docs: Pages card says "and 9 more" so the list sums to 17

The card headline already reads "17 MCP tools" but the body named
eight tools and then said "and 7 more" — 8 + 7 = 15, the old count.
TOOL_ANNOTATIONS[] in src/mcp/mcp.c has 17 entries, so the tail is 9.

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docs/index.html

@@ -740,7 +740,7 @@
             </div>
             <div class="feature">
                 <h3>17 MCP tools</h3>
-                <p><code>search_graph</code>, <code>trace_path</code>, <code>detect_changes</code>, <code>query_graph</code> (Cypher), <code>get_architecture</code>, <code>get_code_snippet</code>, <code>check_index_coverage</code>, <code>manage_adr</code>, and 7 more.</p>
+                <p><code>search_graph</code>, <code>trace_path</code>, <code>detect_changes</code>, <code>query_graph</code> (Cypher), <code>get_architecture</code>, <code>get_code_snippet</code>, <code>check_index_coverage</code>, <code>manage_adr</code>, and 9 more.</p>
             </div>
             <div class="feature">
                 <h3>Cypher graph queries</h3>