feat(insights): plumb stripChartTokens through every AI-prose surface

The v1.4.22 stripper only ran on the InsightAdvisorCard summary,
findings, primaryRecommendation, and the RecommendationCard top-line
rec text. Every other AI-prose surface bypassed it entirely, so the
v1.4.25 W5b regex extension (capitalised Metric + orphan enum
patterns) silently could not help them.

Wire stripChartTokens() through every render path that pipes AI
output to the user:

- DailyBriefing — paragraph, finding.headline, finding.detail
- WeeklyReport — summary, goingWell[], worthWatching[], tips[],
  dataQualityNotes
- TrendAnnotation — annotation sentence
- RecommendationCard — rationale rows (dataWindow, comparedTo,
  deviation) inside the expanded RationaleCard
- InsightsCardPreview — dashboard mini-card rec text
- Coach message-thread — assistant bubble content (streaming +
  persisted). User bubbles stay untouched on purpose: their content
  is user-typed, not AI-emitted.

User bubbles, evidence-block key/value rows (constrained to the
sentinel grammar by the Coach prompt), and the deterministic
server-generated correlation interpretations stay raw — the leak
surface is AI prose, not those structured fields.

src/components/insights/coach-panel/message-thread.tsx

@@ -13,6 +13,7 @@ import {
 
 import { cn } from "@/lib/utils";
 import { useTranslations } from "@/lib/i18n/context";
+import { stripChartTokens } from "@/lib/insights/chart-tokens";
 import { useAuth } from "@/hooks/use-auth";
 import { useCoachPrefs } from "@/hooks/use-coach-prefs";
 
@@ -330,7 +331,17 @@ function ChatBubble({
             inProgress && "animate-pulse motion-reduce:animate-none",
           )}
         >
-          {content || (inProgress ? t("insights.coach.thinking") : "")}
+          {/* v1.4.25 W5b — strip stray Metric/enum leak tokens from
+              the assistant prose before it lands in the bubble. The
+              raw `content` is the streamed Coach reply (or the
+              persisted twin after `done` fires); both paths are AI-
+              authored so they share the same leak surface as the
+              insight prose elsewhere. */}
+          {content
+            ? stripChartTokens(content)
+            : inProgress
+              ? t("insights.coach.thinking")
+              : ""}
         </div>
         {safeError && (
           <p className="text-dracula-orange/90 text-xs">{safeError}</p>

src/components/insights/daily-briefing.tsx

@@ -23,6 +23,7 @@ import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { EmptyState } from "@/components/ui/empty-state";
 import { useTranslations } from "@/lib/i18n/context";
 import { formatRelativeTime } from "@/lib/i18n/relative-time";
+import { stripChartTokens } from "@/lib/insights/chart-tokens";
 import { cn } from "@/lib/utils";
 import type {
   DailyBriefing as DailyBriefingPayload,
@@ -143,11 +144,13 @@ function KeyFindingRow({ finding }: { finding: DailyBriefingKeyFinding }) {
       />
       <div className="min-w-0 flex-1 space-y-1">
         <div className="flex items-start justify-between gap-3">
-          <p className="text-sm leading-snug font-medium">{finding.headline}</p>
+          <p className="text-sm leading-snug font-medium">
+            {stripChartTokens(finding.headline)}
+          </p>
           <DeltaBadge delta={finding.delta} tone={finding.tone} />
         </div>
         <p className="text-muted-foreground text-xs leading-snug">
-          {finding.detail}
+          {stripChartTokens(finding.detail)}
         </p>
       </div>
     </div>
@@ -228,7 +231,7 @@ export function DailyBriefing({
               data-slot="daily-briefing-paragraph"
               className="text-foreground text-sm leading-relaxed"
             >
-              {briefing.paragraph}
+              {stripChartTokens(briefing.paragraph)}
             </p>
             {briefing.keyFindings.length > 0 && (
               <div className="space-y-2">

src/components/insights/insights-card.tsx

@@ -5,6 +5,7 @@ import { Sparkles, ArrowRight } from "lucide-react";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { Button } from "@/components/ui/button";
 import { useTranslations } from "@/lib/i18n/context";
+import { stripChartTokens } from "@/lib/insights/chart-tokens";
 import type { InsightResult } from "@/lib/ai/types";
 import { sortRecommendationsBySeverity } from "./recommendations-grid";
 import { ConfidenceMeter } from "./confidence-meter";
@@ -101,7 +102,9 @@ export function InsightsCardPreview({
                 key={id ?? index}
                 className={`bg-card/40 flex items-start justify-between gap-2 rounded-md border-l-2 px-3 py-2 ${borderClass}`}
               >
-                <p className="text-sm leading-snug">{text}</p>
+                <p className="text-sm leading-snug">
+                  {stripChartTokens(text)}
+                </p>
                 {typeof confidence === "number" && (
                   <span className="shrink-0">
                     <ConfidenceMeter value={confidence} variant="ring" />

src/components/insights/recommendation-card.tsx

@@ -208,15 +208,15 @@ function RationaleCard({
       <div className="space-y-1.5">
         <RationaleRow
           label={t("insights.recommendation.rationaleWindow")}
-          value={rationale.dataWindow}
+          value={stripChartTokens(rationale.dataWindow)}
         />
         <RationaleRow
           label={t("insights.recommendation.rationaleComparedTo")}
-          value={rationale.comparedTo}
+          value={stripChartTokens(rationale.comparedTo)}
         />
         <RationaleRow
           label={t("insights.recommendation.rationaleDeviation")}
-          value={rationale.deviation}
+          value={stripChartTokens(rationale.deviation)}
         />
       </div>
 

src/components/insights/trend-annotation.tsx

@@ -3,6 +3,7 @@
 import { Sparkles } from "lucide-react";
 import { Badge } from "@/components/ui/badge";
 import { useTranslations } from "@/lib/i18n/context";
+import { stripChartTokens } from "@/lib/insights/chart-tokens";
 import { cn } from "@/lib/utils";
 import { CONFIDENCE_BADGE_CLASS } from "./confidence-badge";
 
@@ -73,7 +74,9 @@ export function TrendAnnotation({
         aria-hidden="true"
       />
       <div className="min-w-0 flex-1 space-y-1">
-        <p className="text-foreground text-xs leading-snug">{annotation}</p>
+        <p className="text-foreground text-xs leading-snug">
+          {stripChartTokens(annotation)}
+        </p>
         {confidence ? (
           <Badge
             data-slot="trend-annotation-confidence"

src/components/insights/weekly-report-view.tsx

@@ -16,6 +16,7 @@ import {
 import { Button } from "@/components/ui/button";
 import { useTranslations, useFormatters } from "@/lib/i18n/context";
 import { useInsightsAdvisorQuery } from "@/components/insights/use-insights-advisor";
+import { stripChartTokens } from "@/lib/insights/chart-tokens";
 import { weekISOToRange } from "@/lib/insights/week-iso";
 import type { WeeklyReport } from "@/lib/ai/schema";
 import { useAuth } from "@/hooks/use-auth";
@@ -189,7 +190,9 @@ export function WeeklyReportPresentation({
             title={t("insights.report.sectionSummary")}
             accent="text-dracula-purple"
           >
-            <p className="text-sm leading-relaxed">{report.summary}</p>
+            <p className="text-sm leading-relaxed">
+              {stripChartTokens(report.summary)}
+            </p>
           </Section>
 
           {/* Going well */}
@@ -200,7 +203,7 @@ export function WeeklyReportPresentation({
               accent="text-dracula-green"
               icon={<CheckCircle2 className="h-3.5 w-3.5" aria-hidden="true" />}
             >
-              <BulletList items={report.goingWell} />
+              <BulletList items={report.goingWell.map(stripChartTokens)} />
             </Section>
           )}
 
@@ -212,7 +215,7 @@ export function WeeklyReportPresentation({
               accent="text-dracula-orange"
               icon={<Eye className="h-3.5 w-3.5" aria-hidden="true" />}
             >
-              <BulletList items={report.worthWatching} />
+              <BulletList items={report.worthWatching.map(stripChartTokens)} />
             </Section>
           )}
 
@@ -224,7 +227,7 @@ export function WeeklyReportPresentation({
               accent="text-dracula-cyan"
               icon={<Lightbulb className="h-3.5 w-3.5" aria-hidden="true" />}
             >
-              <BulletList items={report.tips} />
+              <BulletList items={report.tips.map(stripChartTokens)} />
             </Section>
           )}
 
@@ -236,7 +239,7 @@ export function WeeklyReportPresentation({
               accent="text-muted-foreground"
             >
               <p className="text-muted-foreground text-sm leading-relaxed">
-                {report.dataQualityNotes}
+                {stripChartTokens(report.dataQualityNotes)}
               </p>
             </Section>
           )}