Reject non-integer weekday values in presence pattern requests

The create and edit pattern models typed weekday values as lax int, so
JSON true, "1" and 1.0 were coerced to weekday 1. Type them StrictInt
so each is a 422 naming the pattern field, and add create and edit
regression cases for bool, string, float and out-of-range weekdays.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

api/routes_admin.py

@@ -623,15 +623,16 @@ class AdminPresencePatternCreateRequest(BaseModel):
     covers that week (Monday=0); every week of the cycle must be
     covered, which the PRESENCE MODEL enforces at construction, not
     this shape — as it does the non-blank ``name`` and the
-    ``home``/``away`` ``kind``.  ``cycle_length_weeks`` is a strict
-    JSON integer: ``2.0`` or ``"2"`` is a 422, not a silent coercion.
+    ``home``/``away`` ``kind``.  ``cycle_length_weeks`` and the weekday
+    values are strict JSON integers: ``2.0``, ``"2"`` or ``true`` is a
+    422, not a silent coercion.
     """
 
     name: str
     kind: str
     cycle_length_weeks: StrictInt
     anchor_date: str
-    pattern: dict[int, list[int]]
+    pattern: dict[int, list[StrictInt]]
 
 
 class AdminPresencePatternEditRequest(BaseModel):
@@ -646,7 +647,7 @@ class AdminPresencePatternEditRequest(BaseModel):
     kind: str | None = None
     cycle_length_weeks: StrictInt | None = None
     anchor_date: str | None = None
-    pattern: dict[int, list[int]] | None = None
+    pattern: dict[int, list[StrictInt]] | None = None
 
 
 class AdminPresencePatternResponse(BaseModel):