SEV-362: format v0.2.0 — boundary spacing, acronyms, formatRange, numeric budget

- formatLabel: letter→digit boundary spacing ("level2" → "Level 2"),
  acronym casing (DCFC/EV/SUV/VIN/DC/A\C), bare numeric ranges pass
  through untouched
- new formatRange: "150-200" → "150–200 mi", "200-plus"/"200+" →
  "200+ mi"; empty → '' (callers render their own placeholder)
- formatBudget is now the numeric (min, max) dollar formatter matching
  the API payload; the wizard's slug map moves to formatBudgetBucket
- new vehicleName({year, make, model, commissioned})

Breaking rename of formatBudget is safe: no frontend consumes 0.1.0.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/format.js

@@ -1,13 +1,35 @@
-// SEV-329: shared display formatters. These were copy-pasted (and subtly
-// divergent — SEV-310) across public/vendor/admin. Single source of truth here.
+// SEV-329/SEV-362: shared display formatters. These were copy-pasted (and
+// subtly divergent — SEV-310, SEV-362) across public/vendor/admin. Single
+// source of truth here.
+
+// Words rendered as fixed acronyms/casings instead of Title Case.
+const ACRONYMS = {
+  dcfc: 'DCFC',
+  ev: 'EV',
+  suv: 'SUV',
+  vin: 'VIN',
+  dc: 'DC',
+  ac: 'A/C',
+};
 
 /**
- * Friendly label for an internal slug: replaces '-' and '_' with spaces and
- * Title-Cases each word. e.g. "contract_pending" → "Contract Pending".
+ * Friendly label for an internal slug: replaces '-' and '_' with spaces,
+ * inserts a space at letter→digit boundaries ("level2" → "Level 2"), and
+ * Title-Cases each word with acronym fixups ("dcfc" → "DCFC").
+ * Purely-numeric tokens like "100-150" keep their hyphen — use formatRange
+ * for range slugs.
  */
 export function formatLabel(val) {
   if (!val) return '';
-  return String(val).replace(/[-_]/g, ' ').replace(/\b\w/g, (c) => c.toUpperCase());
+  const s = String(val);
+  // A bare numeric range ("100-150", "200+") is data, not a slug — leave it.
+  if (/^\d+(-\d+)?\+?$/.test(s)) return s;
+  return s
+    .replace(/[-_]/g, ' ')
+    .replace(/([a-zA-Z])(\d)/g, '$1 $2')
+    .split(/\s+/)
+    .map((w) => ACRONYMS[w.toLowerCase()] || w.charAt(0).toUpperCase() + w.slice(1))
+    .join(' ');
 }
 
 /** Friendly status label (alias of formatLabel, named for intent at call sites). */
@@ -25,7 +47,33 @@ export function formatTimeline(val) {
   return TIMELINE_LABELS[val] || formatLabel(val);
 }
 
-const BUDGET_LABELS = {
+/**
+ * Friendly range-goal label from the wizard's slug values: "150-200" →
+ * "150–200 mi", "200-plus"/"200+" → "200+ mi", "250" → "250 mi". Returns ''
+ * for empty input — callers decide the placeholder (e.g. "Not specified").
+ */
+export function formatRange(val) {
+  if (!val) return '';
+  const s = String(val).trim().toLowerCase().replace(/\s*(mi|miles)$/, '');
+  if (/^\d+\s*(\+|-?\s*plus)$/.test(s)) return s.replace(/\s*(\+|-?\s*plus)$/, '') + '+ mi';
+  const m = s.match(/^(\d+)\s*-\s*(\d+)$/);
+  if (m) return `${m[1]}–${m[2]} mi`;
+  if (/^\d+$/.test(s)) return `${s} mi`;
+  return formatLabel(val);
+}
+
+/**
+ * Budget label from the API's numeric range (dollars): "$30,000 – $60,000",
+ * "$30,000+" (no max), "Up to $60,000" (no min), "Flexible" (neither).
+ */
+export function formatBudget(min, max) {
+  if (!min && !max) return 'Flexible';
+  if (!max) return '$' + Number(min).toLocaleString() + '+';
+  if (!min) return 'Up to $' + Number(max).toLocaleString();
+  return '$' + Number(min).toLocaleString() + ' – $' + Number(max).toLocaleString();
+}
+
+const BUDGET_BUCKET_LABELS = {
   'under-10k': 'Under $10,000',
   '10k-25k': '$10,000 – $25,000',
   '25k-50k': '$25,000 – $50,000',
@@ -33,7 +81,17 @@ const BUDGET_LABELS = {
   '100k-plus': '$100,000+',
 };
 
-/** Friendly budget-range label for the wizard's slug values. */
-export function formatBudget(val) {
-  return BUDGET_LABELS[val] || val || '';
+/** Friendly budget label for the wizard's slug buckets (pre-submit UI only). */
+export function formatBudgetBucket(val) {
+  return BUDGET_BUCKET_LABELS[val] || val || '';
+}
+
+/**
+ * Display name for a project's vehicle. Commissioned builds have no donor
+ * vehicle; otherwise join the parts that exist, falling back to a generic.
+ */
+export function vehicleName({ year, make, model, commissioned } = {}, fallback = 'Project') {
+  if (commissioned) return 'Commissioned build';
+  const v = [year, make, model].filter(Boolean).join(' ');
+  return v || fallback;
 }