fix(newos4): one error counter for errors/dashboard/world-model (v4.6.61)

Packet 2 (three surfaces, three answers). Measured first: `errors` scanned
/logs/current.log for [ERROR] lines, but that file only ever receives explicit
terminal.log('ERROR', ...) calls -- exactly one call site in the whole app -- so it
read 0. The dashboard added DebugSupervisor._errorDB plus failed tool calls (18),
and the world model read the debug DB alone (11).

- terminal.countErrors() / countLogErrors(): the single counter, exposed on the one
  object all three surfaces already hold
- `errors` prints the canonical total with its breakdown, the entry list (hash,
  count, severity, message), and reports the log scan separately as a mirror
- dashboard health.errors and health.errorBreakdown derive from it
- world model telemetry.recentErrors derives from it, plus errorsBySource
- terminal.log('ERROR', ...) now also records into DebugSupervisor, so the log is a
  human-readable mirror of one store instead of a second store almost nobody wrote

Verified live on v4.6.61: with a seeded debug entry + failed tool call, all three
report 2; a single log('ERROR') call moves debug 1->2 and the total by exactly 1
(the mirror line is counted once, in the log, and reported separately).

8 files changed, 134 insertions, 31 deletions

diff --git a/help.html b/help.html
index 86816d7..60dbf4a 100644
--- a/help.html
+++ b/help.html
@@ -1672,12 +1672,13 @@ listmods</pre>
     <h2>📋 Changelog</h2>
 
     <div class="version-item">
-      <div class="v-header"><span class="v-num">v4.6.57/58 — October 2026</span><span class="v-date">2026-10-23</span></div>
+      <div class="v-header"><span class="v-num">v4.6.57–60 — October 2026</span><span class="v-date">2026-10-23</span></div>
       <ul>
         <li><strong>No shell — and it now says so</strong> — <code>;</code>, <code>&amp;&amp;</code> and <code>||</code> are refused with an explicit message instead of being folded into the command's argv (where <code>wc -l f &amp;&amp; grep -c x f</code> returned a plausible wrong number). A <code>|</code> arriving from the AI <code>run_command</code> tool is refused too, because that path bypasses the pipe splitter and degraded the pattern to empty. Documented at the top of the command reference.</li>
         <li><strong>Multiple paths in <code>wc</code></strong> — <code>wc -c a b</code> printed only <code>a</code> and exited clean. It now prints one line per file plus a <code>total</code>, and reports each missing file separately.</li>
         <li><strong><code>ls</code> prints text</strong> — it rendered only clickable chips (DOM-only), so any capture — the AI <code>run_command</code> tool, the diagnostics sweep — saw an empty result and reported "directory empty".</li>
         <li><strong><code>view_module</code> shows what is deployed</strong> — it returned the <code>_mods/&lt;Class&gt;.js</code> edit cache first, unversioned, so after a rebuild it showed pre-fix source while the bundle was new. It now fetches the deployed file and prefixes the version; the cache is a labelled fallback.</li>
+        <li><strong>One error counter</strong> — <code>errors</code>, <code>get_dashboard_data</code> and the world model tallied three different sinks (0 / 18 / 11 in the same second). All three now read <code>terminal.countErrors()</code> (DebugSupervisor DB + failed tool calls); the VFS log is reported separately as a mirror, and <code>terminal.log('ERROR', …)</code> now records into the same DB instead of a second store nobody read.</li>
         <li><strong>Predictor arithmetic</strong> — the stored field named <code>mape</code> held a sum, so any JSON consumer read a mean that was <em>n</em> times too large (now <code>errorSum</code>); <code>errorPct</code> is stored raw and clamped only at render (a 475× miss used to be flattened to 500%); predictions are floored at 1 s and floor-hits are not scored, because one 0.079 s aborted run was rounding the next prediction to 0 s.</li>
       </ul>
     </div>
diff --git a/main.html b/main.html
index 5c2bf8f..ffac150 100644
--- a/main.html
+++ b/main.html
@@ -1349,13 +1349,13 @@
     </script>
 
     <!-- v4.5.63: A2A scratchpad fixes + agent-register arg fix -->
-<script src="modules/core/core-bundle.js?v=v4.6.58"></script>
+<script src="modules/core/core-bundle.js?v=v4.6.61"></script>
 
     <!-- Async dependency-ordered module loader now only initializes terminal and loads optional ext modules -->
-<script src="modules/core/module-loader.js?v=v4.6.58"></script>
+<script src="modules/core/module-loader.js?v=v4.6.61"></script>
 
     <!-- Critical ext bundle loads AFTER webx11 exists so registerModule calls work -->
-<script src="modules/ext/critical-ext-bundle.js?v=v4.6.58"></script>
+<script src="modules/ext/critical-ext-bundle.js?v=v4.6.61"></script>
 
 <script>
 // ═══ ONE TRUE VERSION SOURCE ═══
diff --git a/modules/core/core-bundle.js b/modules/core/core-bundle.js
index 941707e..e265b68 100644
--- a/modules/core/core-bundle.js
+++ b/modules/core/core-bundle.js
@@ -5406,6 +5406,16 @@ Only output XML function calls for tool tasks. If no tool is needed, answer norm
                 }
             }
             log(level, source, message) {
+                // v4.6.60: an ERROR also goes to the DebugSupervisor DB, so the log is a
+                // human-readable MIRROR of one store instead of a second store that only one
+                // code path ever wrote to (packet §2: 0 / 18 / 11 in the same second).
+                if (String(level).toUpperCase() === 'ERROR') {
+                    try {
+                        const ds = this.moduleManager && this.moduleManager.modules
+                            ? this.moduleManager.modules['DebugSupervisorModule'] : null;
+                        if (ds && typeof ds._recordError === 'function') ds._recordError(String(message), String(source || 'terminal'));
+                    } catch (e) { /* never let logging throw */ }
+                }
                 const d = new Date();
                 const ts = d.toISOString().split('T')[1].split('.')[0];
                 const entry = `[${ts}][${level}][${source}] ${message}`;
@@ -5424,6 +5434,28 @@ Only output XML function calls for tool tasks. If no tool is needed, answer norm
                     }
                 } catch (e) {}
             }
+            // v4.6.59: ONE error counter. Three surfaces used to disagree because each
+            // tallied a different sink: `errors` scanned /logs/current.log (which only ever
+            // receives explicit terminal.log('ERROR') calls — one call site in the whole app),
+            // the dashboard added debug-DB + failed tool calls, and the world model read the
+            // debug DB alone. Measured: 0 / 18 / 11 in the same second (packet §2).
+            countLogErrors() {
+                try {
+                    const c = this.fs.readFile('/logs/current.log') || '';
+                    return c.split('\n').filter(l => l.includes('[ERROR]')).length;
+                } catch (e) { return 0; }
+            }
+            countErrors() {
+                const mm = this.moduleManager;
+                const ds = mm && mm.modules ? mm.modules['DebugSupervisorModule'] : null;
+                const sm = mm && mm.modules ? mm.modules['ServerMonitorModule'] : null;
+                const debug = (ds && ds._errorDB && ds._errorDB.errors)
+                    ? Object.keys(ds._errorDB.errors).length : 0;
+                const latency = (sm && Array.isArray(sm._latencyLog))
+                    ? sm._latencyLog.filter(e => e && e.error).length : 0;
+                const log = this.countLogErrors();
+                return { debug: debug, latency: latency, log: log, total: debug + latency };
+            }
             setAiBusy(busy) {
                 this._aiBusy = !!busy;
                 if (this._aiBusyInterval) {
@@ -5678,13 +5710,25 @@ Only output XML function calls for tool tasks. If no tool is needed, answer norm
                 // v4.5.43: errors [n] — alias for logs [n] ERROR
                 this.commands['errors'] = (args) => {
                     const n = parseInt(args[0]) || 20;
-                    const content = this.terminal.fs.readFile('/logs/current.log');
-                    if (!content) { this.terminal.print('No logs yet', 'info'); return; }
-                    const lines = content.split('\n').filter(l => l && l.includes('[ERROR]'));
-                    const tail = lines.slice(-n);
-                    if (tail.length === 0) { this.terminal.print('✅ No errors found in logs', 'success'); return; }
-                    this.terminal.print(`--- Errors (last ${tail.length}) ---`, 'error');
-                    tail.forEach(l => this.terminal.print(l, 'error'));
+                    // v4.6.59: read the canonical counter (DebugSupervisor DB + failed tool
+                    // calls) — the same numbers the dashboard and world model publish. The VFS
+                    // log is reported separately because it only receives explicit
+                    // terminal.log('ERROR') calls, so it cannot be the source of truth.
+                    const e = this.terminal.countErrors();
+                    if (e.total === 0) {
+                        this.terminal.print(`✅ 0 errors — debug DB ${e.debug} · failed tool calls ${e.latency} · log ${e.log}`, 'success');
+                    } else {
+                        this.terminal.print(`--- ${e.total} ${e.total === 1 ? 'error' : 'errors'} — debug DB ${e.debug} · failed tool calls ${e.latency} ---`, 'error');
+                        const ds = this.terminal.moduleManager.modules['DebugSupervisorModule'];
+                        const entries = Object.entries((ds && ds._errorDB && ds._errorDB.errors) || {})
+                            .map(([hash, v]) => Object.assign({ hash: hash }, v))
+                            .sort((a, b) => (b.lastSeen || 0) - (a.lastSeen || 0))
+                            .slice(0, n);
+                        entries.forEach(x => this.terminal.print(
+                            (x.hash || '').slice(0, 8) + ' ×' + (x.count || 1) + ' ' +
+                            ((x.severity || '') + ' ' + (x.message || '')).trim(), 'error'));
+                    }
+                    this.terminal.print(`  scope: this browser session · log scan ${e.log} [ERROR] line(s) in /logs/current.log`, 'info');
                 };
 
                 // v4.5.43: doctor — run all health checks, rank issues, show top 3
@@ -12914,12 +12958,13 @@ buildSystemPrompt() {
                     }
 
                     // System health
-                    var totalErrors = 0;
+                    var errCounts = { total: 0, debug: 0, latency: 0, log: 0 };
                     try {
-                        var ds = mm ? mm.modules['DebugSupervisorModule'] : null;
-                        if (ds && ds._errorDB) totalErrors += Object.keys(ds._errorDB.errors).length;
-                        if (sm && sm._latencyLog) totalErrors += sm._latencyLog.filter(function(e) { return e.error; }).length;
+                        if (this.terminal && typeof this.terminal.countErrors === 'function') {
+                            errCounts = this.terminal.countErrors();
+                        }
                     } catch (e) {}
+                    var totalErrors = errCounts.total;
                     var predictor = mm ? mm.modules['PredictorModule'] : null;
                     var predictorAcc = 'n/a (no paired runs)';
                     if (predictor && predictor._accuracy && predictor._accuracy.total > 0) {
@@ -12931,6 +12976,7 @@ buildSystemPrompt() {
                         vfsSize: data.vfs ? data.vfs.size : '?',
                         online: typeof navigator !== 'undefined' ? navigator.onLine : true,
                         errors: totalErrors,
+                        errorBreakdown: errCounts,
                         predictorAccuracy: predictorAcc
                     };
 
@@ -18469,10 +18515,15 @@ class WorldModelModule {
             const sm = this.terminal?.moduleManager?.modules?.['ServerMonitorModule'];
             const ds = this.terminal?.moduleManager?.modules?.['DebugSupervisorModule'];
             const latencyDataPoints = sm?._latencyLog ? Object.keys(sm._latencyLog).length : 0;
-            const recentErrors = ds ? Object.keys(ds._errorDB?.errors || {}).length : 0;
+            // v4.6.59: same canonical counter as the `errors` command and the dashboard.
+            // Reading the debug DB alone made the world model disagree with both (packet §2).
+            const errInfo = (this.terminal && typeof this.terminal.countErrors === 'function')
+                ? this.terminal.countErrors()
+                : { total: ds ? Object.keys(ds._errorDB?.errors || {}).length : 0, debug: 0, latency: 0, log: 0 };
             return {
                 toolLatencyDataPoints: latencyDataPoints,
-                recentErrors: recentErrors,
+                recentErrors: errInfo.total,
+                errorsBySource: { debug: errInfo.debug, toolCalls: errInfo.latency, log: errInfo.log },
             };
         } catch (e) {
             console.warn('[WorldModel] Telemetry gather error:', e.message);
diff --git a/modules/core/module-aiassist.js b/modules/core/module-aiassist.js
index 628e68a..3326483 100644
--- a/modules/core/module-aiassist.js
+++ b/modules/core/module-aiassist.js
@@ -4641,12 +4641,13 @@ buildSystemPrompt() {
                     }
 
                     // System health
-                    var totalErrors = 0;
+                    var errCounts = { total: 0, debug: 0, latency: 0, log: 0 };
                     try {
-                        var ds = mm ? mm.modules['DebugSupervisorModule'] : null;
-                        if (ds && ds._errorDB) totalErrors += Object.keys(ds._errorDB.errors).length;
-                        if (sm && sm._latencyLog) totalErrors += sm._latencyLog.filter(function(e) { return e.error; }).length;
+                        if (this.terminal && typeof this.terminal.countErrors === 'function') {
+                            errCounts = this.terminal.countErrors();
+                        }
                     } catch (e) {}
+                    var totalErrors = errCounts.total;
                     var predictor = mm ? mm.modules['PredictorModule'] : null;
                     var predictorAcc = 'n/a (no paired runs)';
                     if (predictor && predictor._accuracy && predictor._accuracy.total > 0) {
@@ -4658,6 +4659,7 @@ buildSystemPrompt() {
                         vfsSize: data.vfs ? data.vfs.size : '?',
                         online: typeof navigator !== 'undefined' ? navigator.onLine : true,
                         errors: totalErrors,
+                        errorBreakdown: errCounts,
                         predictorAccuracy: predictorAcc
                     };
 
diff --git a/modules/core/module-loader.js b/modules/core/module-loader.js
index 0708228..ddb2874 100644
--- a/modules/core/module-loader.js
+++ b/modules/core/module-loader.js
@@ -4,7 +4,7 @@
     // Core module bundle loaded synchronously in main.html.
     // This loader only handles version cache-busting, splash, terminal init, and optional ext modules.
 
-    const LATEST_VER = 'v4.6.58';
+    const LATEST_VER = 'v4.6.61';
     const CACHE = '?v=' + LATEST_VER;
     const stored = localStorage.getItem('webx11_cache_ver');
     if (stored !== LATEST_VER) {
diff --git a/modules/core/module-system.js b/modules/core/module-system.js
index e7f7e5a..b9b62a6 100644
--- a/modules/core/module-system.js
+++ b/modules/core/module-system.js
@@ -144,13 +144,25 @@
                 // v4.5.43: errors [n] — alias for logs [n] ERROR
                 this.commands['errors'] = (args) => {
                     const n = parseInt(args[0]) || 20;
-                    const content = this.terminal.fs.readFile('/logs/current.log');
-                    if (!content) { this.terminal.print('No logs yet', 'info'); return; }
-                    const lines = content.split('\n').filter(l => l && l.includes('[ERROR]'));
-                    const tail = lines.slice(-n);
-                    if (tail.length === 0) { this.terminal.print('✅ No errors found in logs', 'success'); return; }
-                    this.terminal.print(`--- Errors (last ${tail.length}) ---`, 'error');
-                    tail.forEach(l => this.terminal.print(l, 'error'));
+                    // v4.6.59: read the canonical counter (DebugSupervisor DB + failed tool
+                    // calls) — the same numbers the dashboard and world model publish. The VFS
+                    // log is reported separately because it only receives explicit
+                    // terminal.log('ERROR') calls, so it cannot be the source of truth.
+                    const e = this.terminal.countErrors();
+                    if (e.total === 0) {
+                        this.terminal.print(`✅ 0 errors — debug DB ${e.debug} · failed tool calls ${e.latency} · log ${e.log}`, 'success');
+                    } else {
+                        this.terminal.print(`--- ${e.total} ${e.total === 1 ? 'error' : 'errors'} — debug DB ${e.debug} · failed tool calls ${e.latency} ---`, 'error');
+                        const ds = this.terminal.moduleManager.modules['DebugSupervisorModule'];
+                        const entries = Object.entries((ds && ds._errorDB && ds._errorDB.errors) || {})
+                            .map(([hash, v]) => Object.assign({ hash: hash }, v))
+                            .sort((a, b) => (b.lastSeen || 0) - (a.lastSeen || 0))
+                            .slice(0, n);
+                        entries.forEach(x => this.terminal.print(
+                            (x.hash || '').slice(0, 8) + ' ×' + (x.count || 1) + ' ' +
+                            ((x.severity || '') + ' ' + (x.message || '')).trim(), 'error'));
+                    }
+                    this.terminal.print(`  scope: this browser session · log scan ${e.log} [ERROR] line(s) in /logs/current.log`, 'info');
                 };
 
                 // v4.5.43: doctor — run all health checks, rank issues, show top 3
diff --git a/modules/core/module-world-model.js b/modules/core/module-world-model.js
index 4e88f59..d48327b 100644
--- a/modules/core/module-world-model.js
+++ b/modules/core/module-world-model.js
@@ -257,10 +257,15 @@ class WorldModelModule {
             const sm = this.terminal?.moduleManager?.modules?.['ServerMonitorModule'];
             const ds = this.terminal?.moduleManager?.modules?.['DebugSupervisorModule'];
             const latencyDataPoints = sm?._latencyLog ? Object.keys(sm._latencyLog).length : 0;
-            const recentErrors = ds ? Object.keys(ds._errorDB?.errors || {}).length : 0;
+            // v4.6.59: same canonical counter as the `errors` command and the dashboard.
+            // Reading the debug DB alone made the world model disagree with both (packet §2).
+            const errInfo = (this.terminal && typeof this.terminal.countErrors === 'function')
+                ? this.terminal.countErrors()
+                : { total: ds ? Object.keys(ds._errorDB?.errors || {}).length : 0, debug: 0, latency: 0, log: 0 };
             return {
                 toolLatencyDataPoints: latencyDataPoints,
-                recentErrors: recentErrors,
+                recentErrors: errInfo.total,
+                errorsBySource: { debug: errInfo.debug, toolCalls: errInfo.latency, log: errInfo.log },
             };
         } catch (e) {
             console.warn('[WorldModel] Telemetry gather error:', e.message);
diff --git a/modules/core/terminal.js b/modules/core/terminal.js
index 10608d1..76406b5 100644
--- a/modules/core/terminal.js
+++ b/modules/core/terminal.js
@@ -2954,6 +2954,16 @@
                 }
             }
             log(level, source, message) {
+                // v4.6.60: an ERROR also goes to the DebugSupervisor DB, so the log is a
+                // human-readable MIRROR of one store instead of a second store that only one
+                // code path ever wrote to (packet §2: 0 / 18 / 11 in the same second).
+                if (String(level).toUpperCase() === 'ERROR') {
+                    try {
+                        const ds = this.moduleManager && this.moduleManager.modules
+                            ? this.moduleManager.modules['DebugSupervisorModule'] : null;
+                        if (ds && typeof ds._recordError === 'function') ds._recordError(String(message), String(source || 'terminal'));
+                    } catch (e) { /* never let logging throw */ }
+                }
                 const d = new Date();
                 const ts = d.toISOString().split('T')[1].split('.')[0];
                 const entry = `[${ts}][${level}][${source}] ${message}`;
@@ -2972,6 +2982,28 @@
                     }
                 } catch (e) {}
             }
+            // v4.6.59: ONE error counter. Three surfaces used to disagree because each
+            // tallied a different sink: `errors` scanned /logs/current.log (which only ever
+            // receives explicit terminal.log('ERROR') calls — one call site in the whole app),
+            // the dashboard added debug-DB + failed tool calls, and the world model read the
+            // debug DB alone. Measured: 0 / 18 / 11 in the same second (packet §2).
+            countLogErrors() {
+                try {
+                    const c = this.fs.readFile('/logs/current.log') || '';
+                    return c.split('\n').filter(l => l.includes('[ERROR]')).length;
+                } catch (e) { return 0; }
+            }
+            countErrors() {
+                const mm = this.moduleManager;
+                const ds = mm && mm.modules ? mm.modules['DebugSupervisorModule'] : null;
+                const sm = mm && mm.modules ? mm.modules['ServerMonitorModule'] : null;
+                const debug = (ds && ds._errorDB && ds._errorDB.errors)
+                    ? Object.keys(ds._errorDB.errors).length : 0;
+                const latency = (sm && Array.isArray(sm._latencyLog))
+                    ? sm._latencyLog.filter(e => e && e.error).length : 0;
+                const log = this.countLogErrors();
+                return { debug: debug, latency: latency, log: log, total: debug + latency };
+            }
             setAiBusy(busy) {
                 this._aiBusy = !!busy;
                 if (this._aiBusyInterval) {