Patch release for the fixes from the Codex review of 0.3.0: ticker
validation and encoded cache file names (path traversal via a ticker),
cross-process ownership DB locking, history-preserving snapshot sync,
and MCP input limits. MSRV is now 1.89.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Bump the workspace and npm packages to 0.3.0. The release workflow
builds and attaches idx-mcp binaries next to idx, the npm launcher and
installer pick their binary from package.json so npm/idx-mcp reuses
them, and the npm smoke test covers both packages.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>