rebrand: 将 opencode 改造为 zmo CLI 并隐藏非 CLI 命令

为打造自有纯 CLI 产品 zmo（类 Claude Code），在保留上游同步能力的前提下做套壳改造：
- 入口隐藏 9 个非 CLI 命令（console/web/github/pr/stats/export/import/db/debug）
- 全面 rebrand：scriptName、Logo、配置目录(~/.config/zmo)、bin 名、构建产物、可见文案
- env 双读兼容（ZMO_* 优先，回退 OPENCODE_*），配置文件名新增 zmo.json
- 刻意保留 @opencode-ai/* 内部包名与 opencode provider，避免破坏功能与上游同步

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

packages/opencode/src/cli/error.ts

@@ -47,7 +47,7 @@ export function FormatError(input: unknown): string | undefined {
   // MCPFailed: { name: string }
   if (NamedError.hasName(input, "MCPFailed")) {
     const data = isRecord(input) && isRecord(input.data) ? stringField(input.data, "name") : undefined
-    return `MCP server "${data}" failed. Note, opencode does not support MCP authentication yet.`
+    return `MCP server "${data}" failed. Note, zmo does not support MCP authentication yet.`
   }
 
   // AccountServiceError, AccountTransportError: TaggedErrorClass
@@ -64,8 +64,8 @@ export function FormatError(input: unknown): string | undefined {
     return [
       `Model not found: ${stringField(providerModelNotFound, "providerID")}/${stringField(providerModelNotFound, "modelID")}`,
       ...(suggestions.length ? ["Did you mean: " + suggestions.join(", ")] : []),
-      `Try: \`opencode models\` to list available models`,
-      `Or check your config (opencode.json) provider/model names`,
+      `Try: \`zmo models\` to list available models`,
+      `Or check your config (zmo.json) provider/model names`,
     ].join("\n")
   }