Fix calendar routing and user-local time context (#408)

* fix(chat): add user-local time context

* fix(chat): route calendar follow-up phrasing

* refactor(chat): log tool intent routing reasons

* test(chat): align user time prompt shim

---------

Co-authored-by: Alex Kenley <Alex.Kenley@threatvectorsecurity.com>

tests/test_action_intents.py

@@ -1,14 +1,26 @@
-from src.action_intents import message_needs_tools
+from src.action_intents import classify_tool_intent, message_needs_tools
 
 
 def test_calendar_entry_request_promotes_to_agent():
     assert message_needs_tools("Can you add an entry to my calendar?")
+    intent = classify_tool_intent("Can you add an entry to my calendar?")
+    assert intent.needs_tools
+    assert intent.category == "calendar"
 
 
 def test_calendar_imperative_variants_promote_to_agent():
     assert message_needs_tools("add lunch with Sam to my calendar tomorrow at noon")
     assert message_needs_tools("schedule a call with Mina next Friday")
     assert message_needs_tools("put dentist appointment on my calendar")
+    assert message_needs_tools("Alright. Recreate that same appointment")
+    assert message_needs_tools("Okay delete that doctor appointment from the calendar")
+    assert message_needs_tools("have another go at adding a test entry to the calendar")
+    assert message_needs_tools(
+        "Okay so you should be able to create that calendar event for tomorrow at 1:30 p.m. right for me to go to the hardware store"
+    )
+    assert message_needs_tools(
+        "make it an appointment at 12pm for me to visit the doctor it's tomorrow the 2nd of June 2026"
+    )
 
 
 def test_note_todo_and_reminder_actions_promote_to_agent():
@@ -33,3 +45,12 @@ def test_explanatory_calendar_questions_stay_plain_chat():
     assert not message_needs_tools("How do I add an entry to my calendar?")
     assert not message_needs_tools("What about the built-in Odysseus calendar, is that linked to email?")
     assert not message_needs_tools("Can you explain how calendar reminders work?")
+    intent = classify_tool_intent("How do I add an entry to my calendar?")
+    assert not intent.needs_tools
+    assert intent.reason == "explanatory feature question"
+
+
+def test_router_reports_non_calendar_categories():
+    assert classify_tool_intent("reply to that email").category == "email"
+    assert classify_tool_intent("open my calendar").category == "ui"
+    assert classify_tool_intent("research cost effective local models").category == "research"