feat: status 命令支持可选 change-name 参数，展示详细状态与下一步建议

src/cli.ts

@@ -15,6 +15,8 @@ import { scanChanges } from "./core/scanner.ts";
 import { UsageError, ConfigError, CommandError, InternalError, CliError } from "./cli/errors.ts";
 import { printError } from "./cli/output.ts";
 import { showGlobalHelp, showCommandHelp } from "./cli/help.ts";
+import type { ChangeStatus } from "./types.ts";
+import { defaultConfig } from "./defaults/config.ts";
 
 function requireProjectRoot(): string {
   const root = findProjectRoot();
@@ -24,6 +26,62 @@ function requireProjectRoot(): string {
   return root;
 }
 
+function formatChangeStatus(change: ChangeStatus): string {
+  const lines: string[] = [];
+  lines.push(`变更：${change.name}`);
+
+  lines.push("  规划阶段：");
+  for (const doc of change.documents) {
+    if (doc.completed) {
+      lines.push(`    ${doc.name}.md    ✓ 已完成`);
+    } else {
+      const docConfig = defaultConfig.stages.plan?.documents.find((d) => d.name === doc.name);
+      const depInfo = !doc.dependMet && docConfig?.depend?.length
+        ? `（依赖 ${docConfig.depend.map((d) => `${d}.md`).join("、")}）`
+        : "";
+      lines.push(`    ${doc.name}.md    ○ 待完成${depInfo}`);
+    }
+  }
+
+  const completedCount = change.documents.filter((d) => d.completed).length;
+  lines.push(`  规划进度：${completedCount}/${change.documents.length} 文档已完成`);
+
+  if (change.buildUnlocked) {
+    lines.push("  构建阶段：已解锁");
+  } else {
+    lines.push("  构建阶段：未解锁（需完成规划）");
+  }
+
+  if (change.taskProgress) {
+    lines.push(`  任务进度：${change.taskProgress.completed}/${change.taskProgress.total} 已完成`);
+  }
+
+  lines.push("");
+  lines.push(`  建议下一步：${suggestNextStep(change)}`);
+
+  return lines.join("\n");
+}
+
+function suggestNextStep(change: ChangeStatus): string {
+  if (!change.planCompleted) {
+    const nextDoc = change.documents.find((d) => !d.completed && d.dependMet);
+    if (nextDoc) {
+      return `rune plan ${change.name} ${nextDoc.name}`;
+    }
+    return `完成前置依赖后再规划文档`;
+  }
+
+  if (change.taskProgress && change.taskProgress.completed < change.taskProgress.total) {
+    return `rune build ${change.name}`;
+  }
+
+  if (change.taskProgress && change.taskProgress.completed === change.taskProgress.total) {
+    return `rune archive ${change.name}`;
+  }
+
+  return `rune build ${change.name}`;
+}
+
 const cli = cac("rune");
 
 cli.command("", "").action(() => {
@@ -140,20 +198,32 @@ cli.command("archive <change-name>", "归档阶段").action(
   },
 );
 
-cli.command("status", "查看变更状态").action(async () => {
-  const root = requireProjectRoot();
-  const changes = await scanChanges(root);
-  if (changes.length === 0) {
-    console.log("当前无进行中的变更。");
-    return;
-  }
-  for (const change of changes) {
-    const progress = change.taskProgress
-      ? ` (${change.taskProgress.completed}/${change.taskProgress.total} 任务)`
-      : "";
-    console.log(`- ${change.name}${progress} [${change.documents.join(", ")}]`);
-  }
-});
+cli.command("status [change-name]", "查看变更状态").action(
+  async (changeName?: string) => {
+    const root = requireProjectRoot();
+    const config = await loadConfig(root);
+    const changes = await scanChanges(root, config);
+
+    if (changeName) {
+      const change = changes.find((c) => c.name === changeName);
+      if (!change) {
+        throw new CommandError(`变更 "${changeName}" 不存在`, {
+          hint: "运行 rune status 查看所有变更",
+        });
+      }
+      console.log(formatChangeStatus(change));
+    } else {
+      if (changes.length === 0) {
+        console.log("当前无进行中的变更。");
+        return;
+      }
+      for (const change of changes) {
+        console.log(formatChangeStatus(change));
+        console.log("---\n");
+      }
+    }
+  },
+);
 
 function handleError(e: unknown): never {
   if (e instanceof CliError) {