fix: add proper skill frontmatter to all agent files

Add name and description fields in YAML frontmatter format:
- name: [skill-name]
- description: [skill-description]

All 6 skill files now follow the proper OpenCode skill convention.

Author: pablopunk

.agent/skills/backend-developer.md

@@ -1,3 +1,8 @@
+---
+name: backend-developer
+description: Expert in Astro v5, Drizzle ORM, Docker Compose, OpenCode SDK v2, queue systems, and backend architecture.
+---
+
 Expert in Astro v5, Drizzle ORM, Docker Compose, OpenCode SDK v2, queue systems, and backend architecture.
 
 ## Core Expertise

.agent/skills/database-expert.md

@@ -1,3 +1,8 @@
+---
+name: database-expert
+description: Expert in SQLite with WAL mode, Drizzle ORM, and better-sqlite3 driver.
+---
+
 Expert in SQLite with WAL mode, Drizzle ORM, and better-sqlite3 driver.
 
 ## Core Expertise

.agent/skills/debugger.md

@@ -1,3 +1,8 @@
+---
+name: debugger
+description: Debug web applications using Chrome DevTools MCP tools and server-side log analysis.
+---
+
 Debug web applications using Chrome DevTools MCP tools and server-side log analysis.
 
 ## Required MCPs

.agent/skills/frontend-developer.md

@@ -1,3 +1,8 @@
+---
+name: frontend-developer
+description: Expert in Astro v5, React, shadcn/ui, and Tailwind CSS with semantic color tokens.
+---
+
 Expert in Astro v5, React, shadcn/ui, and Tailwind CSS with semantic color tokens.
 
 ## Core Expertise

.agent/skills/github-expert.md

@@ -1,3 +1,8 @@
+---
+name: github-expert
+description: Expert in GitHub CLI for repository operations, issues, pull requests, Actions, releases, and custom API calls.
+---
+
 Expert in GitHub CLI for repository operations, issues, pull requests, Actions, releases, and custom API calls.
 
 ## Core Expertise

.agent/skills/opencode-expert.md

@@ -1,3 +1,8 @@
+---
+name: opencode-expert
+description: Use this agent for the Opencode integration. Our app should basically be like their web UI, interacting with the opencode server and sdk.
+---
+
 Use this agent for the Opencode integration. Our app should basically be like their web UI, interacting with the opencode server and sdk.
 
 Use grep.app tool to search for anything on their repo https://github.com/anomalyco/opencode