vscode

Reviewed-on: #43

.vscode/settings.json

@@ -0,0 +1,4 @@
+{
+    "giteaActions.baseUrl": "https://git.alwisp.com",
+    "giteaActions.discovery.mode": "allAccessible"
+}

client/src/App.jsx

@@ -6,6 +6,8 @@ import ToastProvider from './components/ToastProvider';
 import './styles/mobile.css';
 
 const REPO_URL     = 'https://git.alwisp.com/jason/cpas';
+// TODO [CLEANUP #18]: DevTicker is a dev vanity widget that ships to prod.
+// Either gate with `import.meta.env.DEV` or remove from the footer.
 const PROJECT_START = new Date('2026-03-06T11:33:32-06:00');
 
 function elapsed(from) {
@@ -101,7 +103,9 @@ const tabs = [
   { id: 'violation', label: '+ New Violation' },
 ];
 
-// Responsive utility hook
+// TODO [MAJOR #8]: Move to src/hooks/useMediaQuery.js — this hook is duplicated
+// verbatim in Dashboard.jsx. Also remove `matches` from the useEffect dep array
+// (it changes inside the effect, which can cause a loop on strict-mode mount).
 function useMediaQuery(query) {
   const [matches, setMatches] = useState(false);
   useEffect(() => {
@@ -237,6 +241,8 @@ export default function App() {
 
   return (
     <ToastProvider>
+      {/* TODO [MAJOR #9]: Inline <style> tags re-inject on every render and duplicate
+           the same block from Dashboard.jsx. Move all shared mobile CSS to mobile.css */}
       <style>{mobileStyles}</style>
       <div style={s.app}>
         <nav style={s.nav} className="app-nav">
@@ -248,6 +254,7 @@ export default function App() {
           <div className="nav-tabs">
             {tabs.map(t => (
               <button key={t.id} style={s.tab(tab === t.id)} className="nav-tab" onClick={() => setTab(t.id)}>
+                {/* TODO [MINOR #17]: first .replace('📊 ', '📊 ') replaces string with itself — no-op. Remove it. */}
             {isMobile ? t.label.replace('📊 ', '📊 ').replace('+ New ', '+ ') : t.label}
               </button>
             ))}

client/src/components/AuditLog.jsx

@@ -112,6 +112,9 @@ export default function AuditLog({ onClose }) {
   const [filterAction, setFilterAction] = useState('');
   const LIMIT = 50;
 
+  // TODO [MAJOR #5]: `offset` in useCallback deps causes the callback to be
+  // re-created on each load-more, which triggers the filterType/filterAction
+  // useEffect unexpectedly. Track offset in a useRef instead.
   const load = useCallback((reset = false) => {
     setLoading(true);
     const o = reset ? 0 : offset;
@@ -121,7 +124,8 @@ export default function AuditLog({ onClose }) {
     axios.get('/api/audit', { params })
       .then(r => {
         const data = r.data;
-        // Client-side action filter (cheap enough at this scale)
+        // TODO [MINOR]: client-side action filter means server still fetches LIMIT
+        // rows before filtering — add server-side `action` param to /api/audit.
         const filtered = filterAction ? data.filter(e => e.action === filterAction) : data;
         setEntries(prev => reset ? filtered : [...prev, ...filtered]);
         setHasMore(data.length === LIMIT);

client/src/components/Dashboard.jsx

@@ -29,7 +29,8 @@ function isAtRisk(points) {
   return boundary !== null && (boundary - points) <= AT_RISK_THRESHOLD;
 }
 
-// Media query hook
+// TODO [MAJOR #8]: Same hook is defined in App.jsx — extract to src/hooks/useMediaQuery.js
+// Also: `matches` in the dep array can cause a loop on strict-mode initial mount.
 function useMediaQuery(query) {
   const [matches, setMatches] = useState(false);
   useEffect(() => {
@@ -42,15 +43,24 @@ function useMediaQuery(query) {
   return matches;
 }
 
+// Filter keys
+const FILTER_NONE     = null;
+const FILTER_TOTAL    = 'total';
+const FILTER_ELITE    = 'elite';
+const FILTER_ACTIVE   = 'active';
+const FILTER_AT_RISK  = 'at_risk';
+
 const s = {
   wrap:         { padding: '32px 40px', color: '#f8f9fa' },
   header:       { display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: '24px', flexWrap: 'wrap', gap: '12px' },
   title:        { fontSize: '24px', fontWeight: 700, color: '#f8f9fa' },
   subtitle:     { fontSize: '13px', color: '#b5b5c0', marginTop: '3px' },
   statsRow:     { display: 'flex', gap: '16px', flexWrap: 'wrap', marginBottom: '28px' },
-  statCard:     { flex: '1', minWidth: '140px', background: '#181924', border: '1px solid #303136', borderRadius: '8px', padding: '16px', textAlign: 'center' },
+  statCard:     { flex: '1', minWidth: '140px', background: '#181924', border: '1px solid #303136', borderRadius: '8px', padding: '16px', textAlign: 'center', cursor: 'pointer', transition: 'border-color 0.15s, box-shadow 0.15s' },
+  statCardActive: { boxShadow: '0 0 0 2px #d4af37', border: '1px solid #d4af37' },
   statNum:      { fontSize: '28px', fontWeight: 800, color: '#f8f9fa' },
   statLbl:      { fontSize: '11px', color: '#b5b5c0', marginTop: '4px' },
+  filterBadge:  { fontSize: '10px', color: '#d4af37', marginTop: '4px', fontWeight: 600 },
   search:       { padding: '10px 14px', border: '1px solid #333544', borderRadius: '6px', fontSize: '14px', width: '260px', background: '#050608', color: '#f8f9fa' },
   table:        { width: '100%', borderCollapse: 'collapse', background: '#111217', borderRadius: '8px', overflow: 'hidden', boxShadow: '0 1px 8px rgba(0,0,0,0.6)', border: '1px solid #222' },
   th:           { background: '#000000', color: '#f8f9fa', padding: '10px 14px', textAlign: 'left', fontSize: '12px', fontWeight: 600, textTransform: 'uppercase', letterSpacing: '0.5px' },
@@ -119,6 +129,7 @@ export default function Dashboard() {
   const [selectedId,  setSelectedId]  = useState(null);
   const [showAudit,   setShowAudit]   = useState(false);
   const [loading,     setLoading]     = useState(true);
+  const [activeFilter, setActiveFilter] = useState(FILTER_NONE);
   const isMobile = useMediaQuery('(max-width: 768px)');
 
   const load = useCallback(() => {
@@ -130,28 +141,71 @@ export default function Dashboard() {
 
   useEffect(() => { load(); }, [load]);
 
+  // Apply search + badge filter together
   useEffect(() => {
     const q = search.toLowerCase();
-    setFiltered(employees.filter(e =>
+    let base = employees;
+
+    if (activeFilter === FILTER_ELITE) {
+      base = base.filter(e => e.active_points >= 0 && e.active_points <= 4);
+    } else if (activeFilter === FILTER_ACTIVE) {
+      base = base.filter(e => e.active_points > 0);
+    } else if (activeFilter === FILTER_AT_RISK) {
+      base = base.filter(e => isAtRisk(e.active_points));
+    }
+    // FILTER_TOTAL and FILTER_NONE show all
+
+    if (q) {
+      base = base.filter(e =>
         e.name.toLowerCase().includes(q) ||
         (e.department || '').toLowerCase().includes(q) ||
         (e.supervisor || '').toLowerCase().includes(q)
-    ));
-  }, [search, employees]);
+      );
+    }
+
+    setFiltered(base);
+  }, [search, employees, activeFilter]);
 
   const atRiskCount = employees.filter(e => isAtRisk(e.active_points)).length;
   const activeCount = employees.filter(e => e.active_points > 0).length;
-  const cleanCount  = employees.filter(e => e.active_points === 0).length;
+  // Elite Standing: 0–4 pts (Tier 0-1)
+  const eliteCount  = employees.filter(e => e.active_points >= 0 && e.active_points <= 4).length;
   const maxPoints   = employees.reduce((m, e) => Math.max(m, e.active_points), 0);
 
+  function handleBadgeClick(filterKey) {
+    setActiveFilter(prev => prev === filterKey ? FILTER_NONE : filterKey);
+  }
+
+  function cardStyle(filterKey, extra = {}) {
+    const isActive = activeFilter === filterKey;
+    return {
+      ...s.statCard,
+      ...(isActive ? s.statCardActive : {}),
+      ...extra,
+    };
+  }
+
   return (
     <>
+      {/* TODO [MAJOR #9]: Same mobileStyles block exists in App.jsx. Move to mobile.css */}
       <style>{mobileStyles}</style>
       <div style={s.wrap} className="dashboard-wrap">
         <div style={s.header} className="dashboard-header">
           <div>
             <div style={s.title} className="dashboard-title">Company Dashboard</div>
-            <div style={s.subtitle} className="dashboard-subtitle">Click any employee name to view their full profile</div>
+            <div style={s.subtitle} className="dashboard-subtitle">
+              Click any employee name to view their full profile
+              {activeFilter && activeFilter !== FILTER_NONE && (
+                <span style={{ marginLeft: '10px', color: '#d4af37', fontWeight: 600 }}>
+                  · Filtered: {activeFilter === FILTER_ELITE ? 'Elite Standing (0–4 pts)' : activeFilter === FILTER_ACTIVE ? 'With Active Points' : activeFilter === FILTER_AT_RISK ? 'At Risk' : 'All'}
+                  <button
+                    onClick={() => setActiveFilter(FILTER_NONE)}
+                    style={{ marginLeft: '6px', background: 'none', border: 'none', color: '#9ca0b8', cursor: 'pointer', fontSize: '12px' }}
+                    title="Clear filter"
+                  >✕</button>
+                </span>
+              )}
+            </div>
           </div>
           <div style={s.toolbarRight} className="toolbar-right">
             <input
@@ -167,23 +221,59 @@ export default function Dashboard() {
         </div>
 
         <div style={s.statsRow} className="dashboard-stats">
-          <div style={s.statCard} className="dashboard-stat-card">
+          {/* Total Employees — clicking shows all */}
+          <div
+            style={cardStyle(FILTER_TOTAL)}
+            className="dashboard-stat-card"
+            onClick={() => handleBadgeClick(FILTER_TOTAL)}
+            title="Click to show all employees"
+          >
             <div style={s.statNum} className="stat-num">{employees.length}</div>
             <div style={s.statLbl} className="stat-lbl">Total Employees</div>
+            {activeFilter === FILTER_TOTAL && <div style={s.filterBadge}>▼ Showing All</div>}
           </div>
-          <div style={{ ...s.statCard, borderTop: '3px solid #28a745' }} className="dashboard-stat-card">
-            <div style={{ ...s.statNum, color: '#6ee7b7' }} className="stat-num">{cleanCount}</div>
-            <div style={s.statLbl} className="stat-lbl">Elite Standing (0 pts)</div>
+
+          {/* Elite Standing: 0–4 pts */}
+          <div
+            style={cardStyle(FILTER_ELITE, { borderTop: '3px solid #28a745' })}
+            className="dashboard-stat-card"
+            onClick={() => handleBadgeClick(FILTER_ELITE)}
+            title="Click to filter: Elite Standing (0–4 pts)"
+          >
+            <div style={{ ...s.statNum, color: '#6ee7b7' }} className="stat-num">{eliteCount}</div>
+            <div style={s.statLbl} className="stat-lbl">Elite Standing (0–4 pts)</div>
+            {activeFilter === FILTER_ELITE && <div style={s.filterBadge}>▼ Filtered</div>}
           </div>
-          <div style={{ ...s.statCard, borderTop: '3px solid #d4af37' }} className="dashboard-stat-card">
+
+          {/* With Active Points */}
+          <div
+            style={cardStyle(FILTER_ACTIVE, { borderTop: '3px solid #d4af37' })}
+            className="dashboard-stat-card"
+            onClick={() => handleBadgeClick(FILTER_ACTIVE)}
+            title="Click to filter: employees with active points"
+          >
             <div style={{ ...s.statNum, color: '#ffd666' }} className="stat-num">{activeCount}</div>
             <div style={s.statLbl} className="stat-lbl">With Active Points</div>
+            {activeFilter === FILTER_ACTIVE && <div style={s.filterBadge}>▼ Filtered</div>}
           </div>
-          <div style={{ ...s.statCard, borderTop: '3px solid #ffb020' }} className="dashboard-stat-card">
+
+          {/* At Risk */}
+          <div
+            style={cardStyle(FILTER_AT_RISK, { borderTop: '3px solid #ffb020' })}
+            className="dashboard-stat-card"
+            onClick={() => handleBadgeClick(FILTER_AT_RISK)}
+            title={`Click to filter: at risk (≤${AT_RISK_THRESHOLD} pts to next tier)`}
+          >
             <div style={{ ...s.statNum, color: '#ffdf8a' }} className="stat-num">{atRiskCount}</div>
             <div style={s.statLbl} className="stat-lbl">At Risk (≤{AT_RISK_THRESHOLD} pts to next tier)</div>
+            {activeFilter === FILTER_AT_RISK && <div style={s.filterBadge}>▼ Filtered</div>}
           </div>
-          <div style={{ ...s.statCard, borderTop: '3px solid #c0392b' }} className="dashboard-stat-card">
+
+          {/* Highest Score — display only, no filter */}
+          <div
+            style={{ ...s.statCard, borderTop: '3px solid #c0392b', cursor: 'default' }}
+            className="dashboard-stat-card"
+          >
             <div style={{ ...s.statNum, color: '#ff8a80' }} className="stat-num">{maxPoints}</div>
             <div style={s.statLbl} className="stat-lbl">Highest Active Score</div>
           </div>

client/src/components/EmployeeModal.jsx

@@ -103,13 +103,12 @@ export default function EmployeeModal({ employeeId, onClose }) {
   const load = useCallback(() => {
     setLoading(true);
     Promise.all([
-      axios.get('/api/employees'),
+      axios.get(`/api/employees/${employeeId}`),
       axios.get(`/api/employees/${employeeId}/score`),
       axios.get(`/api/violations/employee/${employeeId}?limit=100`),
     ])
       .then(([empRes, scoreRes, violRes]) => {
-        const emp = empRes.data.find((e) => e.id === employeeId);
-        setEmployee(emp || null);
+        setEmployee(empRes.data || null);
         setScore(scoreRes.data);
         setViolations(violRes.data);
       })

client/src/components/EmployeeNotes.jsx

@@ -1,5 +1,6 @@
 import React, { useState } from 'react';
 import axios from 'axios';
+import { useToast } from './ToastProvider';
 
 const s = {
   wrapper: { marginTop: '20px' },
@@ -53,14 +54,23 @@ export default function EmployeeNotes({ employeeId, initialNotes, onSaved }) {
   const [draft,   setDraft]   = useState(initialNotes || '');
   const [saved,   setSaved]   = useState(initialNotes || '');
   const [saving,  setSaving]  = useState(false);
+  const [saveErr, setSaveErr] = useState('');
+
+  const toast = useToast();
 
   const handleSave = async () => {
     setSaving(true);
+    setSaveErr('');
     try {
       await axios.patch(`/api/employees/${employeeId}/notes`, { notes: draft });
       setSaved(draft);
       setEditing(false);
       if (onSaved) onSaved(draft);
+    } catch (err) {
+      const msg = err.response?.data?.error || err.message || 'Failed to save notes';
+      setSaveErr(msg);
+      toast.error('Notes save failed: ' + msg);
+      // Keep editing open so the user doesn't lose their changes
     } finally {
       setSaving(false);
     }
@@ -130,6 +140,11 @@ export default function EmployeeNotes({ employeeId, initialNotes, onSaved }) {
             placeholder="Free-text notes — one per line or comma-separated. Does not affect CPAS scoring."
             autoFocus
           />
+          {saveErr && (
+            <div style={{ fontSize: '12px', color: '#ff7070', marginBottom: '6px' }}>
+              ✗ {saveErr}
+            </div>
+          )}
           <div style={s.actions}>
             <button style={s.saveBtn} onClick={handleSave} disabled={saving}>
               {saving ? 'Saving…' : 'Save Notes'}

client/src/components/ExpirationTimeline.jsx

@@ -1,8 +1,8 @@
 import React, { useEffect, useState } from 'react';
 import axios from 'axios';
 
-// Tier thresholds used to compute what tier an employee would drop to
-// after a given violation rolls off.
+// TODO [MINOR #10]: This TIER_THRESHOLDS array duplicates tiers defined in CpasBadge.jsx
+// and Dashboard.jsx. Export TIERS from CpasBadge.jsx and import here instead.
 const TIER_THRESHOLDS = [
   { min: 30, label: 'Separation',            color: '#ff1744' },
   { min: 25, label: 'Final Decision',        color: '#ff6d00' },

client/src/components/NegateModal.jsx

@@ -78,14 +78,12 @@ export default function NegateModal({ violation, onConfirm, onCancel }) {
     });
   };
 
-  // FIX: overlay click only closes on backdrop, NOT modal children
   const handleOverlayClick = (e) => {
     if (e.target === e.currentTarget && onCancel) onCancel();
   };
 
   return (
     <div style={s.overlay} onClick={handleOverlayClick}>
-      {/* FIX: stopPropagation prevents modal clicks from bubbling to overlay */}
       <div style={s.modal} onClick={(e) => e.stopPropagation()}>
 
         <div style={s.header}>

client/src/components/TierWarning.jsx

@@ -17,14 +17,15 @@ export default function TierWarning({ currentPoints, addingPoints }) {
 
     return (
         <div style={{
-            background: '#fff3cd',
-            border: '2px solid #ffc107',
+            background: '#3b2e00',
+            border: '2px solid #d4af37',
             borderRadius: '6px',
             padding: '12px 16px',
             margin: '12px 0',
             fontSize: '13px',
+            color: '#ffdf8a',
         }}>
-            <strong>⚠ Tier Escalation Warning</strong><br />
+            <strong style={{ color: '#ffd666' }}>⚠ Tier Escalation Warning</strong><br />
             Adding <strong>{addingPoints} point{addingPoints !== 1 ? 's' : ''}</strong> will move this employee
             from <strong>{current.label}</strong> to <strong>{projected.label}</strong>.
             {tierUp && (

client/src/components/ViolationForm.jsx

@@ -35,6 +35,7 @@ const s = {
 const EMPTY_FORM = {
   employeeId: '', employeeName: '', department: '', supervisor: '', witnessName: '',
   violationType: '', incidentDate: '', incidentTime: '',
+  // TODO [MAJOR #6]: `amount` and `minutesLate` are rendered but never sent to the API
   amount: '', minutesLate: '', location: '', additionalDetails: '', points: 1,
   acknowledgedBy: '', acknowledgedDate: '',
 };
@@ -43,7 +44,7 @@ export default function ViolationForm() {
   const [employees,    setEmployees]    = useState([]);
   const [form,         setForm]         = useState(EMPTY_FORM);
   const [violation,    setViolation]    = useState(null);
-  const [status,       setStatus]       = useState(null);
+  const [status,       setStatus]       = useState(null);  // TODO [MAJOR #7]: remove — toast covers this
   const [lastViolId,   setLastViolId]   = useState(null);
   const [pdfLoading,   setPdfLoading]   = useState(false);
 
@@ -108,6 +109,7 @@ export default function ViolationForm() {
       setEmployees(empList.data);
 
       toast.success(`Violation #${newId} recorded — click Download PDF to save the document.`);
+      // TODO [MAJOR #7]: remove setStatus — toast above already covers this message
       setStatus({ ok: true, msg: `✓ Violation #${newId} recorded — click Download PDF to save the document.` });
       setForm(EMPTY_FORM);
       setViolation(null);

server.js

@@ -11,6 +11,10 @@ app.use(cors());
 app.use(express.json());
 app.use(express.static(path.join(__dirname, 'client', 'dist')));
 
+// TODO [CRITICAL #1]: No authentication on any route. Add an auth middleware
+// (e.g. express-session + password, or JWT) before all /api/* routes.
+// Anyone on the network can currently create, delete, or negate violations.
+
 // ── Demo static route ─────────────────────────────────────────────────────────
 // Serves the standalone stakeholder demo page at /demo/index.html
 // Must be registered before the SPA catch-all below.
@@ -49,6 +53,13 @@ app.get('/api/employees', (req, res) => {
   res.json(rows);
 });
 
+// GET /api/employees/:id — single employee record
+app.get('/api/employees/:id', (req, res) => {
+  const emp = db.prepare('SELECT id, name, department, supervisor, notes FROM employees WHERE id = ?').get(req.params.id);
+  if (!emp) return res.status(404).json({ error: 'Employee not found' });
+  res.json(emp);
+});
+
 app.post('/api/employees', (req, res) => {
   const { name, department, supervisor } = req.body;
   if (!name) return res.status(400).json({ error: 'name is required' });
@@ -58,6 +69,9 @@ app.post('/api/employees', (req, res) => {
       db.prepare('UPDATE employees SET department = COALESCE(?, department), supervisor = COALESCE(?, supervisor) WHERE id = ?')
         .run(department || null, supervisor || null, existing.id);
     }
+    // TODO [MINOR #16]: Spreading `existing` then overwriting with possibly-undefined
+    // `department`/`supervisor` returns `undefined` for unset fields.
+    // Re-query after update or only spread defined values.
     return res.json({ ...existing, department, supervisor });
   }
   const result = db.prepare('INSERT INTO employees (name, department, supervisor) VALUES (?, ?, ?)')
@@ -290,6 +304,17 @@ app.post('/api/violations', (req, res) => {
 // PATCH /api/violations/:id/amend — edit mutable fields; logs a diff per changed field
 const AMENDABLE_FIELDS = ['incident_time', 'location', 'details', 'submitted_by', 'witness_name', 'acknowledged_by', 'acknowledged_date'];
 
+// Pre-build one prepared UPDATE statement per amendable field combination is not
+// practical (2^n combos), so instead we validate columns against the static
+// whitelist and build the clause only from known-safe names at startup.
+// The whitelist itself is the guard; no user-supplied column name ever enters SQL.
+const AMEND_UPDATE_STMTS = Object.fromEntries(
+  AMENDABLE_FIELDS.map(f => [
+    f,
+    db.prepare(`UPDATE violations SET ${f} = ? WHERE id = ?`)
+  ])
+);
+
 app.patch('/api/violations/:id/amend', (req, res) => {
   const id        = parseInt(req.params.id);
   const { changed_by, ...updates } = req.body;
@@ -307,18 +332,14 @@ app.patch('/api/violations/:id/amend', (req, res) => {
   }
 
   const amendTransaction = db.transaction(() => {
-    // Build UPDATE
-    const setClauses = Object.keys(allowed).map(k => `${k} = ?`).join(', ');
-    const values     = [...Object.values(allowed), id];
-    db.prepare(`UPDATE violations SET ${setClauses} WHERE id = ?`).run(...values);
-
-    // Insert an amendment record per changed field
     const insertAmendment = db.prepare(`
       INSERT INTO violation_amendments (violation_id, changed_by, field_name, old_value, new_value)
       VALUES (?, ?, ?, ?, ?)
     `);
     for (const [field, newVal] of Object.entries(allowed)) {
       const oldVal = violation[field];
+      // Use the pre-built statement for this field — no runtime interpolation
+      AMEND_UPDATE_STMTS[field].run(newVal, id);
       if (String(oldVal) !== String(newVal)) {
         insertAmendment.run(id, changed_by || null, field, oldVal ?? null, newVal ?? null);
       }
@@ -391,6 +412,38 @@ app.delete('/api/violations/:id', (req, res) => {
   res.json({ success: true });
 });
 
+// ── Violation counts per employee ────────────────────────────────────────────
+// GET /api/employees/:id/violation-counts
+// Returns { violation_type: count } for the rolling 90-day window (non-negated).
+app.get('/api/employees/:id/violation-counts', (req, res) => {
+  const rows = db.prepare(`
+    SELECT violation_type, COUNT(*) AS count
+    FROM violations
+    WHERE employee_id = ?
+      AND negated = 0
+      AND incident_date >= DATE('now', '-90 days')
+    GROUP BY violation_type
+  `).all(req.params.id);
+  const result = {};
+  for (const r of rows) result[r.violation_type] = r.count;
+  res.json(result);
+});
+
+// GET /api/employees/:id/violation-counts/alltime
+// Returns { violation_type: { count, max_points_used } } across all time (non-negated).
+app.get('/api/employees/:id/violation-counts/alltime', (req, res) => {
+  const rows = db.prepare(`
+    SELECT violation_type, COUNT(*) AS count, MAX(points) AS max_points_used
+    FROM violations
+    WHERE employee_id = ?
+      AND negated = 0
+    GROUP BY violation_type
+  `).all(req.params.id);
+  const result = {};
+  for (const r of rows) result[r.violation_type] = { count: r.count, max_points_used: r.max_points_used };
+  res.json(result);
+});
+
 // ── Audit log ────────────────────────────────────────────────────────────────
 app.get('/api/audit', (req, res) => {
   const limit  = Math.min(parseInt(req.query.limit)  || 100, 500);