feat: add maximize window support with MRU focus tracking and demo timing configs

Implement client maximize/unmaximize toggle and state tracking via CLIENT_MAXIMIZED flag, add MRU (most-recently-used) doubly-linked list per workspace for intelligent focus restoration on client unmanage, introduce configurable focus-follow delay (0-1000ms) for sloppy focus mode, and add demo mode timing parameters (step_delay, ai_timeout, window_timeout) with corresponding wait condition enum and configuration parsing in the [demo] section.

site/configuration.html

@@ -93,6 +93,11 @@
                                 <td><code>click</code></td>
                                 <td><code>click</code> or <code>follow</code> (sloppy focus)</td>
                             </tr>
+                            <tr>
+                                <td><code>focus_follow_delay</code></td>
+                                <td><code>100</code></td>
+                                <td>Delay in ms before focus switches in follow mode (0-1000)</td>
+                            </tr>
                             <tr>
                                 <td><code>decorations</code></td>
                                 <td><code>true</code></td>
@@ -109,7 +114,8 @@
 terminal = alacritty
 launcher = rofi -show run
 file_manager = nautilus
-focus_mode = click
+focus_mode = follow
+focus_follow_delay = 100
 decorations = true</code></pre>
                 <h2 id="appearance" style="margin-top: 3rem;">[appearance] - Visual Settings</h2>
                 <p style="color: var(--text-muted); margin-bottom: 1.5rem;">
@@ -432,6 +438,42 @@ path = ~/.config/dwn/autostart.d</code></pre>
                     <li><code>~/.config/autostart/</code> - User XDG autostart entries</li>
                     <li><code>~/.config/dwn/autostart.d/</code> - DWN-specific symlinks and scripts</li>
                 </ul>
+                <h2 id="demo" style="margin-top: 3rem;">[demo] - Demo Mode</h2>
+                <p style="color: var(--text-muted); margin-bottom: 1.5rem;">
+                    Configure demo mode timing. The demo showcases DWN features including live AI and search functionality.
+                </p>
+                <div class="table-wrapper">
+                    <table>
+                        <thead>
+                            <tr>
+                                <th>Option</th>
+                                <th>Description</th>
+                            </tr>
+                        </thead>
+                        <tbody>
+                            <tr>
+                                <td><code>step_delay</code></td>
+                                <td>Time between demo steps in milliseconds (1000-30000, default: 4000)</td>
+                            </tr>
+                            <tr>
+                                <td><code>ai_timeout</code></td>
+                                <td>Timeout for AI/Exa API responses in milliseconds (5000-60000, default: 15000)</td>
+                            </tr>
+                            <tr>
+                                <td><code>window_timeout</code></td>
+                                <td>Timeout for window spawn operations in milliseconds (1000-30000, default: 5000)</td>
+                            </tr>
+                        </tbody>
+                    </table>
+                </div>
+                <div class="code-header">
+                    <span>Example</span>
+                    <button class="copy-btn" onclick="copyCode(this)">Copy</button>
+                </div>
+                <pre><code>[demo]
+step_delay = 4000
+ai_timeout = 15000
+window_timeout = 5000</code></pre>
                 <h2 style="margin-top: 3rem;">Complete Configuration Example</h2>
                 <div class="code-header">
                     <span>~/.config/dwn/config</span>
@@ -444,6 +486,7 @@ terminal = alacritty
 launcher = rofi -show drun
 file_manager = thunar
 focus_mode = click
+focus_follow_delay = 100
 decorations = true
 [appearance]
 border_width = 2
@@ -478,7 +521,11 @@ model = google/gemini-2.0-flash-exp:free
 [autostart]
 enabled = true
 xdg_autostart = true
-path = ~/.config/dwn/autostart.d</code></pre>
+path = ~/.config/dwn/autostart.d
+[demo]
+step_delay = 4000
+ai_timeout = 15000
+window_timeout = 5000</code></pre>
             </div>
         </section>
     </main>