feat: add readable duplex messaging

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a03397-4d51-7fd1-8ff2-946eb22ea2bc

tests/test_routing.py

@@ -1,17 +1,30 @@
 import pytest
 
-from tamq.routing import parse_address_line
+from tamq.routing import parse_address_line, parse_command_line
 
 
-@pytest.mark.parametrize("prefix", ["@", "#"])
-def test_direct_address(prefix):
-    routed = parse_address_line(f"{prefix}railiance-platform: do something!")
+def test_direct_address_uses_readable_case_sensitive_grammar():
+    routed = parse_address_line("To:railiance-platform: do something!")
     assert routed.body == "do something!"
     assert routed.target_repo == "railiance-platform"
 
 
-def test_ordinary_input_is_unchanged():
-    assert parse_address_line("hello @repo: not at start") is None
-    assert parse_address_line("@repo:") is None
-    assert parse_address_line("# from repo: inbound envelope") is None
-    assert parse_address_line("##repo: not an address") is None
+@pytest.mark.parametrize(
+    "line",
+    [
+        "@repo: removed",
+        "#repo: removed",
+        "to:repo: wrong case",
+        "hello To:repo: not at start",
+        "To:repo:",
+        "From:repo: inbound envelope",
+    ],
+)
+def test_non_protocol_and_legacy_input_is_not_routed(line):
+    assert parse_address_line(line) is None
+
+
+def test_operator_command_grammar():
+    assert parse_command_line("Cmd: mode=trigger") == "mode=trigger"
+    assert parse_command_line("Cmd: reset-limits") == "reset-limits"
+    assert parse_command_line("cmd: mode=trigger") is None