feat: vendor tool icons and "this is fine" GIF locally

Download the Terraform/Ansible/Puppet simpleicons SVGs and the giphy
GIF into vendor/ and point all references at local paths, so the deck
runs fully offline with no runtime CDN dependencies.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

vendor/icons/ansible.svg

@@ -0,0 +1 @@
+<svg fill="#EE0000" role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Ansible</title><path d="M10.617 11.473l4.686 3.695-3.102-7.662zM12 0C5.371 0 0 5.371 0 12s5.371 12 12 12 12-5.371 12-12S18.629 0 12 0zm5.797 17.305c-.011.471-.403.842-.875.83-.236 0-.416-.09-.664-.293l-6.19-5-2.079 5.203H6.191L11.438 5.44c.124-.314.427-.52.764-.506.326-.014.63.189.742.506l4.774 11.494c.045.111.08.234.08.348-.001.009-.001.009-.001.023z"/></svg>

vendor/icons/puppet.svg

@@ -0,0 +1 @@
+<svg fill="#C17F00" role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Puppet</title><path d="M8.984 21.611H6.595v-2.388h2.39zM6.595 2.39h2.39v2.388h-2.39zm13.198 6.028h-5.48l.001-.002-2.941-2.941V0H4.207v7.166h5.48l2.938 2.938.002-.001v3.794l-.003-.003-2.94 2.94H4.207V24h7.166v-5.477l2.94-2.94h5.48V8.417"/></svg>

vendor/icons/terraform.svg

@@ -0,0 +1 @@
+<svg fill="#844FBA" role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Terraform</title><path d="M1.44 0v7.575l6.561 3.79V3.787zm21.12 4.227l-6.561 3.791v7.574l6.56-3.787zM8.72 4.23v7.575l6.561 3.787V8.018zm0 8.405v7.575L15.28 24v-7.578z"/></svg>