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-card.tsx

@@ -17,43 +17,9 @@ import {
   deriveInitials,
 } from '@/components/shared/list-card';
 import { cn } from '@/lib/utils';
+import { stageBadgeClass, stageDotClass, stageLabel as toStageLabel } from '@/lib/constants';
 import type { InterestRow } from './interest-columns';
 
-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',
-};
-
-/** Pill colors (used for the stage badge in the meta row). */
-const STAGE_PILL: 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',
-};
-
-/** Accent-bar colors — saturate progressively so the pipeline depth reads at a glance. */
-const STAGE_ACCENT: Record<string, string> = {
-  open: 'bg-slate-300',
-  details_sent: 'bg-blue-400',
-  in_communication: 'bg-sky-400',
-  visited: 'bg-violet-400',
-  signed_eoi_nda: 'bg-amber-400',
-  deposit_10pct: 'bg-orange-400',
-  contract: 'bg-green-500',
-  completed: 'bg-emerald-500',
-};
-
 const CATEGORY_LABELS: Record<string, string> = {
   general_interest: 'General',
   specific_qualified: 'Qualified',
@@ -75,9 +41,9 @@ interface InterestCardProps {
 }
 
 export function InterestCard({ interest, portSlug, onEdit, onArchive }: InterestCardProps) {
-  const stageLabel = STAGE_LABELS[interest.pipelineStage] ?? interest.pipelineStage;
-  const stagePill = STAGE_PILL[interest.pipelineStage] ?? 'bg-gray-100 text-gray-700';
-  const accentClass = STAGE_ACCENT[interest.pipelineStage] ?? 'bg-slate-300';
+  const stageLabel = toStageLabel(interest.pipelineStage);
+  const stagePill = stageBadgeClass(interest.pipelineStage);
+  const accentClass = stageDotClass(interest.pipelineStage);
   const isHotLead = interest.leadCategory === 'hot_lead';
   const categoryLabel = interest.leadCategory ? CATEGORY_LABELS[interest.leadCategory] : null;
   const sourceLabel = interest.source ? (SOURCE_LABELS[interest.source] ?? interest.source) : null;