refactor(cases): צמצום תפריט-סטטוס 17→10 + מקור-אמת יחיד (UI-B1/G2)

תפריט הסטטוס-הידני הכיל 17 סטטוסים שמתוכם ~9 דקורציה טהורה — שלבי-ביניים
שאף קוד בפייפליין לא קבע ושום לוגיקה לא הסתעפה לפיהם, עם רשימות כפולות
לא-עקביות ב-6+ קבצים (UI-B1) ו-exported כסטטוס-רפאים (באג agent-audit).

הליבה (10): new, processing, documents_ready, outcome_set, direction_approved,
qa_review, drafted, exported, reviewed, final.

- SSoT חדש web-ui/src/lib/api/case-status.ts (רשימה/שלבים/תוויות/statusLabel);
  כל הצרכנים (badge/changer/timeline/guide/donut/kpi/compose) מייבאים משם.
- statusLabel() מבטיח תווית עברית תמיד — גם לערך-מורשת (נפילה עברית, לא סלאג).
- בקאנד: STATUS_ORDER 10, models.CaseStatus מיושר, set_outcome קובע
  outcome_set/direction_approved (במקום in_progress) כמו endpoint ה-web.
- exported מוקשח אחרי export-DOCX מוצלח (forward-only); widget "נכשל ב-QA"
  עודכן ל-qa_review (הסטטוס שנקבע בפועל בכשל-QA).
- scripts/backfill_case_status_trim.py: מיפוי שורות-מורשת לסטטוס-הליבה הקודם.

Invariants: UI-B1 (מקור-אמת יחיד) ✅ · G2 (אין מסלול מקביל) ✅ · GAP-42 (חלקי).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web-ui/src/lib/api/case-status.ts

@@ -0,0 +1,103 @@
+/**
+ * Single source of truth for the case-status lifecycle (UI-B1 / G2).
+ *
+ * The 17-status manual menu was trimmed to the **10 core statuses** that the
+ * pipeline actually sets or that gate real logic. Decorative mid-stage markers
+ * (uploading, analyst_verified, research_complete, brainstorming,
+ * analysis_enriched, ready_for_writing, drafting) plus the legacy/dead
+ * `in_progress` and `qa_failed` were removed — no pipeline code ever set them.
+ *
+ * Every status consumer (badge, changer, timeline, guide, donut, KPI cards,
+ * compose chip) imports the list / labels / phases from here instead of
+ * re-declaring its own array. Keep this file in sync with the backend
+ * STATUS_ORDER in `mcp-server/src/legal_mcp/tools/cases.py`.
+ */
+
+/** Ordered lifecycle — also the order shown in the manual status dropdown. */
+export const CASE_STATUSES = [
+  "new",
+  "processing",
+  "documents_ready",
+  "outcome_set",
+  "direction_approved",
+  "qa_review",
+  "drafted",
+  "exported",
+  "reviewed",
+  "final",
+] as const;
+
+export type CaseStatus = (typeof CASE_STATUSES)[number];
+
+export type PhaseKey = "intake" | "prep" | "thinking" | "writing" | "done";
+
+/** The 5 visual phases the lifecycle collapses into across the app. */
+export const PHASES: { key: PhaseKey; label: string; statuses: CaseStatus[] }[] = [
+  { key: "intake",   label: "קליטה ועיבוד", statuses: ["new", "processing"] },
+  { key: "prep",     label: "הכנת תיק",      statuses: ["documents_ready"] },
+  { key: "thinking", label: "ניתוח וכיוון",  statuses: ["outcome_set", "direction_approved"] },
+  { key: "writing",  label: "כתיבת טיוטה",   statuses: ["qa_review", "drafted"] },
+  { key: "done",     label: "סגירה",         statuses: ["exported", "reviewed", "final"] },
+];
+
+/** Which phase a status belongs to (undefined for unknown/legacy values). */
+export function phaseOf(status?: CaseStatus | string): PhaseKey | undefined {
+  if (!status) return undefined;
+  return PHASES.find((p) => (p.statuses as string[]).includes(status))?.key;
+}
+
+export const STATUS_LABELS: Record<CaseStatus, string> = {
+  new:                "חדש",
+  processing:         "בעיבוד",
+  documents_ready:    "מסמכים מוכנים",
+  outcome_set:        "תוצאה נקבעה",
+  direction_approved: "כיוון אושר",
+  qa_review:          "בדיקת איכות",
+  drafted:            "טיוטה",
+  exported:           "יוצא",
+  reviewed:           "נבדק",
+  final:              "סופי",
+};
+
+/**
+ * Hebrew labels for the removed/legacy statuses — display-only fallback so a
+ * row that hasn't been migrated yet (or arrives from an old client) never
+ * renders a raw English slug as a label. These are NOT selectable statuses.
+ */
+const LEGACY_STATUS_LABELS: Record<string, string> = {
+  in_progress:       "בעבודה",
+  uploading:         "מעלה",
+  analyst_verified:  "ניתוח אומת",
+  research_complete: "מחקר הושלם",
+  brainstorming:     "סיעור מוחות",
+  analysis_enriched: "ניתוח הועמק",
+  ready_for_writing: "מוכן לכתיבה",
+  drafting:          "בכתיבה",
+  qa_failed:         "בדיקת איכות נכשלה",
+};
+
+/**
+ * Always-Hebrew label for any status string. Use this everywhere a status is
+ * rendered as a label so an unknown/legacy value never leaks an English slug.
+ */
+export function statusLabel(status?: string): string {
+  if (!status) return "";
+  return (
+    STATUS_LABELS[status as CaseStatus] ??
+    LEGACY_STATUS_LABELS[status] ??
+    "לא ידוע"
+  );
+}
+
+export const STATUS_DESCRIPTIONS: Record<CaseStatus, string> = {
+  new:                "התיק נוצר וממתין להעלאת מסמכים",
+  processing:         "המערכת מעבדת ומנתחת את המסמכים",
+  documents_ready:    "כל המסמכים עובדו ומוכנים לעבודה",
+  outcome_set:        "נקבעה תוצאה צפויה לערר",
+  direction_approved: "כיוון ההחלטה אושר — בהעמקת ניתוח וכתיבה",
+  qa_review:          "הטיוטה בבדיקת איכות אוטומטית",
+  drafted:            "טיוטה מוכנה לעיון",
+  exported:           "ההחלטה יוצאה לקובץ DOCX",
+  reviewed:           'ההחלטה נבדקה ע"י היו"ר',
+  final:              "החלטה סופית — מוכנה להגשה",
+};

web-ui/src/lib/api/cases.ts

@@ -13,26 +13,11 @@ import { apiRequest } from "./client";
 import type { CaseCreateInput, CaseUpdateInput } from "@/lib/schemas/case";
 import type { PracticeArea, AppealSubtype } from "@/lib/practice-area";
 
-export type CaseStatus =
-  | "new"
-  | "in_progress"
-  | "uploading"
-  | "processing"
-  | "documents_ready"
-  | "analyst_verified"
-  | "research_complete"
-  | "outcome_set"
-  | "brainstorming"
-  | "direction_approved"
-  | "analysis_enriched"
-  | "ready_for_writing"
-  | "drafting"
-  | "qa_review"
-  | "qa_failed"
-  | "drafted"
-  | "exported"
-  | "reviewed"
-  | "final";
+/* CaseStatus + the status list/labels/phases are defined once in ./case-status
+ * (single source of truth, UI-B1). Re-exported here so existing
+ * `import { CaseStatus } from "@/lib/api/cases"` sites keep working. */
+export type { CaseStatus } from "./case-status";
+import type { CaseStatus } from "./case-status";
 
 export type Case = {
   case_number: string;