fix(6229): remove the Profile settings page — nothing read it

The Profile tab said an assistant used it to personalise chat and a daily
journal. Neither exists, and nothing read the profile: the page saved to
user_profiles and the backup carried it. Removed the tab, the client calls,
/api/profile, the service and the model, and migration 0123 drops the table
(downgrade recreates it empty).

Backup format v27 stops writing user_profiles; an older archive carrying the
section still restores, and the file-restore integration test now proves it.

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

tests/test_integration_backup_file_restore.py

@@ -1,6 +1,6 @@
-"""Real-Postgres proof that the scheduled backup's FILE restores (milestone
-523): a payload written as the tar, read back through `scribe.restore`'s
-loader, and fed to the real `restore_full_backup`.
+"""Real-Postgres proof that the scheduled backup's FILE restores: a payload
+written as the tar, read back through `scribe.restore`'s loader, and fed to
+the real `restore_full_backup`.
 
 The unit lane already shows the tar hands back the dict it was given. What
 only this lane shows is that the dict it hands back is one the restore
@@ -16,7 +16,6 @@ from scribe.models.milestone import Milestone
 from scribe.models.note import Note
 from scribe.models.project import Project
 from scribe.models.user import User
-from scribe.models.user_profile import UserProfile
 from scribe.restore import load_backup, run
 from scribe.services import backup
 from scribe.services.backup_file import write_archive
@@ -52,7 +51,8 @@ async def _no_leftovers():
 async def written(tmp_path):
     """A project with a milestone and a task in it, exported with the real
     row builders, renamed so the restore mints a separate user, and written
-    as the backup tar."""
+    as the backup tar. It also carries a `user_profiles` section, as an
+    archive from before v27 does."""
     async with async_session() as s:
         user = await ensure_user(s, OWNER)
         project = Project(user_id=user.id, title="Restore drill")
@@ -65,10 +65,6 @@ async def written(tmp_path):
                     title="Prove the restore", body="From the tar, not the JSON.",
                     status="todo", note_type="note", task_kind="work")
         s.add(note)
-        profile = UserProfile(user_id=user.id, display_name="Drill Owner",
-                              tone="technical", interests=["backups"],
-                              work_schedule={"start": "09:00"})
-        s.add(profile)
         await s.commit()
         payload = {
             "version": backup.BACKUP_VERSION,
@@ -77,7 +73,8 @@ async def written(tmp_path):
             "projects": backup._project_rows([project]),
             "milestones": backup._milestone_rows([milestone]),
             "notes": backup._note_rows([note]),
-            "user_profiles": backup._user_profile_rows([profile]),
+            "user_profiles": [{"user_id": user.id, "display_name": "Drill Owner",
+                               "tone": "technical", "interests": ["backups"]}],
         }
     payload["users"][0]["username"] = RESTORED
     from datetime import datetime, timezone
@@ -94,19 +91,10 @@ async def test_the_tar_restores_with_every_id_remapped(written):
         project = (await s.execute(select(Project).where(Project.user_id == user.id))).scalars().one()
         milestone = (await s.execute(select(Milestone).where(Milestone.user_id == user.id))).scalars().one()
         note = (await s.execute(select(Note).where(Note.user_id == user.id))).scalars().one()
-        profile = (await s.execute(
-            select(UserProfile).where(UserProfile.user_id == user.id)
-        )).scalars().one()
     assert project.title == "Restore drill"
     assert (note.project_id, note.milestone_id) == (project.id, milestone.id)
     assert note.body == "From the tar, not the JSON."
     assert note.status == "todo"
-    # The Profile page travels with its user; a field left blank stays
-    # blank rather than restoring as the page's default.
-    assert (profile.display_name, profile.tone) == ("Drill Owner", "technical")
-    assert profile.interests == ["backups"]
-    assert profile.work_schedule == {"start": "09:00"}
-    assert profile.job_title is None
 
 
 async def test_the_command_refuses_a_database_with_accounts(written):

tests/test_services_backup.py

@@ -21,11 +21,8 @@ from scribe.services import backup
 def test_backup_version_is_current():
     """The bump is the point of the test — a payload section added without
     moving the version produces backups that are structurally different and
-    indistinguishable by inspection.
-
-    (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 == 26
+    indistinguishable by inspection."""
+    assert backup.BACKUP_VERSION == 27
 
 
 def _exportable_note(**over):
@@ -164,7 +161,6 @@ 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),
@@ -212,7 +208,6 @@ 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),
     }
 
 
@@ -324,7 +319,6 @@ 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,
@@ -593,9 +587,7 @@ async def test_export_full_backup_contains_every_declared_section():
                 # v25: family canon.
                 "platforms", "project_platforms", "family_ideas",
                 "family_idea_platforms", "family_idea_references",
-                "family_adoptions", "family_decisions",
-                # v26: the Profile page.
-                "user_profiles"):
+                "family_adoptions", "family_decisions"):
         assert key in out, f"missing export section: {key}"
         assert out[key] == []