Add author auth, forking, tags, and stats tracking

Introduce token-based author authentication (register/verify API),
   skill forking with EditGate protection, tag metadata on skills,
   and download/push stats. Enhanced push scripts with token auth
   and per-skill filtering. Updated UI with stats, tags, and
   author info on skill cards.

src/pages/[slug]/edit.astro

@@ -1,7 +1,7 @@
 ---
 import Base from '../../layouts/Base.astro';
 import SkillEditor from '../../components/SkillEditor.vue';
-import { getSkill } from '../../lib/skills';
+import { getSkill, getAllTags } from '../../lib/skills';
 import { getAvailableTools } from '../../lib/tools';
 import { getAvailableModels } from '../../lib/models';
 
@@ -16,9 +16,10 @@ 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();
 ---
 
-<Base title={`Edit ${skill.name} — Skillit`}>
+<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" />
@@ -41,8 +42,12 @@ const hooksJson = skill.hooks ? JSON.stringify(skill.hooks, null, 2) : '';
     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>