chore(release): bump version to 0.48.0

Release highlights:
- VersionedStorage interface for pluggable backends
- bd types command and enhancement type alias
- bd close -m flag (git commit convention)
- RepoContext API for centralized git operations
- Dolt backend improvements (WIP)
- Many bug fixes for doctor, sync, hooks, worktrees

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

integrations/beads-mcp/pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "beads-mcp"
-version = "0.47.2"
+version = "0.48.0"
 description = "MCP server for beads issue tracker."
 readme = "README.md"
 requires-python = ">=3.10"
@@ -66,7 +66,7 @@ warn_return_any = false
 check_untyped_defs = false
 
 [tool.ruff]
-target-version = "0.47.2"
+target-version = "0.48.0"
 line-length = 115
 
 [tool.ruff.lint]