Add remaining source changes: resource data, refactored pages, updated styles

- Add example resources (agent, output-style, rule, skill)
   - Refactor legacy skill pages to use generic resource system
   - Update favicon, global styles, models, skills lib, and stats
   - Update PLAN.md

src/pages/[slug]/edit.astro

@@ -1,53 +1,7 @@
 ---
-import Base from '../../layouts/Base.astro';
-import SkillEditor from '../../components/SkillEditor.vue';
-import { getSkill, getAllTags } from '../../lib/skills';
-import { getAvailableTools } from '../../lib/tools';
-import { getAvailableModels } from '../../lib/models';
-
+/**
+ * Backward compatibility: /<slug>/edit → /skills/<slug>/edit
+ */
 const { slug } = Astro.params;
-const skill = await getSkill(slug!);
-
-if (!skill) {
-  return Astro.redirect('/');
-}
-
-const availableTools = await getAvailableTools();
-const availableModels = await getAvailableModels();
-const allowedTools = skill['allowed-tools'].join(', ');
-const hooksJson = skill.hooks ? JSON.stringify(skill.hooks, null, 2) : '';
-const availableTags = await getAllTags();
+return Astro.redirect(`/skills/${slug}/edit`, 301);
 ---
-
-<Base title={`Edit ${skill.name} — Skills Here`}>
-  <a href={`/${slug}`} class="inline-flex items-center gap-1 text-sm text-gray-600 hover:text-gray-300 transition-colors mb-4">
-    <svg class="h-3.5 w-3.5" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
-      <path stroke-linecap="round" stroke-linejoin="round" d="M15.75 19.5 8.25 12l7.5-7.5" />
-    </svg>
-    Back to {skill.name}
-  </a>
-  <h1 class="text-2xl font-bold tracking-tight text-white mb-2">Edit Skill</h1>
-  <p class="text-sm text-gray-500 mb-8">Editing <strong class="text-gray-400">{skill.name}</strong>. Users who already installed this skill will get the updated version on their next sync.</p>
-  <SkillEditor
-    mode="edit"
-    slug={slug}
-    initialName={skill.name}
-    initialDescription={skill.description}
-    initialAllowedTools={allowedTools}
-    initialArgumentHint={skill['argument-hint']}
-    initialModel={skill.model}
-    initialUserInvocable={skill['user-invocable']}
-    initialDisableModelInvocation={skill['disable-model-invocation']}
-    initialContext={skill.context}
-    initialAgent={skill.agent}
-    initialHooks={hooksJson}
-    initialBody={skill.content}
-    initialAuthor={skill.author}
-    initialAuthorEmail={skill['author-email']}
-    initialTags={skill.tags.join(', ')}
-    :availableTools={availableTools}
-    :availableModels={availableModels}
-    availableTags={availableTags.join(',')}
-    client:load
-  />
-</Base>