refactor(sales): consolidate pipeline stages + wire EOI auto-advance

The 8→9 stage refresh from earlier today only updated constants.ts and the DB —
20 component/service files still hardcoded the old enum, leaving labels blank,
filter dropdowns wrong, kanban columns mismatched, and the analytics funnel
silently dropping new-stage rows. The platform also never advanced
pipelineStage on EOI lifecycle events: documents.service.ts wrote eoiStatus
but left the user-visible stage stuck.

This commit closes both gaps:

  1. Single source of truth in src/lib/constants.ts — adds STAGE_LABELS,
     STAGE_BADGE, STAGE_DOT, STAGE_WEIGHTS, STAGE_TRANSITIONS plus
     stageLabel / stageBadgeClass / stageDotClass / safeStage /
     canTransitionStage helpers. components/clients/pipeline-constants.ts
     becomes a re-export shim so existing imports keep working.

  2. 18 stale-enum surfaces migrated — interest list (table, card, filters,
     form, stage picker), pipeline board, client card, berth interests tab,
     portal client interests page, dashboard pipeline / funnel / revenue-
     forecast charts, settings pipeline_weights default, dashboard.service
     weights, analytics.service funnel stages, alert-rules stale-interest
     filter, interest-scoring stage rank.

  3. Documents tab wired into interest detail — replaced the placeholder in
     interest-tabs.tsx with InterestDocumentsTab + InterestFilesTab so the
     EOI launcher is back where salespeople work.

  4. Auto-advance — new advanceStageIfBehind() in interests.service.ts
     (forward-only, no-op if interest is already past the target). Called
     from documents.service.ts on send (→ eoi_sent), Documenso completed
     webhook (→ eoi_signed), and manual signed-EOI upload (→ eoi_signed).

  5. Transition guard — canTransitionStage() blocks egregious skips
     (e.g. completed → open, open → contract_signed). Enforced in
     changeInterestStage before the DB write.

Tests updated to reflect the 9-stage model. tsc clean, vitest 832/832,
ESLint clean on every file touched.

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

src/lib/services/dashboard.service.ts

@@ -5,20 +5,9 @@ import { clients } from '@/lib/db/schema/clients';
 import { interests } from '@/lib/db/schema/interests';
 import { berths } from '@/lib/db/schema/berths';
 import { systemSettings, auditLogs } from '@/lib/db/schema/system';
-import { PIPELINE_STAGES } from '@/lib/constants';
+import { PIPELINE_STAGES, STAGE_WEIGHTS } from '@/lib/constants';
 
-// ─── Default pipeline weights ────────────────────────────────────────────────
-
-const DEFAULT_PIPELINE_WEIGHTS: Record<string, number> = {
-  open: 0.05,
-  details_sent: 0.10,
-  in_communication: 0.20,
-  visited: 0.35,
-  signed_eoi_nda: 0.50,
-  deposit_10pct: 0.70,
-  contract: 0.90,
-  completed: 1.00,
-};
+const DEFAULT_PIPELINE_WEIGHTS: Record<string, number> = STAGE_WEIGHTS;
 
 // ─── KPIs ─────────────────────────────────────────────────────────────────────
 
@@ -98,10 +87,7 @@ export async function getRevenueForecast(portId: string) {
   let weightsSource: 'db' | 'default' = 'default';
 
   const settingRow = await db.query.systemSettings.findFirst({
-    where: and(
-      eq(systemSettings.key, 'pipeline_weights'),
-      eq(systemSettings.portId, portId),
-    ),
+    where: and(eq(systemSettings.key, 'pipeline_weights'), eq(systemSettings.portId, portId)),
   });
 
   if (settingRow?.value) {
@@ -155,10 +141,7 @@ export async function getRevenueForecast(portId: string) {
     weightedValue: stageMap[stage]?.weightedValue ?? 0,
   }));
 
-  const totalWeightedValue = stageBreakdown.reduce(
-    (acc, s) => acc + s.weightedValue,
-    0,
-  );
+  const totalWeightedValue = stageBreakdown.reduce((acc, s) => acc + s.weightedValue, 0);
 
   return {
     totalWeightedValue,