feat: add version to session header and /status dialog (#8802)

packages/opencode/src/cli/cmd/tui/component/dialog-status.tsx

@@ -2,6 +2,7 @@ import { TextAttributes } from "@opentui/core"
 import { useTheme } from "../context/theme"
 import { useSync } from "@tui/context/sync"
 import { For, Match, Switch, Show, createMemo } from "solid-js"
+import { Installation } from "@/installation"
 
 export type DialogStatusProps = {}
 
@@ -44,6 +45,7 @@ export function DialogStatus() {
         </text>
         <text fg={theme.textMuted}>esc</text>
       </box>
+      <text fg={theme.textMuted}>OpenCode v{Installation.VERSION}</text>
       <Show when={Object.keys(sync.data.mcp).length > 0} fallback={<text fg={theme.text}>No MCP Servers</text>}>
         <box>
           <text fg={theme.text}>{Object.keys(sync.data.mcp).length} MCP Servers</text>