docs: update stale hourgit log references to hourgit log add

The landing page and quick-start guide still used the old `hourgit log`
syntax after the command was moved under the `log` group. This aligns
them with the refactored CLI structure.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: Flyrell

web/docs/quick-start.md

@@ -32,8 +32,8 @@ git checkout fix/login-bug
 For meetings, reviews, research, or anything that isn't a branch switch:
 
 ```bash
-hourgit log --duration 1h30m "standup"
-hourgit log --from 9am --to 10:30am "code review"
+hourgit log add --duration 1h30m "standup"
+hourgit log add --from 9am --to 10:30am "code review"
 ```
 
 ## 4. View the interactive report

web/index.html

@@ -228,10 +228,10 @@ <h3>Log non-code work</h3>
                 <span class="terminal-dot"></span>
                 <span class="terminal-dot"></span>
               </div>
-              <pre><code><span class="t-prompt">$</span> hourgit log --duration 1h30m <span class="t-string">"code review"</span>
+              <pre><code><span class="t-prompt">$</span> hourgit log add --duration 1h30m <span class="t-string">"code review"</span>
 <span class="t-output">Logged <span class="t-accent">1h 30m</span> — code review</span>
 
-<span class="t-prompt">$</span> hourgit log --from 9am --to 10:30am <span class="t-string">"standup"</span>
+<span class="t-prompt">$</span> hourgit log add --from 9am --to 10:30am <span class="t-string">"standup"</span>
 <span class="t-output">Logged <span class="t-accent">1h 30m</span> — standup</span></code></pre>
             </div>
           </div>