feat: add performance controls for large browser ops

- Add throttled large-operation handling for tab, group, and session commands.
- Introduce performance profiles, audible-tab aware gentle mode, and job progress tracking.
- Support background session restores with status/cancel commands and lazy placeholders.
- Expose new perf and extension CLI groups plus matching Python SDK methods.
- Preserve pinned tabs during session snapshots and debounce auto-save updates.
- Bump browser-cli and extension versions to 0.10.0 and add pytest-cov to dev deps.
- Add coverage for performance controls, background jobs, lazy restores, and tab metadata.

tests/test_tabs.py

@@ -1,7 +1,6 @@
 """Tests for tabs.* commands."""
 import pytest
 
-
 def test_tabs_list(browser):
     tabs = browser("tabs.list")
     assert isinstance(tabs, list)
@@ -12,59 +11,51 @@ def test_tabs_list(browser):
     assert "url" in first
     assert "title" in first
     assert "muted" in first
-
+    assert "groupId" in first
 
 def test_tabs_count(browser):
     count = browser("tabs.count", {})
     tabs = browser("tabs.list")
     assert count == len(tabs)
 
-
 def test_tabs_count_with_pattern(browser):
     count = browser("tabs.count", {"pattern": "http"})
     assert isinstance(count, int)
     assert count >= 0
 
-
 def test_tabs_filter(browser):
     result = browser("tabs.filter", {"pattern": "http"})
     assert isinstance(result, list)
     for tab in result:
         assert "http" in tab.get("url", "")
 
-
 def test_tabs_query(browser):
     result = browser("tabs.query", {"search": "a"})
     assert isinstance(result, list)
 
-
 def test_tabs_active_exists(browser):
     tabs = browser("tabs.list")
     active = [t for t in tabs if t.get("active")]
     assert len(active) >= 1, "Expected at least one active tab"
 
-
 def test_tabs_active_in_window(browser):
     active = next(t for t in browser("tabs.list") if t.get("active"))
     result = browser("tabs.active_in_window", {"windowId": active["windowId"]})
     assert result["id"] == active["id"]
     assert result["windowId"] == active["windowId"]
 
-
 def test_tabs_status(browser):
     result = browser("tabs.status", {})
     assert isinstance(result, dict)
     assert "id" in result
     assert "muted" in result
 
-
 def test_tabs_html(browser, http_tab):
     html = browser("tabs.html", {"tabId": http_tab["id"]})
     assert isinstance(html, str)
     assert len(html) > 0
     assert "<html" in html.lower() or "<!doctype" in html.lower()
 
-
 def test_tabs_close_by_id(browser):
     result = browser("navigate.open", {"url": "https://example.com", "background": True})
     tab_id = result["id"]
@@ -74,7 +65,6 @@ def test_tabs_close_by_id(browser):
     tabs = browser("tabs.list")
     assert tab_id not in [t["id"] for t in tabs]
 
-
 def test_tabs_dedupe(browser):
     # Open the same URL twice
     r1 = browser("navigate.open", {"url": "https://example.com", "background": True})
@@ -97,13 +87,11 @@ def test_tabs_dedupe(browser):
             except Exception:
                 pass
 
-
 def test_tabs_sort(browser):
     result = browser("tabs.sort", {"by": "domain"})
     # No error and at least returns something (None or dict)
     assert result is None or isinstance(result, dict)
 
-
 def test_tabs_move_forward(browser):
     r1 = browser("navigate.open", {"url": "https://example.com", "background": True})
     r2 = browser("navigate.open", {"url": "https://example.com", "background": True})
@@ -116,13 +104,11 @@ def test_tabs_move_forward(browser):
         browser("tabs.close", {"tabId": id1})
         browser("tabs.close", {"tabId": id2})
 
-
 def test_tabs_merge_windows_no_crash(browser):
     result = browser("tabs.merge_windows")
     assert isinstance(result, dict)
     assert "moved" in result
 
-
 def test_tabs_mute_and_unmute(browser, http_tab):
     muted = browser("tabs.mute", {"tabId": http_tab["id"]})
     assert isinstance(muted, dict)
@@ -142,7 +128,6 @@ def test_tabs_mute_and_unmute(browser, http_tab):
     status = browser("tabs.status", {"tabId": http_tab["id"]})
     assert status["muted"] is False
 
-
 def test_tabs_mute_requires_explicit_tab_when_multiple_tabs_open(browser):
     opened = browser("navigate.open", {"url": "https://example.com", "background": True})
     try: