renamle plug to plugin command

packages/opencode/specs/tui-plugins.md

@@ -7,7 +7,7 @@ Technical reference for the current TUI plugin system.
 - TUI plugin config lives in `tui.json`.
 - Author package entrypoint is `@opencode-ai/plugin/tui`.
 - Internal plugins load inside the CLI app the same way external TUI plugins do.
-- Package plugins can be installed with `opencode plug <module>`.
+- Package plugins can be installed with `opencode plugin <module>`.
 
 ## TUI config
 
@@ -103,8 +103,8 @@ Example:
 }
 ```
 
-- `opencode plug <module>` resolves and installs the package first, then reads `oc-plugin`, then patches config.
-- Alias: `opencode plugin <module>`.
+- `opencode plugin <module>` resolves and installs the package first, then reads `oc-plugin`, then patches config.
+- Alias: `opencode plug <module>`.
 - `-g` / `--global` writes into the global config dir.
 - Local installs write into `<git worktree>/.opencode` when inside a git repo, otherwise `<cwd>/.opencode`.
 - Without `--force`, an already-configured npm package name is a no-op.
@@ -180,7 +180,7 @@ Command behavior:
 - `ui.dialog` exposes the host dialog stack:
   - `replace(render, onClose?)`
   - `clear()`
-  - `setSize("medium" | "large")`
+  - `setSize("medium" | "large" | "xlarge")`
   - readonly `size`, `depth`, `open`
 
 ### Keybinds

packages/opencode/src/cli/cmd/plug.ts

@@ -307,9 +307,9 @@ export function createPlugTask(input: PlugInput, dep: PlugDeps = defaultPlugDeps
   }
 }
 
-export const PlugCommand = cmd({
-  command: "plug <module>",
-  aliases: ["plugin"],
+export const PluginCommand = cmd({
+  command: "plugin <module>",
+  aliases: ["plug"],
   describe: "install plugin and update config",
   builder: (yargs: Argv) => {
     return yargs

packages/opencode/src/index.ts

@@ -34,7 +34,7 @@ import { Global } from "./global"
 import { JsonMigration } from "./storage/json-migration"
 import { Database } from "./storage/db"
 import { errorMessage } from "./util/error"
-import { PlugCommand } from "./cli/cmd/plug"
+import { PluginCommand } from "./cli/cmd/plug"
 
 process.on("unhandledRejection", (e) => {
   Log.Default.error("rejection", {
@@ -153,7 +153,7 @@ const cli = yargs(hideBin(process.argv))
   .command(GithubCommand)
   .command(PrCommand)
   .command(SessionCommand)
-  .command(PlugCommand)
+  .command(PluginCommand)
   .command(DbCommand)
   .fail((msg, err) => {
     if (