[codex] Fix GPTNote capture grouping

CHANGELOG.md

@@ -0,0 +1,19 @@
+# 更新日志
+
+## Unreleased
+
+### 修复
+
+- 修复从 ChatGPT 选中表格内容时，保存到 Obsidian 后表格被压平成单段文本的问题。现在会保留为 Markdown 表格。
+- 修复点击 `AI 解释` 时误把最近问题一并写入 Obsidian 的问题。现在 `AI 解释` 只保存选中内容，`问答` 才会保存问题和回答。
+- 修复扩展重新加载后，页面上旧浮动按钮可能触发 `Extension context invalidated` 的问题。新 content script 会接管旧按钮，并在旧上下文失效时给出刷新页面提示。
+- 修复连续两次从同一条 ChatGPT 回答中保存 `AI 解释` 时重复生成标题的问题。现在同一回答的连续捕获会追加到同一个 `GPTNote AI 解释` 块下。
+
+### 变更
+
+- 为浏览器扩展拆分了选区 DOM 转 Markdown 和捕获 payload 构造逻辑，方便测试和后续维护。
+- 捕获 payload 新增 `sourceMessageId` 字段，用于判断多次捕获是否来自同一条 ChatGPT 回答。
+
+### 验证
+
+- 已通过 `pnpm verify`，覆盖 build、typecheck 和测试。

apps/browser-extension/package.json

@@ -6,6 +6,7 @@
   "scripts": {
     "build": "node esbuild.config.mjs",
     "dev": "node esbuild.config.mjs --watch",
+    "test": "vitest run",
     "typecheck": "tsc -p tsconfig.json --noEmit"
   },
   "dependencies": {
@@ -15,4 +16,3 @@
     "@types/chrome": "*"
   }
 }
-

apps/browser-extension/src/capture-payload.test.ts

@@ -0,0 +1,57 @@
+import { describe, expect, it } from "vitest";
+import { buildSelectionCapturePayload } from "./capture-payload";
+
+const context = {
+  pageUrl: "https://chatgpt.com/c/test",
+  pageTitle: "ChatGPT",
+  capturedAt: "2026-07-01T00:00:00.000Z",
+};
+
+describe("buildSelectionCapturePayload", () => {
+  it("sends only the selected content for AI explanation captures", () => {
+    expect(buildSelectionCapturePayload("llm-explanation", "selected answer", "nearest question", context)).toEqual({
+      type: "llm-explanation",
+      pageUrl: context.pageUrl,
+      pageTitle: context.pageTitle,
+      capturedAt: context.capturedAt,
+      answer: "selected answer",
+    });
+  });
+
+  it("sends the prompt only for Q&A captures", () => {
+    expect(buildSelectionCapturePayload("qa-pair", "selected answer", "nearest question", context)).toEqual({
+      type: "qa-pair",
+      pageUrl: context.pageUrl,
+      pageTitle: context.pageTitle,
+      capturedAt: context.capturedAt,
+      prompt: "nearest question",
+      answer: "selected answer",
+    });
+  });
+
+  it("sends quote captures as source text only", () => {
+    expect(buildSelectionCapturePayload("quote", "selected source", "nearest question", context)).toEqual({
+      type: "quote",
+      pageUrl: context.pageUrl,
+      pageTitle: context.pageTitle,
+      capturedAt: context.capturedAt,
+      sourceText: "selected source",
+    });
+  });
+
+  it("includes a source message id when the selected content belongs to one assistant answer", () => {
+    expect(
+      buildSelectionCapturePayload("llm-explanation", "selected answer", undefined, {
+        ...context,
+        sourceMessageId: "https://chatgpt.com/c/test:assistant:0",
+      }),
+    ).toEqual({
+      type: "llm-explanation",
+      pageUrl: context.pageUrl,
+      pageTitle: context.pageTitle,
+      capturedAt: context.capturedAt,
+      sourceMessageId: "https://chatgpt.com/c/test:assistant:0",
+      answer: "selected answer",
+    });
+  });
+});

apps/browser-extension/src/capture-payload.ts

@@ -0,0 +1,51 @@
+import type { CapturePayloadInput, CaptureType } from "@gptnote/shared";
+
+type CapturePageContext = {
+  pageUrl: string;
+  pageTitle: string;
+  sourceMessageId?: string;
+  capturedAt?: string;
+};
+
+export function buildSelectionCapturePayload(
+  type: CaptureType,
+  selection: string,
+  prompt: string | undefined,
+  context: CapturePageContext,
+): CapturePayloadInput {
+  const base: CapturePayloadInput = {
+    type,
+    pageUrl: context.pageUrl,
+    pageTitle: context.pageTitle,
+    capturedAt: context.capturedAt ?? new Date().toISOString(),
+  };
+
+  if (context.sourceMessageId) {
+    base.sourceMessageId = context.sourceMessageId;
+  }
+
+  if (type === "quote") {
+    return {
+      ...base,
+      sourceText: selection,
+    };
+  }
+
+  if (type === "llm-explanation") {
+    return {
+      ...base,
+      answer: selection,
+    };
+  }
+
+  const payload: CapturePayloadInput = {
+    ...base,
+    answer: selection,
+  };
+
+  if (prompt) {
+    payload.prompt = prompt;
+  }
+
+  return payload;
+}