — waiting for completions
+  if (deadline.pausedAt && deadline.resolution === "pending") {
+    return { label: "Suspendat", variant: "blue", daysRemaining: null };
+  }
+
   // Already resolved
   if (deadline.resolution !== "pending") {
     if (deadline.resolution === "aprobat-tacit") {