Collapse the separate `sort_name` column into `name_sort_key`, which is now
the single user-settable sort field: always normalized and indexed for fast
ordering, derived from `name` by default, and overridable. A new
`name_sort_key_custom` boolean marks user/metadata overrides so they survive
renames and rescans.
- Drop the `roms.sort_name` column; repurpose migration 0085 to add
`name_sort_key_custom`.
- Derive the key via `@validates("name")` unless pinned custom; the edit
dialog, unmatch flow, and ES-DE gamelist <sortname> set custom keys.
- update_rom / scan_rom keep the columns in sync explicitly (bulk update and
construction bypass / reorder the validator).
- Frontend: edit field drives name_sort_key (empty when auto), api sends the
override only when custom, regenerated types updated.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Centralize the *_no_tags / *_no_ext / *_extension columns (derived from a
file name) behind @validates hooks instead of computing them by hand at
every write site:
- Add pure helpers (compute_file_name_parts and friends) to models.base;
the filesystem base handler now delegates to them.
- Add @validates on Rom (fs_name), BaseAsset (file_name, inherited by all
asset subclasses), and Firmware (file_name).
- update_rom keeps the fs_name-derived columns in sync on bulk update(),
which also fixes the rename path never updating fs_extension.
- Drop the now-redundant computations at the scan/rename call sites.
Also fix the migration backfill loop and a pre-existing list[str | None]
type mismatch surfaced in scan_handler. Add tests for the helpers, the
validators, and the update_rom bulk-sync path.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>