fix(terminal): restore Claude scroll-back on macOS trackpads (#154)

Deterministic claude --version probe seeds cliVersion so wheel-forwarding
to Claude's transcript engages (banner scrape was unreliable on 2.1.187+
and resumed sessions). Shift+wheel reads the dominant axis so a trackpad's
horizontal Shift-scroll reaches local scrollback. New per-device
"Wheel Scrolls Local History" opt-out. Wheel reports use a fire-and-forget
send path so they no longer flicker the pending-bytes indicator.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/web/public/settings-ui.js

@@ -337,6 +337,8 @@ Object.assign(CodemanApp.prototype, {
     document.getElementById('appSettingsTunnelEnabled').checked = settings.tunnelEnabled ?? false;
     this.loadTunnelStatus();
     document.getElementById('appSettingsLocalEcho').checked = settings.localEchoEnabled ?? MobileDetection.isTouchDevice();
+    document.getElementById('appSettingsTerminalWheelLocal').checked =
+      settings.terminalWheelLocalScrollback ?? defaults.terminalWheelLocalScrollback ?? false;
     document.getElementById('appSettingsCjkInput').checked = settings.cjkInputEnabled ?? defaults.cjkInputEnabled ?? false;
     document.getElementById('appSettingsExtendedKeyboardBar').checked = settings.extendedKeyboardBar ?? false;
     document.getElementById('appSettingsTabTwoRows').checked = settings.tabTwoRows ?? defaults.tabTwoRows ?? false;
@@ -1436,6 +1438,7 @@ Object.assign(CodemanApp.prototype, {
       imageWatcherEnabled: document.getElementById('appSettingsImageWatcherEnabled').checked,
       tunnelEnabled: document.getElementById('appSettingsTunnelEnabled').checked,
       localEchoEnabled: document.getElementById('appSettingsLocalEcho').checked,
+      terminalWheelLocalScrollback: document.getElementById('appSettingsTerminalWheelLocal').checked,
       cjkInputEnabled: document.getElementById('appSettingsCjkInput').checked,
       webglRendererEnabled: document.getElementById('appSettingsWebglRenderer').checked,
       extendedKeyboardBar: document.getElementById('appSettingsExtendedKeyboardBar').checked,
@@ -1609,6 +1612,7 @@ Object.assign(CodemanApp.prototype, {
       showPlanUsageLimits: _pul,
       showAttachmentsButton: _ahb,
       webglRendererEnabled: _wgl,
+      terminalWheelLocalScrollback: _twls,
       ...serverSettings
     } = settings;
     try {
@@ -1775,6 +1779,7 @@ Object.assign(CodemanApp.prototype, {
         ralphTrackerEnabled: false,
         tabTwoRows: false,
         cjkInputEnabled: false,
+        terminalWheelLocalScrollback: false, // mobile scrolls via touch, not wheel
         webglRendererEnabled: false, // mobile always uses the DOM renderer
         skin: 'daylight-blue',
       };
@@ -2149,6 +2154,7 @@ Object.assign(CodemanApp.prototype, {
           'showMonitor', 'showProjectInsights', 'showFileBrowser', 'showSubagents',
           'subagentActiveTabOnly', 'tabTwoRows', 'localEchoEnabled', 'cjkInputEnabled', 'extendedKeyboardBar',
           'skin', 'showPlanUsageLimits', 'showAttachmentsButton', 'webglRendererEnabled',
+          'terminalWheelLocalScrollback',
         ]);
         // The plan-usage chip is a PER-DEVICE display setting (default OFF): desktop
         // can show it while mobile stays hidden. It used to sync, so an older