docs: add package compilation and symlinks configuration

Add Koji package compilation documentation outlining SCM, lookaside cache, and repository priority configuration. Fix Apache configuration to follow symlinks in /mnt/koji.

Co-developed-by: Gemini AI <renich+gemini@woralelandia.com>

Signed-off-by: Rénich Bon Ćirić <renich@woralelandia.com>

roles/koji_hub/tasks/main.yaml

@@ -158,6 +158,13 @@
     - { path: "{{ koji_hub_httpd_ssl_config_file }}", regexp: "^#?SSLProtocol", line: "SSLProtocol all -SSLv3 -TLSv1 -TLSv1.1 -TLSv1.3" }
   notify: Restart httpd
 
+- name: Configure Apache to follow symlinks in /mnt/koji
+  ansible.builtin.replace:
+    path: /etc/httpd/conf.d/kojihub.conf
+    regexp: 'Options Indexes SymLinksIfOwnerMatch'
+    replace: 'Options Indexes FollowSymLinks'
+  notify: Restart httpd
+
 - name: Enable SSL for Koji Hub
   ansible.builtin.blockinfile:
     path: "{{ koji_hub_httpd_config_file }}"