Adds a single-file V2 plugin that exposes eight tools under the
`sqlite` namespace (open, close, list, query, exec, script, tables,
schema) so a model can read and write SQLite databases from a session.
- OpenCode discovers it automatically from ~/.config/opencode/plugins/.
- New runtime dependency: better-sqlite3 (installed in this repo's
node_modules so the host's module resolution picks it up).
- README documents install, copy-to-another-machine, options, and
troubleshooting; SETUP.md is a copy-paste checklist.
- Schema/options were trimmed down while authoring: the initial draft
registered a no-op SQLite function on every open as a 'future hook';
removed, it was dead code.
opencode-agent