v0.45.5

Patch Changes

• Renaming a file in the Files sidebar no longer doubles its markdown extension. The rename box hands you the whole filename with only the name part selected, so typing or pasting a name that already ends in .md left the original .md in place and committed notes.md.md. That produced two files for one document: notes.md.md is filed under the document name notes.md, which resolves back to a different file, so the next save wrote the same document out again as a plain notes.md beside it. Both names also land on one row in the sidebar, so only one of the two files was visible there. A typed .md or .mdx now replaces the retained one instead of stacking on it. Names that merely contain dots (v1.2.md, report.2026.md) and non-document files are untouched. This stops new doubled names from being created; .md.md and .mdx.mdx files already on disk are left alone and still need renaming by hand.