A confidence score reports how many rows were READ, never what they say:
the `all-positive` fixture scores a perfect 100 % while every credit is
imported as an expense, because each of those rows is perfectly readable.
Nothing between that score and the database looked at the signs — the
preview was an optional modal of 20 rows with no totals, and the final
confirmation listed the delimiter and the date format but neither the
amount mode nor the sign convention.
The `file-preview` step had been declared in `ImportWizardStep` since the
beginning and no dispatch ever aimed at it. It is a real step now,
traversed at every import and gated by nothing — in particular not by the
detection score, which is sign-blind by construction.
- `useImportWizard`: `parseAndPreview` parses and stops at the preview,
replacing `parsePreview` and the `parseAndCheckDuplicates` that jumped
straight to the duplicates ("skips preview step"); `checkDuplicates`,
dead code until now, is the preview's next button, so the rows the user
validated are the rows that get checked.
- `summarizeParsedRows`: the recap, pure and tested — outflows and their
total, inflows and theirs, rows in error. Totals stay SIGNED, since
magnitudes would hide the one thing the recap exists to expose. Computed
over the whole file, never over the twenty rows displayed.
- `flipSignFormat` + "Inverser les signes": the correction lands on the
CONFIGURATION, so it is persisted with the source and the next file from
that bank reads right on its own. In debit/credit mode it swaps the two
column indices rather than toggling a convention `mapRow` ignores there,
where a toggle would have been inert.
- `ImportConfirmation` states the amount mode, the sign convention (in the
mode that applies it) and the column mapping, named by header.
- `FilePreviewModal` removed: it was the redundant surface, and editing
the table alone would have mutated a still-live copy of it.
The `all-positive` KNOWN DEFECT marker is dropped rather than deleted. Its
three original expectations still hold — an unsigned file carries no
direction and detection cannot invent one — and two cases were added: the
recap tell (six outflows, zero inflows) and the honest limit, that
flipping this particular file only produces its mirror image.
1088 vitest (1054 before), tsc and vite build clean. No DB migration.
Resolves#329
