fix(legacy-stage): purge 9-stage enum keys from rank tables and stale copy

L-001 hunt landed these:

  - src/lib/services/clients.service.ts — stageRank used pre-refactor
    9-stage names exclusively (`contract_signed`, `deposit_10pct`, …).
    Every modern 7-stage interest fell to rank 0, making client-list
    "most-progressed deal" sort effectively random. Modern values now
    own the canonical ranks; legacy aliases map to their 7-stage
    equivalents so historical audit data still sorts.

  - src/lib/services/berth-recommender.service.ts — STAGE_ORDER had
    the same 9-stage shape. LATE_STAGE_THRESHOLD pointed at the (now
    nonexistent) `deposit_10pct` slot. Reworked to the 7-stage scale;
    threshold now at `deposit_paid` (5).

  - Stale comments referencing `deposit_10pct` in schema (clients,
    financial) and client-archive services updated to current copy.

  - Smart-archive dialog rendered `i.pipelineStage` as raw enum; now
    routes through `stageLabelFor` (the new helper added with A2).

Test fixture updates: berth-recommender.test.ts numeric inputs
re-mapped to the new 7-stage scale (eoi_signed=5 → eoi=3, etc.).
1373/1373 vitest pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/lib/services/berth-recommender.service.ts

@@ -184,20 +184,32 @@ export async function loadRecommenderSettings(portId: string): Promise<Recommend
 
 // ─── Tier mapping ──────────────────────────────────────────────────────────
 
+// L-001: modern 7-stage ranks own the canonical positions; legacy 9-stage
+// keys map to their post-refactor equivalents so historical interests in
+// the recommender stage-aware queries continue to rank correctly.
 const STAGE_ORDER: Record<string, number> = {
+  // modern
+  enquiry: 1,
+  qualified: 2,
+  nurturing: 2,
+  eoi: 3,
+  reservation: 4,
+  deposit_paid: 5,
+  contract: 6,
+  // legacy aliases
   open: 1,
-  details_sent: 2,
-  in_communication: 3,
-  eoi_sent: 4,
-  eoi_signed: 5,
-  deposit_10pct: 6,
-  contract_sent: 7,
-  contract_signed: 8,
-  completed: 9,
+  details_sent: 1,
+  in_communication: 2,
+  eoi_sent: 3,
+  eoi_signed: 3,
+  deposit_10pct: 5,
+  contract_sent: 6,
+  contract_signed: 6,
+  completed: 6,
 };
 
 /** Stage at which a berth is "in late stage" (Tier D when active). */
-const LATE_STAGE_THRESHOLD = STAGE_ORDER.deposit_10pct!; // 6
+const LATE_STAGE_THRESHOLD = STAGE_ORDER.deposit_paid!; // 5
 
 export type Tier = 'A' | 'B' | 'C' | 'D';