fix(523): the backup carries user_profiles - the Profile page travels with its user (#5879)

Settings -> Profile (name, role, expertise, response style, tone, interests,
working hours) is typed by its user and neither derived nor a credential, yet
_NOT_INCLUDED named it, so a restore dropped it without a word.

BACKUP_VERSION 26. Both exports carry it; the restore remaps only the user, and
a blank field stays blank rather than restoring as the page's default. The
column and import guards cover it, and the tar round-trip restores one.

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

tests/test_services_backup.py

@@ -27,7 +27,7 @@ def test_backup_version_is_current():
 
     (Named for the number it asserted until v10, which is exactly the drift a
     name-carrying-a-value invites; it now says what it checks.)"""
-    assert backup.BACKUP_VERSION == 25
+    assert backup.BACKUP_VERSION == 26
 
 
 def _exportable_note(**over):
@@ -166,6 +166,7 @@ def _column_guard_targets():
     from scribe.models.system import RecordSystem, System
     from scribe.models.task_log import TaskLog
     from scribe.models.user import User
+    from scribe.models.user_profile import UserProfile
 
     return {
         "users": (User, backup._user_rows),
@@ -213,6 +214,7 @@ def _column_guard_targets():
         "family_idea_references": (FamilyIdeaReference, backup._family_idea_reference_rows),
         "family_adoptions": (FamilyAdoption, backup._family_adoption_rows),
         "family_decisions": (FamilyDecision, backup._family_decision_rows),
+        "user_profiles": (UserProfile, backup._user_profile_rows),
     }
 
 
@@ -326,6 +328,7 @@ def _import_guard_targets():
         "system_usage_events": backup._build_system_usage_event,
         "retrieval_tuning_events": backup._build_retrieval_tuning_event,
         "moment_mappings": backup._build_moment_mapping,
+        "user_profiles": backup._build_user_profile,
         "design_systems": backup._build_design_system,
         "design_tokens": backup._build_design_token,
         "repo_bindings": backup._build_repo_binding,
@@ -599,7 +602,9 @@ async def test_export_full_backup_contains_every_declared_section():
                 # v25: family canon (milestone 463).
                 "platforms", "project_platforms", "family_ideas",
                 "family_idea_platforms", "family_idea_references",
-                "family_adoptions", "family_decisions"):
+                "family_adoptions", "family_decisions",
+                # v26: the Profile page (#5879).
+                "user_profiles"):
         assert key in out, f"missing export section: {key}"
         assert out[key] == []