v1.46.1: re-check of v1.46.0 — HP-1460-01, -02, -03

HP-1460-01: v1.46.0 stopped overwriting attachments, but picking a free name
and taking it were two steps. Two uploads racing between them agreed on the
same name, both answered 200, and one set of bytes replaced the other;
files/migrate had the same check-then-copy gap. reserve_filename now claims the
name with O_CREAT|O_EXCL as it picks it, and both paths use it. It also splits
the extension off the RAW name and budgets the stem against MAX_FILENAME
including the collision tag — a maximal name lost its '.pdf' and then grew past
the limit, so the view sanitised the request back to a different name and the
attachment 404'd for good.

HP-1460-02: cleanup lived in an 'except Exception', which CancelledError walks
past, only one tmp_path was tracked, promotion had no finally, and the
collector only walks marker folders — an aborted transfer stranded a .upload-*
that nothing would ever remove. An outer finally owns every temporary, a second
'file' part is refused, promotion failure cleans up, and sweep_upload_temps
runs at setup, daily, and inside the commit-scoped collector. Chunks are
batched to 1 MB per disk task instead of one per 64 KB.

HP-1460-03: the layout event reached the static card and not the full one, so
two full cards diverged until a reload. The full card subscribes now and
re-reads ONLY the layout, keyed on its revision. Two hazards handled: it
records revisions it produced itself, and the reaction is deferred ~200 ms
because the event can beat the reply to our own write over the same socket;
positions dragged but not yet sent are flushed and merged on top, so a fix for
a stale UI cannot become a lost drag.

Tests: smoke_layout_sync (fails on a v1.46.0 build), four pure tests for atomic
reservation incl. 20-thread concurrency and the length boundary, a backend test
walking every failing exit path of an upload, and — as the report asked — an
HA-harness test that a repair issue disappears with its space.
Docs: CHANGELOG.md + CHANGELOG.ru.md + ARCHITECTURE.md + TESTING.md + STATUS.md.

custom_components/houseplan/__init__.py

@@ -2,11 +2,13 @@
 from __future__ import annotations
 
 import logging
+from datetime import timedelta
 from pathlib import Path
 
 from homeassistant.components.frontend import add_extra_js_url
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryNotReady
+from homeassistant.helpers.event import async_track_time_interval
 
 from . import websocket_api as hp_ws
 from .const import (
@@ -18,6 +20,7 @@ from .const import (
     PLANS_URL,
     VERSION,
 )
+from .plans import sweep_upload_temps
 from .repairs import async_check_plan_files
 from .store import HouseplanConfigEntry, create_data
 
@@ -97,6 +100,25 @@ async def async_setup_entry(hass: HomeAssistant, entry: HouseplanConfigEntry) ->
         )
 
     await async_check_plan_files(hass, entry)
+
+    # Abandoned upload temporaries (HP-1460-02). A request cleans up after
+    # itself; a hard kill mid-upload does not, and the commit-scoped collector
+    # only walks marker folders — so without this a `.upload-*` from a crashed
+    # transfer would sit there for good, and on an instance nobody edits, so
+    # would a cancelled attachment. Once at startup, then daily.
+    async def _sweep(_now=None) -> None:
+        files_dir = Path(hass.config.path(FILES_DIR))
+        try:
+            n = await hass.async_add_executor_job(sweep_upload_temps, files_dir)
+            if n:
+                _LOGGER.info("House Plan: removed %s abandoned upload temporaries", n)
+        except Exception:  # noqa: BLE001 — housekeeping must never fail a setup
+            _LOGGER.exception("House Plan: sweeping upload temporaries failed")
+
+    await _sweep()
+    entry.async_on_unload(
+        async_track_time_interval(hass, _sweep, timedelta(hours=24))
+    )
     return True