fix: add Bash(git init:*) to create-marketplace allowed-tools

The create-marketplace command's Phase 4 instructs Claude to "Initialize
git repo if creating new directory", but the allowed-tools frontmatter
was missing Bash(git init:*). This caused permission failures or prompts
when the command attempted to initialize a git repository.

This aligns create-marketplace.md with create-plugin.md, which correctly
includes this tool.

Fixes #109

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

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

Author: sjnims

plugins/plugin-dev/commands/create-marketplace.md

@@ -1,7 +1,7 @@
 ---
 description: Create plugin marketplaces with guided workflow
 argument-hint: [marketplace-description]
-allowed-tools: Read, Write, Edit, Grep, Glob, Bash(mkdir:*), TodoWrite, AskUserQuestion, Skill, Task
+allowed-tools: Read, Write, Edit, Grep, Glob, Bash(mkdir:*), Bash(git init:*), TodoWrite, AskUserQuestion, Skill, Task
 ---
 
 # Marketplace Creation Workflow