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/components/interests/interest-columns.tsx

@@ -14,6 +14,7 @@ import {
 } from '@/components/ui/dropdown-menu';
 import { Badge } from '@/components/ui/badge';
 import { TagBadge } from '@/components/shared/tag-badge';
+import { stageBadgeClass, stageLabel } from '@/lib/constants';
 
 export interface InterestRow {
   id: string;
@@ -29,28 +30,6 @@ export interface InterestRow {
   tags?: Array<{ id: string; name: string; color: string }>;
 }
 
-const STAGE_LABELS: Record<string, string> = {
-  open: 'Open',
-  details_sent: 'Details Sent',
-  in_communication: 'In Communication',
-  visited: 'Visited',
-  signed_eoi_nda: 'Signed EOI/NDA',
-  deposit_10pct: 'Deposit 10%',
-  contract: 'Contract',
-  completed: 'Completed',
-};
-
-const STAGE_COLORS: Record<string, string> = {
-  open: 'bg-slate-100 text-slate-700',
-  details_sent: 'bg-blue-100 text-blue-700',
-  in_communication: 'bg-sky-100 text-sky-700',
-  visited: 'bg-violet-100 text-violet-700',
-  signed_eoi_nda: 'bg-amber-100 text-amber-700',
-  deposit_10pct: 'bg-orange-100 text-orange-700',
-  contract: 'bg-green-100 text-green-700',
-  completed: 'bg-emerald-100 text-emerald-700',
-};
-
 const CATEGORY_LABELS: Record<string, string> = {
   general_interest: 'General Interest',
   specific_qualified: 'Specific Qualified',
@@ -117,9 +96,9 @@ export function getInterestColumns({
         const stage = getValue() as string;
         return (
           <span
-            className={`inline-flex items-center rounded-full px-2 py-0.5 text-xs font-medium ${STAGE_COLORS[stage] ?? 'bg-gray-100 text-gray-700'}`}
+            className={`inline-flex items-center rounded-full px-2 py-0.5 text-xs font-medium ${stageBadgeClass(stage)}`}
           >
-            {STAGE_LABELS[stage] ?? stage}
+            {stageLabel(stage)}
           </span>
         );
       },
@@ -205,10 +184,7 @@ export function getInterestColumns({
               <Pencil className="mr-2 h-3.5 w-3.5" />
               Edit
             </DropdownMenuItem>
-            <DropdownMenuItem
-              className="text-destructive"
-              onClick={() => onArchive(row.original)}
-            >
+            <DropdownMenuItem className="text-destructive" onClick={() => onArchive(row.original)}>
               <Archive className="mr-2 h-3.5 w-3.5" />
               Archive
             </DropdownMenuItem>