fix: address audit low-hanging fruit — docs accuracy, auction timing, stubs, tests

- Docs: "No Cloud" → "No Cloud AI" (frontend uses CDN for Bootstrap/HTMX/fonts)
- Docs: "600+" → "640+" tests, "20+" → "58" endpoints (actual counts)
- Docs: LND described as "scaffolded" not "gRPC-ready"; remove "agents earn sats"
- Fix auction timing: coordinator sleep(0) → sleep(AUCTION_DURATION_SECONDS)
- agent_core: implement remember() with dedup/eviction, communicate() via swarm comms
- Tests: add CLI tests for chat, think, and backend/model-size forwarding (647 passing)

https://claude.ai/code/session_01SZTwAkTg6v4ybv8g9NLxqN

tests/test_cli.py

@@ -27,3 +27,45 @@ def test_status_does_not_use_inline_string():
 
     call_args = mock_timmy.print_response.call_args
     assert call_args[0][0] != "Brief status report — one sentence."
+
+
+def test_chat_sends_message_to_agent():
+    """chat command must pass the user message to the agent with streaming."""
+    mock_timmy = MagicMock()
+
+    with patch("timmy.cli.create_timmy", return_value=mock_timmy):
+        runner.invoke(app, ["chat", "Hello Timmy"])
+
+    mock_timmy.print_response.assert_called_once_with("Hello Timmy", stream=True)
+
+
+def test_think_sends_topic_to_agent():
+    """think command must pass the topic wrapped in a prompt with streaming."""
+    mock_timmy = MagicMock()
+
+    with patch("timmy.cli.create_timmy", return_value=mock_timmy):
+        runner.invoke(app, ["think", "Bitcoin self-custody"])
+
+    mock_timmy.print_response.assert_called_once_with(
+        "Think carefully about: Bitcoin self-custody", stream=True
+    )
+
+
+def test_chat_passes_backend_option():
+    """chat --backend airllm must forward the backend to create_timmy."""
+    mock_timmy = MagicMock()
+
+    with patch("timmy.cli.create_timmy", return_value=mock_timmy) as mock_create:
+        runner.invoke(app, ["chat", "test", "--backend", "airllm"])
+
+    mock_create.assert_called_once_with(backend="airllm", model_size=None)
+
+
+def test_think_passes_model_size_option():
+    """think --model-size 70b must forward the model size to create_timmy."""
+    mock_timmy = MagicMock()
+
+    with patch("timmy.cli.create_timmy", return_value=mock_timmy) as mock_create:
+        runner.invoke(app, ["think", "topic", "--model-size", "70b"])
+
+    mock_create.assert_called_once_with(backend=None, model_size="70b")