replace em dashes with hyphens in visible page copy

Brain of Reese card description and the ServWaf preview code line
no longer use em dashes. (The two em dashes on the rewritten Huntington
bullet already shipped with the past-tense change.)

LLM-Generated: true

src/index.html

@@ -308,7 +308,7 @@
                     </div>
                     <div class="project-info">
                         <h3>Brain of Reese</h3>
-                        <p>A chippy, honest RAG chatbot over homelab documentation — git repositories, local
+                        <p>A chippy, honest RAG chatbot over homelab documentation - git repositories, local
                             directories, and uploaded archives. Hybrid search (pgvector cosine ∪ Postgres
                             full-text search, Reciprocal Rank Fusion) feeds the whole relevant document to a
                             self-hosted LLM and streams back a grounded answer; when it has no notes it
@@ -505,7 +505,7 @@
                 <div class="project-card fade-in" role="listitem">
                     <div class="project-preview">
                         <div class="code-block">
-                            <div class="code-line"><span class="code-comment"># ServWaf — declarative rules</span></div>
+                            <div class="code-line"><span class="code-comment"># ServWaf - declarative rules</span></div>
                             <div class="code-line"><span class="code-variable">ratelimit</span>:</div>
                             <div class="code-line">&nbsp;&nbsp;<span class="code-variable">per_ip</span>: <span
                                     class="code-string">20 rps, burst 40</span></div>