Slice 2d of the route-domain reorganization (#4082/#4071, per
specs/architecture-runtime-inventory.md §6.3). Moves history_routes.py into
routes/history/, leaving a backward-compat sys.modules shim at the old path.
Pure file reorganization, no behavior change.
The shim uses sys.modules replacement (same pattern as the merged gallery
#4903, research #4975, and memory #5007 slices) so that `import
routes.history_routes`, `from routes.history_routes import X`,
`importlib.import_module(...)`, and the `import ... as history_routes` +
`monkeypatch.setattr(history_routes, ...)` pattern used by
test_history_compact_tool_calls.py / test_fork_session_metadata.py all
operate on the same module object the application uses.
The canonical module does NOT depend on the shim — routes/history/
history_routes.py imports only from core/, src/, and routes.session_routes
(a sibling route module whose old import path stays valid via its own shim
when session is migrated later).
Three source-introspection test sites repointed to the new canonical path:
- test_history_db_fallback_hidden.py
- test_history_order_by_timestamp_regression.py
- test_model_helper_owner_scope.py
Adds tests/test_history_routes_shim.py to pin the sys.modules shim contract
(legacy and canonical paths resolve to the same module object; monkeypatch
via legacy alias reaches the canonical module).
Verified: compileall clean; full suite 4351 passed, 3 skipped.
GET /api/history/{session_id} skips messages whose metadata has `hidden` (e.g.
compaction summaries kept for AI context, not shown to the user) on the
in-memory path. The DB fallback — used when the in-memory history is empty,
e.g. after a restart — built the response from every stored row with no such
filter, so hidden messages leaked to the client on DB-served sessions.
Filter `hidden` out of the response on the DB path too. The rebuilt in-memory
session.history still includes them, so AI context (the compaction summaries)
is preserved.
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Tal.Yuan