OpenCode V2 Configuration

Docs: https://opencode.ai/v2/docs/config and https://opencode.ai/v2/docs/migrate-v1. Format: JSON or JSONC with "$schema": "https://opencode.ai/config.json".

Locations (merged farthest-ancestor-first, .opencode/ variants override):

~/.config/opencode/opencode.json(c)          global
<project>/opencode.json(c)                   project
<project>/.opencode/opencode.json(c)         project (higher precedence)

Terminal-only settings (theme, keybinds) belong in ~/.config/opencode/cli.json, never in opencode.json.

V1 -> V2 renames (apply exactly these)