alembic reads alembic.ini with encoding="locale". On Python 3.11 that is
the Windows ANSI code page even under PYTHONUTF8=1, which the desktop
shell sets, so the em dashes in the ini's comments raised
UnicodeDecodeError inside Config() on cp932/cp936/cp949/cp950 systems.
_run_alembic_upgrade treats that as "alembic unavailable": every startup
logged "alembic upgrade head skipped: 'cp949' codec can't decode byte
0xe2", never took the pre-migration backup, and never ran a migration --
including the data-healing ones (0006/0007) that the additive column
reconcile cannot replace.
The ini is now ASCII, with a note saying why, and a test parses it in
each of those code pages with the parser alembic builds and pins it
ASCII. Same Python 3.11 locale-decoding class as the .pth fix in #1795.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Two bugs from the v0.4.2 rename sweep:
- The lazy model import was rewritten to `from omnivoice.models.omnivoice import VoiceStudio`, a class the library does not export. ImportError is not ModuleNotFoundError, so the #564 source fallback never caught it and /generate 500'd on every default-engine request. The class keeps its library name — it is a checkpoint-referenced identifier, not branding.
- alembic resolved a bare relative script_location against the process cwd, and the desktop shell launches the backend from frontend/src-tauri, so a pending migration killed startup. script_location and prepend_sys_path are now anchored with %(here)s, with path_separator = os so Windows drive letters and paths with spaces survive. alembic floor raised to >=1.16.
Regression tests verified fail-before/pass-after for both.
The dictation hotkey could leave a blank dark square stuck on the desktop with no way to dismiss it. Three defects compounded: the tray listener's effect depended on [state], so it detached across an await on every state change and a press landing in that gap was lost; an idle pill renders null, so the window Rust had already shown was empty; and the opaque chrome background made that empty window a hard-edged square. Nothing could hide it — dismiss() is only reachable from the X button, Esc, or a post-session timer, none of which exist for a session that never started.
Fixed at the invariant rather than the call sites: the listener subscribes once for the component's lifetime, the widget window's chrome background is transparent, and an idle-but-visible window reconciles itself to hidden. The reconcile is polled (a dropped press changes no React state, so there is nothing to key an effect off) and aborts if its effect is torn down mid-check, so it can never hide a dictation that has just started.
Also in scope:
- The rename sweep had repointed three data-dir literals at a brand-named directory that does not exist, so smoke-test.sh verified a directory the backend never writes and desktop-prod.sh silently stopped clearing backend state on Windows. Both invisible on macOS, where they are usually run. A guard test now pins the assignments specifically.
- The dictation model picker's download sizes were wrong for all seven models, in both directions — Parakeet TDT v3 (the recommended default) understated 180 MB against an actual 670 MB, while the low-RAM fallbacks were overstated threefold, discouraging exactly the choice that would have helped. Measured from the published repos and pinned by a test.
- The 0.6B Parakeet models now decode on more threads, capped by host cores and still overridable.
- uninstall.ps1 gained a UTF-8 BOM (Windows PowerShell 5.1 mis-decodes its non-ASCII output without one), and sponsor.yml lost its last OmniVoice references.
