feat(read): target any tab for page info and extraction

- Add --tab option to all extract commands and page info
- Thread tab_id through the SDK extract and page namespaces
- Route page.info with a tab_id to tabs.status for cross-tab metadata
- Accept tab_id in the MCP page_info, extract_text, extract_markdown tools
- Forward tabId in the extension page.info and extract.html handlers
- Keep the active tab as default when no tab is given

- Cover tab-scoped reads in API, CLI, and MCP tests
- Bump package and extension version to 0.16.7
- Refresh uv.lock with current dependency versions

tests/test_api.py

@@ -299,22 +299,28 @@ class TestExtract:
     result = b.extract.markdown()
 
     assert result == "# Title"
-    mock_send.assert_called_once_with("extract.markdown", {"selector": None}, profile=None, remote=None, key=None)
+    mock_send.assert_called_once_with("extract.markdown", {"selector": None, "tabId": None}, profile=None, remote=None, key=None)
 
   def test_extract_markdown_selector(self, b, mock_send):
     mock_send.return_value = "## Post"
 
     assert b.extract.markdown("article") == "## Post"
-    mock_send.assert_called_once_with("extract.markdown", {"selector": "article"}, profile=None, remote=None, key=None)
+    mock_send.assert_called_once_with("extract.markdown", {"selector": "article", "tabId": None}, profile=None, remote=None, key=None)
 
   def test_extract_links(self, b, mock_send):
     mock_send.return_value = [{"href": "https://x"}]
     assert b.extract.links() == [{"href": "https://x"}]
-    mock_send.assert_called_once_with("extract.links", {}, profile=None, remote=None, key=None)
+    mock_send.assert_called_once_with("extract.links", {"tabId": None}, profile=None, remote=None, key=None)
 
   def test_extract_text_none(self, b, mock_send):
     mock_send.return_value = None
     assert b.extract.text() == ""
+    mock_send.assert_called_once_with("extract.text", {"tabId": None}, profile=None, remote=None, key=None)
+
+  def test_extract_markdown_tab_id(self, b, mock_send):
+    mock_send.return_value = "# Specific"
+    assert b.extract.markdown(tab_id=42) == "# Specific"
+    mock_send.assert_called_once_with("extract.markdown", {"selector": None, "tabId": 42}, profile=None, remote=None, key=None)
 
 # ── Tabs ──────────────────────────────────────────────────────────────────────
 
@@ -869,6 +875,11 @@ class TestPageStorageCookies:
     assert b.page.info() == {"title": "X"}
     mock_send.assert_called_once_with("page.info", {}, profile=None, remote=None, key=None)
 
+  def test_page_info_tab_id(self, b, mock_send):
+    mock_send.return_value = {"title": "X"}
+    assert b.page.info(tab_id=42) == {"title": "X"}
+    mock_send.assert_called_once_with("tabs.status", {"tabId": 42}, profile=None, remote=None, key=None)
+
   def test_storage_get(self, b, mock_send):
     mock_send.return_value = "v"
     assert b.storage.get("k") == "v"