feat(settings): relocate Gesture Control into Input section + release 0.8.2

- Move the Gesture Control (beta) toggle into the existing Input section
  (alongside Local Echo / CJK Input / Extended Keyboard Bar); remove the
  duplicate "Input" section header. Hide only the toggle (not the whole
  section) when CODEMAN_GESTURE=1 is unset.
- scripts/codeman-web.service: set CODEMAN_GESTURE=1 so the gesture feature
  is available on the local install (still gated by the default-OFF toggle).
- CLAUDE.md: version sync to 0.8.2 + config/app.js structural-count fixes.
- Version packages -> 0.8.2 (changeset covers detach, gesture overlay,
  multi-monitor, settings toggles, cache-busting).

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

src/web/public/index.html

@@ -933,6 +933,16 @@
                   <span class="slider"></span>
                 </label>
               </div>
+              <div class="settings-item settings-item-multiline" id="appSettingsGestureControlItem" title="Enable the camera hand-tracking gesture overlay (applied on reload). The instance must run with CODEMAN_GESTURE=1.">
+                <div class="settings-item-text">
+                  <span class="settings-item-label">Gesture Control (beta)</span>
+                  <span class="settings-item-desc">Camera hand-tracking overlay (applied on reload)</span>
+                </div>
+                <label class="switch switch-sm">
+                  <input type="checkbox" id="appSettingsGestureControl">
+                  <span class="slider"></span>
+                </label>
+              </div>
 
               <!-- Header Displays Section -->
               <div class="settings-section-header">Header Displays</div>
@@ -979,18 +989,6 @@
                 </label>
               </div>
 
-              <!-- Input Section -->
-              <div id="appSettingsInputSection">
-                <div class="settings-section-header">Input</div>
-                <div class="settings-item" title="Enable the camera hand-tracking gesture overlay (applied on reload). The instance must run with CODEMAN_GESTURE=1.">
-                  <span class="settings-item-label">Gesture Control (beta)</span>
-                  <label class="switch switch-sm">
-                    <input type="checkbox" id="appSettingsGestureControl">
-                    <span class="slider"></span>
-                  </label>
-                </div>
-              </div>
-
               <!-- Tab Bar Section -->
               <div class="settings-section-header">Tab Bar</div>
               <div class="settings-item" title="Show folder path below tab name and allow tab bar to wrap into multiple rows">