core: add db command for database inspection and querying

packages/opencode/src/index.ts

@@ -26,6 +26,7 @@ import { EOL } from "os"
 import { WebCommand } from "./cli/cmd/web"
 import { PrCommand } from "./cli/cmd/pr"
 import { SessionCommand } from "./cli/cmd/session"
+import { DbCommand } from "./cli/cmd/db"
 import path from "path"
 import { Global } from "./global"
 import { JsonMigration } from "./storage/json-migration"
@@ -138,6 +139,7 @@ const cli = yargs(hideBin(process.argv))
   .command(GithubCommand)
   .command(PrCommand)
   .command(SessionCommand)
+  .command(DbCommand)
   .fail((msg, err) => {
     if (
       msg?.startsWith("Unknown argument") ||