fix: Align skill naming convention to fix plugin loading errors

Fixed naming mismatch between SKILL.md and marketplace.json that caused
plugin loading errors when users tried to install the skill.

Changes:
- SKILL.md: agent-creator-en-v2 → agent-skill-creator
- marketplace.json: agent-sill-creator → agent-skill-creator (fixed typo)

Now follows the standard naming pattern:
- Skill name: agent-skill-creator
- Marketplace: agent-skill-creator
- Plugin: agent-skill-creator-plugin

This resolves the "Plugin 'agent-creator-en-plugin' not found in
marketplace 'agent-creator-en'" error reported by users.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -1,5 +1,5 @@
 {
-  "name": "agent-sill-creator",
+  "name": "agent-skill-creator",
   "owner": {
     "name": "Agent Skill Creator",
     "email": "agrolisboa@gmail.com"

SKILL.md

@@ -1,5 +1,5 @@
 ---
-name: agent-creator-en-v2
+name: agent-skill-creator
 description: This enhanced skill should be used when the user asks to create an agent, automate a repetitive workflow, create a custom skill, or needs advanced agent creation capabilities. Activates with phrases like every day, daily I have to, I need to repeat, create agent for, automate workflow, create skill for, need to automate, turn process into agent. Supports single agents, multi-agent suites, transcript processing, template-based creation, and interactive configuration. Claude will use the enhanced protocol to research APIs, define analyses, structure everything, implement functional code, and create complete skills autonomously with optional user guidance.
 ---
 # Agent Creator - Meta-Skill