Description

Preview builds derive the channel from the git branch. If that channel contains /, OpenCode uses it directly in the SQLite database filename.
In my case, the installed preview binary reports:
0.0.0-foo/bar-202603061937
and startup tries to open:
/home/aasoft/.local/share/opencode/opencode-foo/bar.db
That turns the database filename into a nested path, and startup fails with:
unable to open database file
This looks related to #16224, but it is a different failure mode. #16224 is about slash-containing preview channels breaking version/plugin flows; this one is the same unsanitized channel reaching the local SQLite filename.

Plugins

None configured (~/.config/opencode/opencode.jsonc has an empty plugin array)

OpenCode version

0.0.0-dev-202603061937 (but with a branch name that has a slash in it, eg foo/bar)

Steps to reproduce

1. Build or install a preview opencode binary whose channel comes from a branch name containing /, for example foo/bar
2. Run opencode
3. Observe startup failure with unable to open database file

Screenshot and/or share link

Error:
Unexpected error, check log file ... unable to open database file

Log excerpt:

INFO  ... service=db path=/home/aasoft/.local/share/opencode/opencode-foo/bar.db opening database

Operating System

Arch Linux

Terminal

Alacritty