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/app/(portal)/portal/interests/page.tsx

@@ -5,28 +5,19 @@ import type { Metadata } from 'next';
 import { getPortalSession } from '@/lib/portal/auth';
 import { getClientInterests } from '@/lib/services/portal.service';
 import { Badge } from '@/components/ui/badge';
+import { stageLabel, safeStage, type PipelineStage } from '@/lib/constants';
 
 export const metadata: Metadata = { title: 'Interests' };
 
-const STAGE_LABELS: Record<string, string> = {
-  open: 'Open',
-  details_sent: 'Details Sent',
-  in_communication: 'In Communication',
-  visited: 'Visited',
-  signed_eoi_nda: 'EOI / NDA Signed',
-  deposit_10pct: 'Deposit Received',
-  contract: 'Contract Stage',
-  completed: 'Completed',
-};
-
-const STAGE_COLORS: Record<string, 'default' | 'secondary' | 'destructive' | 'outline'> = {
+const STAGE_VARIANT: Record<PipelineStage, 'default' | 'secondary' | 'destructive' | 'outline'> = {
   open: 'secondary',
   details_sent: 'secondary',
   in_communication: 'default',
-  visited: 'default',
-  signed_eoi_nda: 'default',
+  eoi_sent: 'default',
+  eoi_signed: 'default',
   deposit_10pct: 'default',
-  contract: 'default',
+  contract_sent: 'default',
+  contract_signed: 'default',
   completed: 'outline',
 };
 
@@ -40,9 +31,7 @@ export default async function PortalInterestsPage() {
     <div className="space-y-6">
       <div>
         <h1 className="text-2xl font-semibold text-gray-900">Berth Interests</h1>
-        <p className="text-sm text-gray-500 mt-1">
-          Your berth enquiries and applications
-        </p>
+        <p className="text-sm text-gray-500 mt-1">Your berth enquiries and applications</p>
       </div>
 
       {interests.length === 0 ? (
@@ -56,10 +45,7 @@ export default async function PortalInterestsPage() {
       ) : (
         <div className="space-y-3">
           {interests.map((interest) => (
-            <div
-              key={interest.id}
-              className="bg-white rounded-lg border p-5"
-            >
+            <div key={interest.id} className="bg-white rounded-lg border p-5">
               <div className="flex items-start justify-between gap-4">
                 <div className="flex-1 min-w-0">
                   <div className="flex items-center gap-2 mb-1">
@@ -98,8 +84,8 @@ export default async function PortalInterestsPage() {
                     )}
                   </div>
                 </div>
-                <Badge variant={STAGE_COLORS[interest.pipelineStage] ?? 'default'}>
-                  {STAGE_LABELS[interest.pipelineStage] ?? interest.pipelineStage}
+                <Badge variant={STAGE_VARIANT[safeStage(interest.pipelineStage)]}>
+                  {stageLabel(interest.pipelineStage)}
                 </Badge>
               </div>
             </div>