fix: Update remaining version files to 0.30.3

Files missed in manual version bump:
- .claude-plugin/plugin.json
- .claude-plugin/marketplace.json
- integrations/beads-mcp/pyproject.toml
- integrations/beads-mcp/__init__.py
- Hook templates

Generated with Claude Code

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

integrations/beads-mcp/pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "beads-mcp"
-version = "0.30.2"
+version = "0.30.3"
 description = "MCP server for beads issue tracker."
 readme = "README.md"
 requires-python = ">=3.10"

integrations/beads-mcp/src/beads_mcp/__init__.py

@@ -4,4 +4,4 @@ This package provides an MCP (Model Context Protocol) server that exposes
 beads (bd) issue tracker functionality to MCP Clients.
 """
 
-__version__ = "0.30.2"
+__version__ = "0.30.3"